game.Players:GetChildren() if leaderstats < X?

Create a blank table, and then use Players:GetPlayers() to get the players. and then use the function table.insert in order to insert the table.

local playerTab = {} --Blank for now.
local players = game.Players:GetPlayers()

for i, v in pairs(players) do
	if v.leaderstats.Win.Value > 0 then
		table.insert(players, 1, v.Name) --It'll insert itself first in the list, if you don't want it to do that, then change the number.
	end
end

So that's the basic thing. It'll insert player's names inside the specific table. However, I suggest doing it in alphabetical order. So that you can get the precise names.