Permutation. If any one of your selections fails you still get paid out. Need to lower your stake accordingly. Or look for for a bookie offering some kind of consolation if you miss out by one of your selections.
Lost count of the number of times a mate's come up to me at football and shown me an 'unlucky' betting slip where they got 7 out of 8 right, or 9 out of 10 right and one team's let them down. To which my reply is always meh! :shrug: Should have done the 7 from 8 perm or the 9 from 10 perm.
Do...