Hello there,
I'm a speedrunner of Factorio and we have a few multiplayer categories (any% MP, Default Settings MP and New Game+ Massive MP) but those leaderboards are getting quite chaotic because we have a only few teams running in these categories, but they often don't play with the exact same players each time, as they all have substitute players. For instance, in the category any% MP, the 1st, 3rd, 4th, 5th, 6th and 10th places are actually held by the same team (the team Waterbus), but with 1 or 2 different players each time. In the DS MP category, from the 1st to the 12th place, there are actually only 3 teams and since some players are in multiple teams (they left one to go to another), it's really hard to know which team is which.
To solve this issue (that is I think also problematic in some other games), my suggestion is to add the possibility to add in some categories another entry in run submissions which would be named "Team name", in addiction to the player list and then show the team names instead of the player lists in the leaderboard.
1h48.06 with 20-25min of waiting for resources. I don't how I made a design that bad...