Sorry mate
TD can't do it, its been asked for before.
Think its on coreys list to do but not near the top.
Someone might have a xl sheet or something,
I thought of using chips, but it gets complicated.
Thought of say the head prize was £10 then each player would get 4 x chips each worth £2-50
the person who knocks him out keeps 2 chips ans adds 2 chips on to his head.
So in effect player always keeps 50% and passes 50% on, gets hard when you have uneven chips.
Hopefully someone on here can sort an xl sheet out for us.