EDIT: I feel like we need tougher ranks to reach haha. With the way we're doing it now, I'm only 10 wins away from the Legend rank. I'm not that good.
When I "left" PC because another site allowed clans, I ran this clan called the House of Arceus. Basically, implementing your exp system thingy into it would create something like this:
Newbie - 0 wins.
Member 2nd Class - 1 win.
Member 1st Class - 10 wins.
Elite 2nd Class - 30 win.
Elite 1st Class - 50 wins.
Legend - 80 wins.
Makes it tougher to rank up but I feel like it'd be more fitting of the rank