A dollars per hour played stat would fit nicely with the theme of pro sports and absurdity (I'm sure many players make over $12,000 per hour), and it would be a better measurement of skill than the current cumulative leaderboards that can be climbed by playing for long enough. Of course, if time played isn't already tracked, then this wouldn't be possible. EDIT: I should point out that I was thinking this would be average $/h over your career, similar to how K/D ratio works.
I'd like this, Every week your most amount of money gained in an hour is saved on a leaderboard and cleared each week. Probably separate between blitz and crossfire mode.