Nice, @Kamsleo69! I have to admit those 19x19" MultiGP Tiny Whoop class gates are impossibly tiny. Size would make sense for close quarters racing indoors. For outside in a field, maybe less.
Edit: Here’s the link to official MultiGP classes.
30"x30" size makes more sense for racing outside. That’s roughly a bit less than a square foot. Makes a more reasonable target. Certainly for a brushed micro quad, probably for a smallish brushed micro as well.
My suspicion is that the MultiGP micro class gate sizes are designed to force people to slow down. These classes are intended mostly for indoor racing. So you don’t want people to build too much momentum and go AWOL on spectators.
This summer, I plan to make up some micro gates and pylons as well. Should be fun to play around with, in addition to “natural obstacles” like trees and garden furniture.