Oguni got off to the perfect start surprising everyone, fans and Guzman, by dropping the champion in the 3rd round with a perfect shot to the mid-section. The knockdown was a surprise, especially given that Oguni isn't known for his power, but the placement was perfect. Guzman took the knockdown to heart and came back strong the following round but was unable to land regularly with his much vaunted power as Oguni used his defense see off the storm.
Guzman's work slowed down slightly in the middle rounds and things became worse for him in round 7, when his nose began to bleed, before suffering a cut to right eye in round 8. By then things were becoming increasingly difficult for the defending champion who was struggling to force his will on the fight.
In round 11 Guzman was down for a second time, again from a body shot, though the referee ruled it a low blow and gave Guzman time to recover. A decision that left the fans irate and some even threw plastic bottles in disgust at the decision. It however scarcely mattered as Oguni saw out the final round to earn a very well deserved decision win, with scores of 115-112 across the board.
After the bout Oguni stated that the body work was a deliberate tactic, but even he didn't expect the knockdown. He will now be mandated to defend his title against fellow Japanese fighter Ryosuke Iwasa in 2017, a genuine friend of Oguini's. For Guzman the future is going to be strange. He's part of the “Who needs him club?” a huge puncher who has little financial backing and perhaps the need to link up with someone who will bank roll him towards another title fight, where he could be a danger again in the future.
For those interested in knowing how much of an upset this was, one UK betting company had Oguni as a 10/1 under-dog with several others having Guzman at 1/19 to win!