Need help with my king of the hill script

Hello, I’m trying to make a king of the hill script. If there is one player on the hill, he gets the winner value. If there are multiple people, the hill is conflicted. I have finished the part where the player gets added into the table when he is inside the region3 area. However I don’t know how to remove the player from the table when he is outside the region3. I found some research on king of the hill scripts but not with a region3.

script.

local zone = game.Workspace.Turf:WaitForChild("TurfPoint")
local pos1 = zone.Position - (zone.Size/2)
local pos2 = zone.Position + (zone.Size/2)
local region = Region3.new(pos1,pos2)
local leader = zone:WaitForChild("Leader")
local inHill = {}

while true do wait(0.1)
	print(#inHill) --printing the numbers inside the Inhill table
	local partsInRegion = workspace:FindPartsInRegion3(region,nil,1000)
	
	for _, part in pairs(partsInRegion) do	
		
		if #inHill == 0 and part.Parent:FindFirstChild("Humanoid") then --add the player, because for some reason if there is nothing inside a table, you cant loop through it
			table.insert(inHill,part.Parent) --inserting the player into the table
			
		end
		
		for _, plrs in pairs(inHill) do --looping through the Inhill table to check if the player is already in the table or not, if not, add him.
			if part.Parent:FindFirstChild("Humanoid") and part.Parent ~= plrs then --player is not in the table, so add him.
				table.insert(inHill,part.Parent)
				
			else 
				print(part.Parent.Name.." is already in the inhill table!")	
			end
			
		end
			
        end	
	
end