Singles: 1 v 1 — most common in PPA Tour individual events; Doubles: 2 v 2 — standard pro doubles + mixed doubles; MLP Team format: 4-player teams (2M + 2W) play men's doubles, women's doubles, and 2 mixed doubles per match; tiebreaker dreambreaker singles
Why people argue about this
People often assume that Pro Pickleball's switch from PPA and MLP rankings to a UPA-A points system means it's no longer compatible with these other ranking systems, but actually, players can still participate in both systems if they choose to do so, just under different scoring structures.