In my opinion, mostly for this time if you noticed on LB most of them in the LB are much popular already on running each categories:

Well, we say twinks can run more faster on hauntlet run etc. cause more easy mobs for them especially when they got the good gears but there's a con on it. Twinks can't do elite right? . For endgamers, my thoughts who will win on endgamers im pretty sure most of them got already the mythic set with arcane weapon & pet. How about the normal people (people cant buy plat, people doesnt have gold to buy the best elite gears or mythic/arcane) who wants to run the timed run challenges probably 25% chance or not at all?. Probably have a chance wow a "Chance". But how? Well if your lucky you have a friend with full mythic gears, arcane pets/weapon and not just one friend but 3 friend with those gears. But still if you have those friends mostly important part of each run "THE STRATEGY & TEAMWORK OF EACH OTHERS"

Oh well, GOODLUCK to all the people to reach the first place on each run categories.

---------------------------------------------------------------------------

For you, who do you think will managed to win in timed run?