A game we play as a team is holding a plank on a line at the end of the floor, while the coach calls out different commands to do in the plank (variations of push-ups, side plank, etc) and every so often they will give the command to run. When the coach says run, you sprint to the end of the floor, run back, and finish back in the plank. The first person to end in the plank "wins" that round. It's a pretty fun conditioning game that is fairly hard at the same time.