99 yards ... a play that goes from the offensive team's one yard line all the way for a touchdown.
Oregon State quarterback and Heisman Trophy winner Terry Baker has the longest TD, 99 yards in the 1963 Liberty Bowl against Villanova.
for a cowboy its was tony dorsett 99yd run for a td the longest rushing play possible in football is 99 yards...
Johnny Johnson
terry fox
The longest possible run from scrimmage in football is 99 yards. According to Pro-Football-Reference.com, Tony Dorsett had a 99-yard run for the Dallas Cowboys against Minnesota in 1982. The Vikings won the game anyway, 31-27. Ahman Green had a 98-yard run for Greenbay in 2003. Two others have 97-yard runs, and four others have 96-yard runs. ----------
Tom Dempsey and Jason Elam are tied for the longest with 63 yards.
Willie Parker (75 yards)
Ricky watters
Bill Osmanski.
Tony Dorsett. Dorsett had a 99 yard run from scrimmage against the Minnesota Vikings on January 3, 1983.
Joseph Adahai had a 26 yard run
Walter Payton's longest rush from scrimmage was 76 yards against the Denver Broncos on October 16, 1978.