RULES IN BRIEF After a fielder catches a batter out, base runners may still attempt to get to next base. If a baserunner strays from her base before a ball hit in the air is caught, the baserunner will be out if the catching fielder or another fielder from a pass can get to that base before the baserunner returns. The batter may run past first base, but can be tagged out with the ball if they run or slide past second or third base. A baserunner can attempt to run on at any the ball is in play even if the ball was not hit by the batter Pitchers must have at least one foot on the ground when pitching Substituted players may re-enter the game but reserves can be called on to substitute only one player. If a batter hits a foul ball, it counts as a strike against her unless she already has two strikes.