In ten-pin bowling games, what is the highest possible score?

seen it done,but could only manage 236 myself.

In my league there is a 300 almost every week.

I never played the game, always wanted to.Have a cousin that use to play her and husband, they invited me and my husband to team up with them, but husband had a bad right hand and wouldn't be able to hold the ball properly. So we never went with them. A game I played on a game app,not the same as the real game.