Is there any way of getting the parent of a part in a region3?

I have a script that detects parts in a region3, and I get the parent of a part (the player model) and put them in a table. But, on the removal script, I check if the player is in the region3 part's table, but it's a table with the parts, not the player model. So I wanted to know if there is a way of getting the part's parent when getting the parts in the region3. This is my script:

local RaceFolder = script.Parent.Parent
local RaceLocation = RaceFolder.Parts.RaceLocation
local region3 = Region3.new(RaceLocation.Position-(RaceLocation.Size/2),
	RaceLocation.Position+(RaceLocation.Size/2)
)

local function findIndex(table,value)
	for i,v in pairs(table) do
		if v == value then
			return i
		end
	end
end


local tableRacers = {}
local tableInRaceLocation = {}


local function PlayersInRaceLocation(player)
	
	local whitelist = game.Workspace:WaitForChild(player.Name):GetChildren()
	local InRegion = game.Workspace:FindPartsInRegion3WithWhiteList(region3,whitelist,math.huge)
	for i,v in pairs(InRegion) do
		print(v)
		if v.Parent.Name == player.Name then
			if not table.find(tableInRaceLocation,player) and table.find(tableRacers,player) then
				print("Added")
				table.insert(tableInRaceLocation,#tableInRaceLocation+1,player)
			end
		end
	end
	for i,v in pairs(tableInRaceLocation) do
		if not table.find(InRegion,v) and table.find(tableRacers,v) then
			table.remove(tableInRaceLocation,findIndex(tableInRaceLocation,v))
			print("Removed!")
		end
	end
end

game.Players.PlayerAdded:Connect(function(player)
	local folder = Instance.new("Folder")
	folder.Name = "leaderstats"
	folder.Parent = player
	local cash = Instance.new("IntValue")
	cash.Name = "Cash"
	cash.Parent = folder
	
	while true do
		wait()
		PlayersInRaceLocation(player)
	end
end)