The 2012–13 Big 12 men's basketball season began with practices in October 2012, followed by the start of the regular-season in November. Conference play began in early January 2013 and concluded in March with the

2013 Big 12 Men's Basketball Tournament The 2013 Phillips 66 Big 12 Men's Basketball Championship was held at the Sprint Center in Kansas City, Missouri from March 13–16, 2013. This tournament marked the debut of TCU and West Virginia in the event. First round games were aired on ...

at the

Sprint Center T-Mobile Center (formerly Sprint Center) is a multi-purpose arena in downtown Kansas City, Missouri. It is located at the intersection of 14th Street and Grand Boulevard on the east side of the Power & Light District. It has effectively becom ...

Kansas City The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With and a population of more ...

. This was the first season in the

Big 12 The Big 12 Conference is a college athletic conference headquartered in Irving, Texas, USA. It consists of ten full-member universities. It is a member of Division I of the National Collegiate Athletic Association (NCAA) for all sports. Its fo ...

for two former Mountain West and Big East teams, as the

TCU Horned Frogs The TCU Horned Frogs are the athletic teams that represent Texas Christian University. The 18 varsity teams participate in NCAA Division I and in the Football Bowl Subdivision (FBS) for football, competing mostly in the Big 12 Conference. The sc ...

and the

West Virginia Mountaineers The West Virginia Mountaineers are the athletic teams that represent West Virginia University, an American university located in Morgantown, West Virginia. The school is a member of National Collegiate Athletic Association Division I. The Moun ...

, respectively, played their first seasons in the conference.

Preseason

''() first place votes'' Pre-Season All-Big 12 Teams *Player of the Year: Pierre Jackson, Baylor *Newcomer of the Year:

Amath M'Baye Amadou-Amath M'Baye (born 14 December 1989) is a French professional basketball player for Anadolu Efes of the Basketbol Süper Ligi (BSL) and EuroLeague. Standing at , he plays at the power forward position. Career In the first two years as an ...

, Oklahoma *Freshman of the Year:

Marcus Smart Marcus Osmond Smart (born March 6, 1994) is an American professional basketball player for the Boston Celtics of the National Basketball Association (NBA). He played college basketball for the Oklahoma State Cowboys. Smart was drafted with the ...

, Oklahoma State

Rankings

Conference Schedules

Conference matrix

This table summarizes the head-to-head results between teams in conference play. (x) indicates games remaining this season.

Baylor

, - !colspan=12 style="background:#003015; color:#FECB00;", Big 12 Regular Season , - !colspan=12 style="text-align: center; background:#003015", 2013 Big 12 Tournament , - , colspan="12" , *Non-Conference Game. Rankings from

AP Poll The Associated Press poll (AP poll) provides weekly rankings of the top 25 NCAA teams in one of three Division I college sports: football, men's basketball and women's basketball. The rankings are compiled by polling 62 sportswriters and broadca ...