Was this off memory? Just rewatched round 1:
GSP lands absolutely nothing of substance the whole round. He gets the takedown and tries a sub, but Hendricks immediately rolls out of it and stands back up. GSP then shoots for another takedown and walks into a nice uppercut. GSP spends about the next 30 seconds hugging Hendricks leg, and Hendricks starts to land some nice shots and elbows to the head of GSP, the hardest strikes of the round. Hendricks then reverses GSP on the fence, and soon after lands his taken (so they both gave a TD). GSP gets up quickly, and spends the rest of the round missing punches and kicks. Even though the stats have it pretty close in terms of strikes landed, Hendricks clearly lands the harder shots, and dodges most of everything that GSP throws (except a nice jab). I thought this round clearly goes to Johny, and with rounds 2 and 4 that is the fight.