Ogawa looked aggressive in the opening round, and probably took it on the basis of his powerful right hand, which connected a few times against the intelligent Farmer. Farmer however responded be getting into his groove into round 2 and he seemed to clearly out box Ogawa from rounds 2 through to 6 in what was a real show case of Farmer's skills, movement, and counter punching ability.
The skills of Farmer were really impressive during those rounds, and it looked like he could breeze through to the final bell with out needing to find any extra gears. He had made Ogawa miss, look silly and looked second rate at times.
Knowing he was behind Ogawa knew he had to let his hands go more in the later rounds, and in round 7 he had a real through as he managed to really let his shots flow more naturally and landed enough right hands to catch the eye. A case for Farmer out landing Ogawa could be made, but the reality is that Farmer's shots were often pea shooter shots, with nothing on them, whilst Ogawa's shots had impact and did damage,it's true Ogawa was missing regularly, but he was also landing the better shots.
From round 7 onwards it seemed like Ogawa was doing just enough to have a shout. He was landing right hands whilst Farmer posed, used his defense and went for walks around the ring. The offense from Farmer seemed to become very intermittent and rare and it was clear that he had switched off, become over confident and really failed to shine as he should have. In some ways Farmer was letting Ogawa back into the bout, despite the commentary on HBO and Sky Sports, and Ogawa was taking his chance to reel back the rounds he had lost early on.
After 12 rounds it seemed like Farmer's charge in the middle first half had been reeled in somewhat by Ogawa, despite some good stuff by Farmer in the latter stages. It looked like Farmer did enough, but it was close, much closer than the commentary were suggesting, with some of the commentary suggesting the bout to be a near shut out for Farmer, who they seemed to fall in love with from the opening rounds.
Listening to the commentary the decision was a formality, but it did seem much, much closer, and that was shown in the score cards which saw Ogawa claim the split decision, with scores of 115-113 and 116-112 in his favour, against a card of 116-112 for Farmer.
The result saw the commentators incredulous, and their view certainly permeated on to fans, though the fight was much, much more competitive than they were suggesting. Interestingly all 3 judges, and the referee, were American.