Although Hisataka's record isn't great he's a much better fighter than the numbers indicate and he's also a much better fighter than Narvaez allowed him to be in one of the most outstanding performance we've seen this year.
Hisataka, known for his toughness and his ability to be competitive with great opponents such as Oleydong Sithsamerchai, Hugo Fidel Cazares, Denkaosan Kaovichit and Takefumi Sakata was simply never able to get into this bout.
Narvaez, although cautious in the opening round appeared to do enough to take it. It was the only round Hisataka came close to making an argument in as Narvaez spent much of it feeling out what Histaka had to offer. It seemed the Japanese challenger had little more than some excellent defensive moment and a predictable right hand.
Following the opening round Narvaez began to take over winning rounds 2, 3 and 4 comfortably whilst boxing well within himself. He appeared to have already figured out that Hisataka's only real weapon was his straight right hand and that his foot work was weak, his ability to avoid hooks was almost none existent and that his body was often a wide open target. The Argentinian's only problem in the early stages was managing to catch Hisataka clean.
By the fifth round Narvaez was beginning to tag Hisataka clean. The quick defensive movements of Hisataka were gone and he seemed to be trying everything he knew to find an opening including dropping his hands completely, something for which he was punished for. This appeared to be the start of the end as Hisataka's confidence quickly began to drain away.
If the fifth round showed Hisataka running out of ideas the sixth showed Narvaez proving he had an extra gear as he dominated Hisataka with every shot in the book, both to to the body and the head. It was the first sign that Narvaez seemed to realise he could hurt Hisataka and a round that very easily could have been scored 10-8 even with out a knockdown.
Having been thoroughly dominated in the previous round Hisataka came out for round 7 like a man who knew he had to do something to turn the bout around. He tried to hurt Narvaez, and through a very long series of shots though unfortunately the clever defensive work of Narvaez saw very, very few connecting.
After having given Hisataka a chance to attack early in round 7 the Argentinian fired back, hammering Hisataka once more with shots up and down as he made it clear that Hisataka wasn't in his league.
Narvaez, who had ended round 7 on fire showed a renewed vigour in trying to stop Hisataka in the following round unleashing nasty shots one after the other. By now Hisataka was totally unraveling, his defense was failing badly, his body and head were being used as target practice and his offensive work was becoming more and more limited. It was starting to resemble a beat down.
The beating continued through round 9 with Narvaez now really punishing Hisataka, every single shot was thrown to hurt the Japanese fighter who was putting on a brave face despite being slowly beaten down by a highly skilled fighter.
Unfortunately for Hisataka, Narvaez's attacks were well measured, he wasn't risking being caught by anything despite the complete control he was having and this meant the referee was in no rush to jump in. That however all changed part way through round 10 as Narvaez turned the screw and hunted the stoppage more intensely than he had in the previous rounds. A series of body shots says Hisataka dropping his hands and follow up shots reigned down on the Japanese fighter until the referee had seen enough to stop the bout.
This will be a very hard loss for Hisataka to come back from. He was totally out classed and beaten down by an "old man" and the loss could totally shatter his confidence. Saying that however Narvaez is genuinely exceptional, there is possibly only two men in the division who we would favour over him and one of those is Srisaket Sor Rungvisai a fighter who, if he faced Narvaez, would surely make for an exhilarating battle.
Hisataka probably won't return to the world stage, there though is nothing preventing him from claiming a Japanese title or even competing for the OPBF belt both of which are great achievements in their own right.