<P> Tag plays can also be utilized in other cases when the runner is in jeopardy . A baserunner is in jeopardy when: </P> <Ol> <Li> he is not touching a base (excluding overrunning of first base or when advancing to an awarded base, such as on a base on balls); </Li> <Li> he is touching a base he has been forced to vacate because the batter became a baserunner (a forced runner) </Li> <Li> he has not tagged up on a caught fly ball; </Li> <Li> he failed to touch a base when he last passed it, or to touch them in order; or </Li> <Li> he is touching a base that a preceding baserunner is also touching, except when forced to vacate the previous base because the batter became a baserunner </Li> </Ol> <Li> he is not touching a base (excluding overrunning of first base or when advancing to an awarded base, such as on a base on balls); </Li> <Li> he is touching a base he has been forced to vacate because the batter became a baserunner (a forced runner) </Li>

When do you have to tag a base runner