Well, if you're scoring at home, you can give them 3 points each, or 17 points each, or give them both "heart shapes" or any symbol you like. If you are a judge scoring on the 10-point-must system, you don't hand out 9-9 rounds unless someone won a round 10-9, and then the referee told you to deduct a point from the winner of the round's card for a foul. 10-10 rounds are even rounds. 9-9 rounds represent one fighter winning a round but having a point deducted for fouling. You can either follow the scoring criteria or not when watching at home. Doesn't matter.