Eight-man football is played on a rectangular field, 40 yards wide (unlike 53 1/3 yards full size field), and 80 or 100 yards in length. As evident from the name, each team has 8 active players on the field at any time. Points are scored in the form of touchdowns, field goals, extra point conversions, and safeties.
In 11-man, a player wearing numbers 1-49 and 80-89 and No. 99 is considered eligible, meaning they can carry the ball from the snap.
The NFHS suggests that all 11-man football fields are 53 1/2 yards wide and 100 yards long, with two 10-yard end zones. Recommended dimensions for 9-man fields are 40 yards wide and 80 yards long, with two 10-yard end zones.
Why is it called 12 Personnel?
Numerical naming When naming a personnel grouping, a specific number system is used to refer to the number of running backs and tight ends on the field. For example, if there are one running back and two tight ends on the field, the grouping is called 12 personnel.