Sounds like you might need to roll things into one group and split the game across the two days. With more and more kids pursing two sports these days it is hard to devote a ton of time to just one thing. I know my niece is doing soccer and volleyball right now and my other nieces are doing softball and basketball right now. It keeps them well rounded but it is crazy working their schedules out. Unfortunately the nastiness between the parents and all of that happens in a lot of sports. I wish I could give you some advice on how to fix it.