Having long ago built an app that does gamecasts for multiple sports, similar to what you get from ESPN, every sport is completely different. There's almost nothing that matches up, except for the very basic concept of a box score. Even play by play has enough differences to be vastly different

I never once built an app for gamecasts, any sport, but even I do realize that sports are different... Not sure what made you(s) believe I'm suggesting the exact same UI for all the sports.