A non-championship UFC fight will occur during the course of two or three five-minute rounds, accept for a championship fight, which has five rounds. At the end of each round, both fighters must immediately stop fighting and return to their corners to rest and get advice for the next round from their trainer. Fighters must stay active during a round and be constantly attacking when on the ground or in a clinch, or the referee may decide to separate you.
Victory Conditions -- You can win a UFC 2009 Undisputed fight in five different ways; knockout, technical knockout, submission, decision, and by forfeit.
- Knockout (KO) -- If you land a blow that leaves your opponent unable to rise or continue fighting then you're awarded a win by knockout.
- Technical Knockout (TKO) -- If you land several unanswered blows to an opponent's head you might leave your opponent in a "rocked" state. In this state your opponent is helpless to defend themselves and if you land a few more blows the referee will stop the fight and award you a TKO victory.
- Submission -- If you're able to move into a dominant (advantaged) position over your opponent, you can try to execute a submission hold. Submission holds are techniques designed to put stress on key parts of your opponents body to force them give-up or even render them unconscious by using a choke. Once you have an opponent in a submission hold, they must either break loose or tap out, or they'll loose consciousness.
- Decision -- If you're unable to finish your opponent by the end of the last round the fight winner of the fight will be determined by the judges. The judges determine the winner using a number of different criteria, including the number of blows you land, any reversals by both fighters, takedowns executed successfully, and the amount of time each fighter spends in the advantaged position on the ground during a fight. The three judges rate the performance of each fighter in every round and award the winner 10 points and the loser of the round 9 points. At the end of the fight, the points for each round are determined for each fighter, and the fighter with the highest point total wins the fight. If at the end of the fight each fighter has the same point total, the fight is declared a draw, and neither fighter receives a win or loss.
- Forfeit -- If you forfeit a fight before the end of the last round, you'll receive a loss.