I personally think there should be a champions mode category for all the fights

I'm pretty sure that would only affect TD Sandman

So the way champions mode with the leaderboard works is that if a fight can be beaten in a faster time using champions mode than without, it's already used for the boards. So fights such as TD King Hippo and Contender Aran Ryan already have champions mode used in their WR's. For other fights that don't use champions mode (Like both Glass Joe's), it's because their fastest strategy doesn't require it. So it wouldn't actually add anything for most fights since they don't require getting knocked down/hit. And if champions mode makes a fight faster, it's already used and doesn't need a separate category.