There should be a speedrun for "Baseball%." Time starts when you press A for the nearby objects warning or the take a break message. Time ends when the screen reads That's the game, Tie, or Mercy Rule. NOTE: You do not have to win.
Another speedrun could be "Bowling%." You can select as many players as you want, because there would be 4 different leaderboards for 1P, 2P, 3P, or 4P. Time starts when you press A for the nearby objects warning or the take a break message. Time ends when it says Game Finished.
These probably won't be added, but if they could be, that would be nice. Thanks!
Just one match would be kind of arbitrary. And for baseball, depending on who u play can very well influence what time one could get, whether u want to win or lose on purpose.