To score an inning using the international (or California) tiebreaker rule, first identify who the last two batters for the previous inning were by tapping on the team on the bottom bar.

Watch this video for a guide on how to score an international tiebreaker in your baseball or softball game. 

1. Tap 2nd base or any other base you need to add a runner.
2. Tap Place runner on 2nd.
3. Choose the correct baserunner.
4. If you need to adjust the number of outs or count, choose Manual Overrides from the Game Menu.