TTRR has the simplest rule ever.
Fastest time wins.
Just touch the F, even by sliding down the map, just touch it. If you stopped the time because you fall but you will be still able to touch the F by sliding, your time is considered valid. Just touch the f@#!ing F.
But most of the time people decide that in leagues if players do 53.00 VS 53.99, it's a draw. And I find this pretty stupid, because it's a race.