the most familiar of the diversions is Racing. Simply race around the course and beat all your competitors to win, in as fast a time as possible. Yes, even if you beat all the other players, that won't matter if your finishing time is outside the target.
Time is added on for crashing and damaging your vehicle, so bear that in mind!
1 Star: 04:00.000
2 Stars: 03:00.000
3 Stars: 02:15.000
1 Star: 02:00.000
2 Stars: 01:30.000
3 Stars: 01:05.000
1 Star: 02:40.000
2 Stars: 02:00.000
3 Stars: 01:30.000
1 Star: 01:30.000
2 Stars: 01:10.000
3 Stars: 00:45.000
1 Star: 01:30.000
2 Stars: 01:10.000
3 Stars: 00:55.000