We play a lot of office table tennis and even have occasional tournaments with online stats, a trophy, live tweeting, etc. We're looking at rolling our own leaderboard that calculates a running champion (rather than event-based champ) and I'd have considered a once-off fee to use this, but closed the tab at $15/mo. And that's even knowing it would probably take one of us a few hours of stuffing around to build something.

Hope that feedback is useful.