The bout saw the more skilled, and crisper, Ancajas boxing well behind his jab early on. There was little from Sultan early on as Ancajas proved to be too quick, too sharp and too naturally long for Sultan. The challenger would, at times, look to sneak inside but would be punished for any real sign of aggression he showed. Ancajas's foot work was brilliant early on, and whilst the intensity of his output was limited the skills on show were impressive ans he landed jabs, solid left hands and went to the body with regularity.
The one sided yet drama free nature of the bout saw the fans quickly turn on the fight, booing the relative lack of action. The boos from the crowd didn't really change the action, which continued to be straight forward for Ancajas until round 8, when Sultan finally managed to have some success, as Ancajas seemed to switch off.
With Sultan knowing he needed to turn it around he put his foot on the gas in round 9, and finally seemed to win a round as Ancajas began to look as bored as the crowd sounded. The champion would also seem to be switched off in round 10, but even then it never seemed like Sultan could have any sustained success, and Ancajas continued to land his jab and move well as he continued to keep the challenger at bay.
The action did manage to heat up in the final two rounds, but by then it was a forgone conclusion and there was no doubting that Ancajas had done enough to take decision, which the judges went on to confirm with 3 wide cards in favour of the champion, who secured his 5th defense.
It seems likely that Ancajas will be eyeing up a unification bout with WBA champion Kal Yafai, who also defended his title on this show, and that fight would be an interesting one, with more action than this all-Filipino one.