Jerwin Ancajas' bout with Alejandro Santiago goes the distance and ends in a draw as Ancajas retains his junior bantamweight belt. (0:55)

Jerwin Ancajas retained his junior bantamweight belt for the sixth time but had to settle for a draw in a very competitive fight with Alejandro Santiago on the Top Rank Boxing on ESPN+ card Friday night at Oracle Arena in Oakland, California.

Fighting in the co-feature of the nontitle bout between super middleweight world titlist Jose Uzcategui and Ezequiel Maderna, Ancajas and Santiago fought a scrappy, action fight the judges saw entirely differently. One judge had it 116-112 for Ancajas, one scored it 118-111 for Santiago and one had 114-114. ESPN.com scored the fight 115-113 for Ancajas, who is co-promoted by his Filipino countryman and idol Manny Pacquiao.

Naturally, Ancajas and Santiago each thought he should have had his hand raised in victory.

"It was a good, entertaining fight. My timing was a little off. He was a little awkward," Ancajas said. "I felt like I pressed the fight and did enough to win. I still want all the champions at 115 [pounds]. Nothing has changed."

Jerwin Ancajas, right, and Alejandro Santiago fought to a draw in their junior bantamweight title fight. Mikey Williams/Top Rank

Said Santiago: "Everyone saw the fight, and everyone saw that I won the fight clearly."

Santiago (16-2-5, 7 KOs), 22, of Mexico, fighting in his first 12-round bout, gave a very spirited effort on a difficult day. His promoter, Hall of Famer Don Chargin, died earlier Friday at age 90.

But he and Ancajas put on just the kind of scrappy fight Chargin would have loved.

The action picked up late in the second round when they traded toe-to-toe with both men getting nailed with solid punches, one of which appeared to wobble Ancajas (30-1-2, 20 KOs), 26, just before the bell ended the round.

Final punch stats Fighter Total Jabs Power Ancajas 127 of 589 (22%) 27 of 278 (10%) 100 of 311 (32%) Santiago 108 of 519 (21%) 10 of 182 (6%) 98 of 337 (29%) -Courtesy of CompuBox

It was competitive all the way, with both fighters landing their share of shots, but it was Ancajas, who had swelling over his right eye late in the bout, who hit a little harder and landed a little cleaner than Santiago, who fought to a draw for the second consecutive fight. He also got his jab going in the second half of the fight.

The fight essentially came down to battle between the southpaw Ancajas' straight left hand and Santiago's overhand rights.

The CompuBox punch statistics illustrated just how close the fight was. Ancajas landed 127 of 589 blows (22 percent) and Santiago connected with 108 of 519 (21 percent).

Also on the undercard

Bantamweight Joshua "Don't Blink" Greer Jr. (17-2-1, 9 KOs), 24, of Chicago, had his first fight since signing with Top Rank and scored an explosive third-round knockout of Giovanni Delgado (16-8, 9 KOs), 27, of Mexico. Greer unloaded more than a dozen unanswered punches, including several clean right hands to the head, that had Delgado out on his feet before referee Dan Stell jumped in to stop the bout at 1 minute, 49 seconds. "I came here to make a statement, and I did," Greer said. "Nobody has ever stopped him that fast. I'm ready for anyone at 118 pounds. I'm the best. Watch out because 'Don't Blink' is coming!"

Genesis Servania, left, stopped Carlos Carlson in a featherweight bout. Mikey Williams/Top Rank