A tie is improbable in UFC match-ups. Judges are unlikely to score a round as a draw unless a point has been deducted from the winning fighter. A point is usually deducted for foul play, which is also an unlikely occurrence as a referee is more likely to give more than one warning before deducting points. Because of the unlikelihood of a tie or a draw, most betting platforms do not offer such bets, and if it ends as a draw, the bet becomes voided and you get your money back.