Ask HN: Good real world match making software?

I recently joined a corn-hole league, and they had carefully made nice schedules for all ~25+ teams spread across 6 sets of boards, once a few teams didn't show up it quickly devolved into multiple paper pages with a bunch of scribbled notes and changes. Everyone had to ask the one person who held the magic clipboard what was actually happening.

So naturally, I created a basic data model for what we needed, but then stopped myself and thought, someone has to have already made this. However, searching for 'game match maker' comes up with weird dating sims, and 'roster' on github turns up nothing relevant. So this seems to be a strangely hard to google problem.

Before I go typing meteor create cornholers.io or anything, I thought I'd ask if anyone had any experience with something that could save me a bunch of time.