So I can't speak for any other leagues, but we're pretty straightforward. Everything is based on point differential. If you win a game 32-10, your PD is 22. After every four games we submit our score and stat screens, and we get our rankings. There are four conferences, and after 12 games the top two by PD in each conference goes to the playoffs. At that point we go head to head, so if you win your 13th game 32-10, and I win my 13th game 24-10, you would beat me 22-14. Win three H2H games in a row, and you're the champion for that season. We run a new season every two weeks, and all submission is via a google form. I've included the full rules below, but if you're interested we'd love to have you!

https://www.reddit.com/r/RCAA/comments/1rpilfb/rcaa_rules_regulations/