I don't know how many leagues are there, but finding leagues is nearly impossible with the filter option. Always the same 6 leagues are suggested when you search by hour, and the filter doesn't really work, as searching for 22:00 will show races at 21:00, 22:00, 23:30, 21:30, 21:00 and 23:30.
Is there really a single league in all servers that runs at 22:00 ????
Could we not also search by race length and race speed (ie: 2x, 1.5x, etc?)
It'd be good to understand how it works so we can find leagues that we are interested in rather than being offered a random group that remains fixed for each hour we search, as it seems to be the case