The referee monitoring the action is Herb Dean.
St. Pierre starts with a jab that lands. Immediately from there St. Pierre lands a double leg, but Koscheck wall walks back to his feet. Off a straight one-two, a right hand barely misses for GSP. Another stopped takedown by Koscheck. A third takedown attempt by GSP and it’s stopped again by Koscheck. GSP’s jab is starting to land almost at will now. Tons of movement now from the champion. GSP tries another double jab to right cross, but barely misses. Koscheck shoots for a double and then transitions for a single against the fence and eventually gets it. Koscheck was able to do nothing with the position.
SBNation.com scores this round 10-9 GSP.