In baseball, interference occurs in situations in which a person illegally changes the course of play from what is expected. Interference might be committed by players on the offense, players not currently in the game, catchers, umpires, or spectators. Each type of interference is covered differently by the rules.

Offensive interference

The most common incidence of interference occurs when a member of the offensive team physically hinders the defensive team, decreasing its chances to make an out or increasing the chance that a baserunner will advance. Whenever this ''offensive interference'' occurs, the ball becomes dead. If the interference was committed by a

batter Batter or batters may refer to: Common meanings * Batter (cooking), thin dough that can be easily poured into a pan * Batter (baseball), person whose turn it is to face the pitcher * Batter (cricket), a player who is currently batting * Batter ...

or a

baserunner In baseball, base running is the act of running from base to base, performed by members of the team at bat. Base running is a tactical part of the game with the goal of eventually reaching home base (home plate) to score a run. Batters strive to ...

, that player is called

out Out may refer to: Arts, entertainment, and media Films * ''Out'' (1957 film), a documentary short about the Hungarian Revolution of 1956 * ''Out'' (1982 film), an American film directed by Eli Hollander * ''Out'' (2002 film), a Japanese film ba ...

and all other runners must return to the bases they occupied at the time of the interference. If interference is committed by a runner with the obvious intent of preventing a

double play In baseball and softball, a double play (denoted as DP in baseball statistics) is the act of making two outs during the same continuous play. Double plays can occur any time there is at least one baserunner and fewer than two outs. In Major Leag ...

, the batter-runner will be called out in addition to the runner who committed the interference. If interference is committed by the

batter-runner In baseball, base running is the act of running from base to base, performed by members of the team at bat. Base running is a tactical part of the game with the goal of eventually reaching home base (home plate) to score a run. Batters strive to ...

before he reaches first base with the possible intent of preventing a double play, the runner closest to scoring is called out in addition to the batter-runner. If interference is committed by a retired runner or by some other member of the offensive team, the runner who is most likely to have been put out will be called out. Under

Little League Little League Baseball and Softball (officially, Little League Baseball Inc) is a 501(c)(3) nonprofit organizationNFHS) and college (

NCAA The National Collegiate Athletic Association (NCAA) is a nonprofit organization that regulates student athletics among about 1,100 schools in the United States, Canada, and Puerto Rico. It also organizes the athletic programs of colleges an ...

) rules, if interference is committed by a runner with the effect of preventing a likely double play, regardless of his intent, the batter-runner will be called out in addition to the runner who committed the interference. Also under NFHS rules only, all runners are required to attempt to avoid collisions. If a runner fails to do so, he is guilty of malicious contact, which is one kind of offensive interference. Malicious contact carries the additional penalty of ejection from the game. In contrast, in professional and higher amateur baseball, violent collisions can occur without any interference (or obstruction), especially when a fielder is receiving a thrown ball near a base where a runner is trying to reach. Any collision that occurs in this situation is not interference, because the fielder's action is in regard to a thrown ball. As long as such a runner's actions are related to his attempt to reach the base, he cannot be called for interference. The most common case of this is when a runner is attempting to score and the catcher has control of the ball. If the catcher is in the path between

third base A third baseman, abbreviated 3B, is the player in baseball or softball whose responsibility is to defend the area nearest to third base — the third of four bases a baserunner must touch in succession to score a run. In the scoring system us ...

and

home plate A baseball field, also called a ball field or baseball diamond, is the field upon which the game of baseball is played. The term can also be used as a metonym for a baseball park. The term sandlot is sometimes used, although this usually refers ...

, the baserunner may strike the catcher with his body in an attempt to dislodge the ball from the catcher's hand and then reach home plate. This is usually attempted only when the play is close. When the catcher is set up and ready, the runner has little chance of knocking the ball away. Any such attempt presents a significant chance of injury to the baserunner, which has prompted the malicious contact rule to be used more often. In addition to the general subjective definition of offensive interference, it is also interference by specific rule when: * The bat hits the ball a second time in fair territory, such as while the bat is being dropped; * A batter or runner intentionally deflects the course of a batted ball in any manner; * A member of the offensive team stands near a base to impersonate a baserunner or to otherwise confuse or hinder the defense; * A coach physically assists a runner in returning to or leaving first or third base; * A batter, while running to first base, runs outside the three-foot running lane and interferes with the fielder taking a throw at first base; * A runner makes contact with a batted ball that did not go through or by a fielder, unless no infielder had a chance to immediately field the ball (in this instance, the runner is out, the batter is credited with a base hit, and no other runner advances unless forced to advance one base); * A runner makes contact with a fielder attempting to field a batted ball, except the batter with the catcher in the immediate vicinity of home plate immediately after the ball was batted; or * A member of the offensive team intentionally touches a thrown ball, or intentionally hinders a fielder attempting to make a throw. * The batter physically hinders the catcher's opportunity to throw out a baserunner while standing outside of the batter's box. There are some exceptions to the penalty for offensive interference. * If there are fewer than two outs and a runner is trying to score, and the batter interferes with the tag attempt at home plate, then the runner is out for the batter's interference, while the batter is not out. If there are two outs in this situation, the normal interference penalty applies: the batter is out and the run does not score. * If a runner's interference is caused by his being positioned at a legally occupied base and the fielder is trying to make a play on a batted ball in the vicinity of the base, interference is not called.

Verbal interference

At some levels of play, verbal as well as physical hindrance can be called for interference. For example, if a runner or other member of the offense calls out "foul" on a fair ball or "mine" on a fly ball, he may cause the defense to react differently from how they otherwise would have, resulting in an interference call. Some professional leagues do not have a distinction for verbal interference or obstruction and leave it as umpire judgement. The NPB in Japan, for example, verbal interference is illegal and runners will be called out on any spoken word meant to confuse a fielder or fielders during a play. In Major League Baseball, it is left as umpire judgement.

Cases of offensive interference

On October 15, 1969, in Game 4 of the

1969 World Series The 1969 World Series was the championship series of Major League Baseball's (MLB) 1969 season. The 66th edition of the World Series, it was a best-of-seven playoff between the American League (AL) champion Baltimore Orioles and the National L ...

between the

New York Mets The New York Mets are an American professional baseball team based in the New York City borough of Queens. The Mets compete in Major League Baseball (MLB) as a member of the National League (NL) East division. They are one of two major league ...

and

Baltimore Orioles The Baltimore Orioles are an American professional baseball team based in Baltimore. The Orioles compete in Major League Baseball (MLB) as a member club of the American League (AL) American League East, East division. As one of the American L ...

, Mets

pinch hitter In baseball, a pinch hitter is a substitute Batting (baseball), batter. Batters can be substituted at any time while the dead ball (baseball), ball is dead (not in active play); the manager (baseball), manager may use any player who has not yet ...

J.C. Martin J. C. Martin may refer to: * J. C. Martin (baseball) :For the former long-term mayor of Laredo, Texas, see '' J. C. Martin (Texas politician)''. Joseph Clifton Martin (born December 13, 1936) is an American former professional baseball player. He ...

attempted a tenth-inning

sacrifice bunt In baseball, a sacrifice bunt (also called a sacrifice hit) is a batter's act of deliberately bunting the ball, before there are two outs, in a manner that allows a baserunner to advance to another base. The batter is almost always put out, and ...

which Orioles pitcher

Pete Richert Peter Gerard Richert (born October 29, 1939) is an American former professional baseball player. He played in Major League Baseball as a left-handed pitcher with the Los Angeles Dodgers (1962–64, 1972–73), Washington Senators (1965–67), Bal ...

fielded; however, Richert's throw to first base hit Martin on the wrist and the ball ricocheted into right field, allowing Mets baserunner

Rod Gaspar Rodney Earl Gaspar (born April 3, 1946 in Long Beach, California, United States) is a former Major League Baseball outfielder. A switch hitter, Gaspar played for the New York Mets (1969–70) and San Diego Padres (1971, 1974). A former player a ...

to score the winning run from second base. The Orioles protested vehemently, but although replays showed Martin ran inside the first base line, umpires ruled the play valid and no interference was called. The win gave the "Miracle Mets" a 3–1 lead in the series, and they closed out their championship season with a win the next day. An alleged offensive interference occurred in the third game of the

1975 World Series The 1975 World Series was the championship series of Major League Baseball's (MLB) 1975 season. The 72nd edition of the World Series, it was a best-of-seven playoff played between the American League (AL) champion Boston Red Sox and the Natio ...

. With a runner on first, Cincinnati Reds player

Ed Armbrister Edison Rosanda Armbrister (July 4, 1948 – March 17, 2021) was a Bahamian professional baseball player. He played in Major League Baseball as an outfielder from 1973 to 1977 for the Cincinnati Reds. Armbrister was a utility player for the Reds t ...

laid down a sacrifice bunt. Red Sox catcher

Carlton Fisk Carlton Ernest Fisk (born December 26, 1947), nicknamed "Pudge" and "The Commander", is an American former professional baseball player. He played in Major League Baseball as a catcher from 1969 to 1993 for the Boston Red Sox (1969, 1971–1980) a ...

attempted to field the ball and throw to second base and get the lead runner out. However, Armbrister did not immediately run to first base but instead stood essentially still in the vicinity of home plate, forcing Fisk to jump into him in order to make the throw. As a result, Fisk's throw went into center field, and the Reds ended up with runners on first and third with no outs. The Red Sox protested, saying that Armbrister interfered, but home plate umpire

Larry Barnett Lawrence Robert Barnett (born January 3, 1945) is an American former umpire in Major League Baseball who worked in the American League from 1969 to 1999 before becoming the major leagues' supervisor of umpires from 2000 to 2001. He is perhaps wel ...

refused to change the call. The rules at the time did not mention a batter-runner/catcher collision, but the official interpretation issued to the umpires did; there is no violation on such unintentional contact. The Red Sox lost the game, and the series.

Umpire's interference

It is ''umpire's interference'' when the

umpire An umpire is an official in a variety of sports and competition, responsible for enforcing the rules of the sport, including sportsmanship decisions such as ejection. The term derives from the Old French nonper, ''non'', "not" and ''per'', ...

hinders a catcher's attempt to throw anywhere. In this case, if the catcher's direct throw retires a runner the play stands. If not, the ball is dead and all runners must return to the bases they had most recently touched before the catcher's throw. It is also umpire's interference when an umpire is struck by a fair batted ball before it touches a fielder including the

pitcher In baseball, the pitcher is the player who throws ("pitches") the baseball from the pitcher's mound toward the catcher to begin each play, with the goal of retiring a batter, who attempts to either make contact with the pitched ball or draw ...

or passes near an infielder other than the pitcher. This can occur either because an umpire is inside the diamond or because the ball crosses 1st or 3rd base in fair territory then hooks or slices foul into the umpire positioned just outside the line behind the bag. In this case, the ball is dead, the batter is awarded first base, and all other runners advance only if forced. A common example is when a batter hits a fair ball down the first base line so hard that the first base umpire can't avoid it. Even though the hit would have surely been a bases-clearing double or triple without the interference, it is only a single and runners advance no more than one base. This happened in the 1989 All-Star Game when the

Pittsburgh Pirates The Pittsburgh Pirates are an American professional baseball team based in Pittsburgh. The Pirates compete in Major League Baseball (MLB) as a member club of the National League (NL) Central division. Founded as part of the American Associati ...

Bobby Bonilla Roberto Martin Antonio Bonilla (, born February 23, 1963) is an American former professional baseball third baseman and outfielder who played in Major League Baseball (MLB) from 1986 to 2001. Bonilla was one of the Major League's best batters a ...

led off the 9th with a scorching grounder that would have been an easy double, but it hit first base umpire

Bob Engel Robert Allen Engel (October 11, 1933 – March 5, 2018) was an American professional baseball umpire who worked in the National League from 1965 to 1990. Engel wore uniform number 5 for most of his career. A former president of the umpires union ...

in the legs as he tried to jump out of the way. Instead of being in scoring position down 5–3, Bonilla was forced out at 2nd the next play and the game ended on a double play.

Catcher's interference

''Catcher's interference'' is called when the

catcher Catcher is a Baseball positions, position in baseball and softball. When a Batter (baseball), batter takes their at bat, turn to hit, the catcher crouches behind home plate, in front of the (home plate, home) Umpire (baseball), umpire, and recei ...

physically hinders the batter's opportunity to legally swing at a pitched ball. This occurs most often when a catcher

squats Squat, squatter or squatting may refer to: Body position * Squatting position, a sitting position where one's knees are folded with heels touching one's buttocks or back of the thighs * Squat (exercise), a lower-body exercise in strength and co ...

too close to home plate, so that the batter's bat touches the catcher's mitt as the batter swings. This is most likely to happen on attempted steals where the catcher is anxious to catch the ball as soon as possible and may move his entire body or mitt forward a bit. It also more commonly happens to hitters who let pitches get deeper and take later swings, such as

Jacoby Ellsbury Jacoby McCabe Ellsbury ( ; born September 11, 1983) is an American former professional baseball center fielder. He played in Major League Baseball (MLB) for the Boston Red Sox from 2007 through 2013 and then played for the New York Yankees from 2 ...

, who holds the record for the most times interfered with by a catcher in both a single season and his career. In this case, play continues, and after continuous playing action ceases, the umpire will call time. The penalty here is that the batter is awarded first base, any runner attempting to steal is awarded that base, and all other runners advance only if forced. Additionally, the catcher is charged with an

error An error (from the Latin ''error'', meaning "wandering") is an action which is inaccurate or incorrect. In some usages, an error is synonymous with a mistake. The etymology derives from the Latin term 'errare', meaning 'to stray'. In statistics ...

and the batter is not charged with an at-bat. However, if the actual playing result is more advantageous than the penalty, the offense may elect to ignore the infraction (e.g., if the batter-runner reaches first safely and all other runners advance at least one base, catcher's interference is ignored by rule, or if a run scores even though the play resulted in an out the offense may elect to take the play versus the penalty by appealing to the calling Umpire). Under high school (NFHS) rules only, catcher's interference is instead called ''catcher's obstruction''.

Spectator interference

When a spectator or other person not associated with one of the teams (including such staff as bat and ball boys/girls) alters play in progress, it is ''spectator interference'', colloquially called ''fan interference''. It is worth noting that the latter is also (incorrectly) used to refer to fan obstruction – for instance a spectator running onto the field and tackling a baserunner. The ball becomes dead, and the umpire will award any bases or charge any outs that, in his judgment, would have occurred without the interference. Such interference often occurs when a spectator in the first row of seats reaches onto the field to attempt to grab a fair or foul fly ball. If the umpire judges that the fielder could have caught the ball over the field (i.e., the ball would have not crossed over the plane of the wall), he will rule the batter out on spectator interference. Also, the spectator who commits interference is usually ejected from the stadium. Note that spectators are allowed to catch a ball that is in play when the ball has broken the plane of the spectators' side of the wall. The area where both fielders and spectators are legally allowed to catch the ball is colloquially called ''no man's land''. Umpires typically grab their wrist above their head to signal that spectator interference has occurred.

Cases of possible spectator interference

*On October 9, 1996,

Jeffrey Maier Jeffrey Maier (born 1983) is an American baseball fan who received media attention for an incident in which he was involved as a 12-year-old at a baseball game. During Game 1 of the 1996 American League Championship Series between the New York Ya ...

became well loved in New York but hated in Baltimore over spectator interference that was not called by the umpire. In the eighth inning of Game 1 of the

American League Championship Series The American League Championship Series (ALCS) is a best-of-seven playoff and one of two League Championship Series comprising the penultimate round of Major League Baseball's (MLB) postseason. It is contested by the two winners of the American ...

, with the Yankees trailing 4–3,

Derek Jeter Derek Sanderson Jeter ( ; born June 26, 1974) is an American former professional baseball shortstop, businessman, and baseball executive. As a player, Jeter spent his entire 20-year Major League Baseball (MLB) career with the New York Yankees ...

, the Yankee shortstop, hit a fly to the right field wall. Oriole right fielder

Tony Tarasco Anthony Giacinto Tarasco (born December 9, 1970) is an American professional baseball outfielder and coach. He played in the major leagues for the Atlanta Braves, Montreal Expos, Baltimore Orioles, Cincinnati Reds, and New York Yankees between 199 ...

backtracked and positioned himself to catch Jeter's fly ball just short of the wall. Maier, a 12-year-old spectator seated in the bleachers, reached out to catch the ball, and deflected it away from Tarasco and over the fence. Umpire Rich Garcia ruled the play a home run rather than calling Jeter out on spectator interference or awarding him a double. Garcia later said he believed the ball was uncatchable, but video of the play shows the ball was touched in the field of play, although Garcia may not have been in position to see the interference. Maier's interference and Garcia's call resulted in a game-tying home run for Jeter. The Yankees won the game in extra innings and prevailed in the series in five games. *On July 6, 2010, the

Seattle Mariners The Seattle Mariners are an American professional baseball team based in Seattle. They compete in Major League Baseball (MLB) as a member club of the American League (AL) American League West, West division. The team joined the American League ...

trailed the visiting

Kansas City Royals The Kansas City Royals are an American professional baseball team based in Kansas City, Missouri. The Royals compete in Major League Baseball (MLB) as a member club of the American League (AL) Central division. The team was founded as an expans ...

3–2 in the 8th inning of a game. With runner

Ichiro Suzuki , also known mononymously as , is a Japanese former professional baseball outfielder who played professionally for 28 seasons. He played nine years of his career with the Orix BlueWave of Nippon Professional Baseball (NPB), where he began his ...

on first base for the Mariners, Mariners

designated hitter The designated hitter (DH) is a baseball player who bats in place of another position player, most commonly the pitcher. The position is authorized by Major League Baseball Rule 5.11. It was adopted by the American League in 1973 and later by th ...

Russell Branyan Russell Oles Branyan (born December 19, 1975) is an American former professional baseball first baseman, who played in Major League Baseball (MLB) for the Cleveland Indians (two occasions), Cincinnati Reds, Milwaukee Brewers (two occasions), Tam ...

hit a double down the right field line. As Royals outfielder

David DeJesus David Christopher DeJesus (; born December 20, 1979) is an American former professional baseball outfielder. He played in Major League Baseball (MLB) for the Kansas City Royals, Oakland Athletics, Chicago Cubs, Washington Nationals, Tampa Bay ...

attempted to make a play on the ball, a young fan reached onto the field and picked up the ball. The play was ruled an automatic double, and the umpires ruled that Branyan would take second base and that Ichiro would take third base, denying him a potential opportunity to score on the play. Both Ichiro and Branyan would be stranded on the bases, and the Royals held on for the 3–2 victory. *On October 19, 2010, in the second inning of Game 4 of the

, with no score, Yankees player

Robinson Canó Robinson José Canó Mercedes (; born October 22, 1982) is a Dominican-American professional baseball second baseman who is currently a free agent. He previously played in MLB for the New York Yankees, Seattle Mariners, New York Mets, San Dieg ...

hit a fly to the right field wall. Rangers right fielder

Nelson Cruz Nelson Ramón Cruz Martínez Jr. (born July 1, 1980) is a Dominican-American professional baseball designated hitter and right fielder who is currently a free agent. He has played in Major League Baseball (MLB) for the Milwaukee Brewers, Texas ...

backtracked and positioned himself to jump in the air and attempt to catch Cano's fly ball at the wall. Jared Macchirole, a 20-year-old spectator seated in the bleachers, reached out to catch the ball, and in doing so, made contact with the glove of Cruz, ending his upward momentum, and ensuring that Cruz would not catch the ball, that did reach the seats. Right Field

Umpire An umpire is an official in a variety of sports and competition, responsible for enforcing the rules of the sport, including sportsmanship decisions such as ejection. The term derives from the Old French nonper, ''non'', "not" and ''per'', ...

Jim Reynolds James Norris Reynolds IV (born December 22, 1968) is a former American Major League Baseball umpire. He joined the major league staff in and was promoted to crew chief for the 2020 season. Reynolds wore uniform number 77. He retired following t ...

ruled the play a home run rather than calling for Instant Replay review to determine whether spectator interference had occurred as specified by MLB's new rule regarding

Instant Replay Instant replay or action replay is a video reproduction of something that recently occurred which was both shot and broadcast live. The video, having already been shown live, is replayed in order for viewers to see again and analyze what had j ...

. The potential interference and umpire's call resulted in a solo home run for Cano, the Yankees taking a 1–0 lead at the time. *On September 4, 2011,

Hunter Pence Hunter Andrew Pence (born April 13, 1983), nicknamed "The Reverend", is an American former professional baseball right fielder and designated hitter. He played in Major League Baseball (MLB) for the Houston Astros, Philadelphia Phillies, San Fra ...

of the Philadelphia

Phillies The Philadelphia Phillies are an American professional baseball team based in Philadelphia. They compete in Major League Baseball (MLB) as a member of the National League (NL) East division. Since 2004, the team's home stadium has been Citizen ...

hit a fly ball to deep right field. Originally ruled a live ball, instant replay showed Marlins right fielder Bryan Petersen was interfered with by multiple fans during his opportunity to catch a ball, under Rule 2.00 INTERFERENCE (d)(1) and (2). After instant replay review, first base umpire and crew chief Joe West ruled Pence out under the provisions of spectator interference, Rule 3.16, and sent Phillies baserunner

Ryan Howard Ryan James Howard (born November 19, 1979), nicknamed "the Big Piece", is an American former professional baseball first baseman. Howard spent his entire Major League Baseball (MLB) career playing for the Philadelphia Phillies, from to . He is ...

back to first base. Phillies Manager

Charlie Manuel Charles Fuqua Manuel Jr. (born January 4, 1944), is an American former professional baseball player, coach, and manager. During his playing career, he appeared over parts of six Major League Baseball seasons for the Minnesota Twins and Los Angel ...

was ejected and elected to play the game under protest. On September 7, 2011, MLB VP of Baseball Operations Joe Torre denied the first ever protest associated with authorized instant replay usage. *On June 8, 2014, Brian Roberts of the New York Yankees was at bat against the Royals at Kauffman Stadium in the top of the 4th inning. He hit a ball down the first base line that the first base umpire ruled fair. Thinking it was a foul ball, a ball person in foul territory in right field picked the ball up and gave it to a fan. The play was ruled dead and Brian Roberts was awarded a double. However, the Yankees did not score that inning and they lost the game 2–1. *On August 17, 2018, during the fifth inning of a game between the San Diego Padres and Arizona Diamondbacks, Padres batter Eric Hosmer hit a fly ball to deep left center. Diamondbacks outfielder Jon Jay moved to the wall in an attempt to catch it, but a fan seated in the front row reached over the wall with his cup of beer. The ball struck the cup and bounced over the wall into the outfield seats; the play was initially ruled a home run, then reviewed at the Diamondbacks' request. Fan interference was not called, and the play was allowed to stand. The Padres ultimately lost the game, 9–4. *On October 17, 2018, during the fourth game of the

2018 American League Championship Series The 2018 American League Championship Series was a best-of-seven series pitting the defending World Series champion Houston Astros against the Boston Red Sox, for the American League (AL) pennant and the right to play in the 2018 World Series. ...

Houston Astros The Houston Astros are an American professional baseball team based in Houston, Texas. The Astros compete in Major League Baseball (MLB) as a member club of the American League (AL) West division, having moved to the division in 2013 after ...

batter José Altuve hit a potential two-run homer in the bottom of the first inning. Although the ball went into the stands despite Boston Red Sox right fielder Mookie Betts' leaping attempt to catch it at the wall, Altuve was ruled out due to fan interference, and the call stood after being reviewed on video. Boston ultimately won the game 8-6 and would go on to win both the ALCS and the

2018 World Series The 2018 World Series was the championship series of Major League Baseball's 2018 season. The 114th edition of the World Series, it was a best-of-seven playoff played between the American League (AL) champion Boston Red Sox and the National Lea ...

Common misconceptions

When a fielder hinders a baserunner, the situation is called obstruction, not interference. Baseball commentators will often mistakenly refer to obstruction as interference. Not all physical contact in baseball is interference. Accidental contact that has little or no effect on play will usually be ignored; physical contact must result in an advantageous situation for the offense to be considered offensive interference. Nor must physical contact occur for interference to be called; a runner may interfere with a fielder simply by hindering the fielder's ability to attempt to make a play on a batted ball. If a baserunner is hit by a fair batted ball while standing on a base, the runner is out, unless the ball has already passed an infielder or the infield fly rule has been declared. The base is not a sanctuary. However, being in contact with a base may protect a baserunner from being called out for interference in the case of a fielder attempting to field a batted ball. Per MLB rules: "If runner has contact with a legally occupied base when he hinders fielder who is attempting to make a play on a batted ball he shall not be called out unless, in the umpire’s judgment, such hindrance, whether it occurs on fair or foul territory, is intentional. If the umpire declares the hindrance intentional, the following penalty shall apply: With less than two out, the umpire shall declare both the runner and batter out. With two out, the umpire shall declare the batter out." Per Little League rules:Little League Umpire School Rules Instruction Manual (RIM). PREPARED FOR THE 2010 REGIONAL LITTLE LEAGUE UMPIRE SCHOOLS 7.08—Any runner is out when – (b) intentionally interferes with a thrown ball; or hinders a fielder attempting to make a play on a batted ball. (NOTE: A runner who is adjudged to have hindered a fielder who is attempting to make a play on a batted ball is out whether it was intentional or not.)

References

{{DEFAULTSORT:Interference (Baseball) Baseball rules Catching statistics