there is a lot more runs submitted for all laps than fastest lap. which is a shame because fastest lap is the same thing as all laps but you don't have to do all four of the laps. it gets kind of annoying if I want to beat a run and I have to keep repeating those four laps over and over which usually takes 3~ mins and with fastest lap, some of the times are just under a minute. so, I'm just trying to encourage people to do some fastest lap runs too.

Wouldn't you have to do 4 laps race to get the fastest lap, anyway? :)

well, you don't have to focus for all 4 laps. I'm trying to think of an analogy right now but I can't think of one right now.