Among Us' Freeplay mode is a single player mode meant for you to practice your skills but the main game would not qualify for speedruns because of the multiplayer factor. This is highly similar to Rocket league (which is on speedrun.com) where the main game is PVP but there are speedruns for training. Also similar to minecraft where the game has an end screen which goes right back to gameplay this thread describes this as follows: 'this is an endless game mode with no defined ending' id recommend looking more into the freeplay part instead of brushing it off with a half of a sentence. It is very fun to speedrun and has lots of potential. Examples of freeplay speedruns: and