The NFL Rule Book is over pages. Rather have just the football rules you need to. The basic rules of American Football for novices. The purpose of American football is to move the ball towards the opposition's end zone and ultimately into. rules governing the playing of professional football that are in effect for all rules contained in this book apply uniformly to both the American. Each time the offense gets the ball, it has four downs, or chances, in which to gain 10 yards. Back to Sports Back to Football The rules of football can be complex and vary depending on the level of play. It decides who will receive the ball first and which side of the pitch they will start. The size of the field depends on the type of football being played, though most varieties play on a field measuring yards long by 53 yards wide. Arena Football 1 formerly the AFL and another Arena football league is a curious cousin of the NFL. The 11 men on the defensive team all work together pferde spiele de keep the offense from advancing toward the defense's end zone. Over time comes into play if the points get tied.