Joseph Sumabong, the WBO Asia-Pacific minimumweight champion, will face undefeated OPBF titleholder Jheng Ciou in a regional title unification bout on Saturday night, July 11, 2026. The fight headlines PMI Bohol Boxing Promotions' "Kumong Bol-anon XXV" at the Holy Name University Barder Gym in Tagbilaran City, Bohol.
Weigh-in and Stakes
Both fighters cleared the minimumweight limit during the official weigh-in. Sumabong tipped the scales at 104.7 pounds, while Ciou weighed in at 104.8 pounds. At stake are Sumabong's WBO Asia-Pacific minimumweight belt and Ciou's OPBF minimumweight title.
Sumabong's Recent Form
The 24-year-old Sumabong (10-1, 5 KOs) has won four straight fights since his sole career loss to Goki Kobayashi in 2024. He has since defeated John Kevien Jimenez, Joperson Trazo, Japan's Takero Kitano, and Roland Toyogon. A victory over Ciou would bolster his world rankings: he is currently ranked No. 6 by the WBC, No. 8 by the WBA, No. 10 by the WBO, and No. 14 by the IBF.
"I trained hard for this fight. I'm really focused," said Sumabong. "I can't say that I'll knock him out, but I will try. I'll just keep my focus and a knockout will come."
Ciou's Undefeated Record
Ciou, 21, boasts an undefeated record of 9-0-1 with eight knockouts. He captured the WBC Asian light-flyweight title with a third-round stoppage of Thailand's Daychanan Udomruttanatepkit last year. He then moved down in weight and claimed the OPBF minimumweight belt with a unanimous decision over Japan's Ryoga Hattori in Taiwan on March 1, 2026.
"We are pressured because we know Sumabong is a strong opponent. But I love challenges and fighting quality opponents. This fight will make me stronger, and I hope to win and climb higher in the world rankings," Ciou said.
Co-Main Event and Undercard
In the co-main event, IBF light-flyweight champion Shane Gentallan (14-1, 7 KOs) faces China's Xiao Kang Song (6-3, 1 KO) in a non-title 10-round bout. The undercard includes unbeaten IBF Asia flyweight champion Leonard Pores III (10-0, 7 KOs) against veteran Renoel Pael (24-17-2, 12 KOs), former world title challenger Christuan Balunan (13-1, 8 KOs) versus Arvin John Sampaga (8-5-1, 3 KOs), Reymart Tagacanao (12-1, 10 KOs) against Jessie Bell Goltiano (7-7, 4 KOs), Jericho Acaylar (12-3, 1 KO) versus Michael Adolfo (6-7, 3 KOs), Sugarey Leonard Pores (8-2, 6 KOs) against Venjie Patac (3-13-1, 1 KO), and pro debutant Dryxz Russel Sardalla against Jethro Illusorio (0-3).



