Went to this event 2 years ago and it was a really fun time and that was a middle of the week evening (Wednesday I think) so should be even better on a Saturday night. Some of these guys are very impressive athletes. I recall someone hitting a bomb in the HR derby over the baseball scoreboard in left (that's with a slow pitched softball and the HR fence halfway into the baseball outfield). And with some of them it's very clear that football is their sport... which is entertaining also.
Random interaction I remember from 2 years ago was talking to one of the beer vendors and she said something like "Redhawks fans don't drink anywhere near this much!" I kinda figured Redhawks fans and Bison fans were the same people but must be something about donning that green and yellow garb that gets our beer drinking appetites going.
Looking forward to the festivities tonight!