http://iscoresports.com/

In the Pitchers section of the Game Info Page, can only credit one pitcher with a hold; however, more than one pitcher can actually get credited with a hold during a game. Can iScore be updated to accommodate this?

This has been requested before.

For now, best way to handle is to manually override stats post game. So, even though you only mark on player in game info screen, you can credit the other players in the stats.