There are 3 key parts of a successful rundown play:
- Make as few throws as possible
- End at base the rundown started
- Fielders circle back after throw
Why circle back after the throw? If the fielders follow their throw, they are running into the base runner who is moving opposite of where the ball has been thrown. If contact is made, the runner is awarded the next base. To avoid this possibility just have the fielders circle back.