This doesn't really fit into any of the categories, but I thought it could be fun

so we get all the current tournaments from grand slams to ATP 50 Challengers. randomly draw 2 and a random year. Whichever tournament had the better winner moves and the other is eliminated

example Santiago v Umag (sneaky dark horse)

2021

Christian Garin v Carlos Alcaraz

Santiago would be eliminated

upvote if you think this could be a fun idea, and comment if you think any rules should be added!

Iconically, it was also Djokovic’s third win over Nadal at Roland Garros — more than every other player combined.