Data Store

local ds = game:GetService("DataStoreService"):GetGlobalDataStore()
game.Players.PlayerAdded:Connect(function(plr)
	wait()
	local plrkey = "id_"..plr.UserId
	local save1 = plr.leaderstats.Wins

	local Saved = ds:GetAsync(plrkey)
	if Saved then
		save1.Value = Saved[1]
	else
		local NumberForSaving = {save1.Value}
		ds:GetAsync(plrkey, NumberForSaving)
	end
end)

game.Players.PlayerRemoving:Connect(function(plr)
	ds:SetAsync("id_"..plr.UserId, {plr.leaderstats.Wins.Value})
end)