On some matches you may see the spread expressed as "Pick" or "PK". This is also referred to casually as "a Pick'Em".
This means the spread is 0 for each team, no points are in effect.
If you bet on the pk or -0 spread on a team and that team wins the match 1 - 0 (or any other score) your wager is a winner.
If the match ends in a draw wagers on spread 0 (pk) will be refunded.