The halfback in
Canadian football
Canadian football () is a team sport, sport played in Canada in which two teams of 12 players each compete for territorial control of a field of play long and wide attempting to advance a pointed oval-shaped ball into the opposing team's sco ...
, and most commonly the
Canadian Football League
The Canadian Football League (CFL; french: Ligue canadienne de football—LCF) is a professional sports league in Canada. The CFL is the highest level of competition in Canadian football. The league consists of nine teams, each located in a ci ...
, currently refers to the
defensive back
In gridiron football, defensive backs (DBs), also called the secondary, are the players on the defensive side of the ball who play farthest back from the line of scrimmage. They are distinguished from the other two sets of defensive players, the ...
rather than the
running back
A running back (RB) is a member of the offensive backfield in gridiron football. The primary roles of a running back are to receive American football plays#Offensive terminology, handoffs from the quarterback to Rush (American football)#Offen ...
, as in
American football
American football (referred to simply as football in the United States and Canada), also known as gridiron, is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense, the team with ...
. The defensive halfback lines up inside covering the
slotback
Slotback, sometimes referred to as an A-back or slot receiver, is a position in gridiron football. The "slot" is the area between the last offensive lineman on either side of the center and the wide receiver on that side. A player who lines up ...
. They are usually slightly larger than the
cornerback
A cornerback (CB) is a member of the defensive backfield or secondary in gridiron football. Cornerbacks cover receivers most of the time, but also blitz and defend against such offensive running plays as sweeps and reverses. They create tur ...
to assist the
linebacker
Linebacker (LB) is a playing position in gridiron football. Linebackers are members of the defensive team, and line up three to five yards behind the line of scrimmage and the defensive linemen. They are the "middle ground" of defenders, p ...
s in stopping the run. They can also be seen backing off the line early, to counter the forward
motion
In physics, motion is the phenomenon in which an object changes its position with respect to time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed and frame of reference to an observer and mea ...
of a slotback, which is allowed before the snap in the CFL.
The cause of the difference in naming between the two positions between the American and Canadian game, which otherwise uses the same names for positions, stems from the early
history of the game. In both games, the early formations featured identical offensive and defensive formations, with seven down linemen and four players (five in Canada) in the backfield. Thus, both the offense ''and'' defense had quarterbacks, halfbacks and fullbacks. Over the course of the 20th century, the American and Canadian games both placed an increased emphasis on
forward pass
In several forms of football, a forward pass is the throwing of the ball in the direction in which the offensive team is trying to move, towards the defensive team's goal line. The forward pass is one of the main distinguishers between gridiron ...
ing, resulting in both offensive and defensive formations spreading out and morphing into modern
formations. Furthermore, the abolition of the
one-platoon system
The one-platoon system, also known as iron man football, is a platoon system in American football where players play on both offense and defense. It was the result of smaller roster sizes in the early days of the game and rules that limited player ...
in the 1940s led to a tendency for position names being used on only one side of the ball. The American game, which still held a significant running component (modern American football is more balanced between both running and passing), kept two running backs, which led to the retention of the "halfback" and "fullback" identifications on that side of the ball.
In Canadian football, however, passing was (and still is) a greater portion of the game (due in part to the larger field and one less
down in that game) and only one running back was regularly used, leading to the offensive distinction between halfback and fullback eventually becoming obsolete. Historically, the offensive halfback was similar to a
slotback
Slotback, sometimes referred to as an A-back or slot receiver, is a position in gridiron football. The "slot" is the area between the last offensive lineman on either side of the center and the wide receiver on that side. A player who lines up ...
and lined up off the tight end, running sweeps, pass patterns and performing blocking duties, but could also run out of the backfield in front of the fullback, much like a standard running back in American football.
The rough equivalents of the halfback position in American football are the
strong safety
Safety is a position in gridiron football on the defense. The safeties are defensive backs who line up ten to fifteen yards from the line of scrimmage. There are two variations of the position: the free safety and the strong safety. Their dut ...
and
nickelback
Nickelback is a Canadian Rock music, rock band formed in 1995 in Hanna, Alberta. It is composed of guitarist and lead vocalist Chad Kroeger, guitarist, keyboardist and backing vocalist Ryan Peake, bassist Mike Kroeger, and drummer Daniel Adai ...
.
Canadian football terminology
{{Canadianfootball-stub