400m is another version of 100m but with a longer distance and they are all lined up and they start off by having a player in front. 400m means 400 meter and it is also seeing who can catch up to each other and also the Fastest Runner. It is only in Mario and Sonic at the Olympic Games.
- Knuckles: Finish in 2nd Place
- Bowser: Overcome a 1 second handicap to win
- Sonic: Beat Mario in his fastest speed
- Dr. Eggman: Keep your stamina full up to the goal and finish in 1st place