The “Cosme Felice & M-Lavi Presents: You Will Be the Champion 28” event, hosted by Muto Boxing Gym, took place on the 12th at the Sumiyoshi Ward Center in Osaka. In the main event, a 10-round OPBF middleweight title match, champion Riku Kunimoto (28, Muto) suffered a major upset loss by knockout to the challenger and OPBF No. 6-ranked Ha Seo Baek (35, Mongolia). Riku Kunimoto failed in his first defense of the title.
ペクに敗れ、OPBF王座から陥落した国本
Riku Kunimoto was unable to unleash his customary combinations and succumbed in the seventh round under a barrage of short punches from Ha Seo Baek. The new champion, Ha Seo Baek, moves to 5-2 (3 KOs), while Riku Kunimoto falls to 15-2 (8 KOs). Following the defeat, Riku Kunimoto announced his retirement, stating, “I underestimated my opponent. I am 29 years old, and I wish to call it a career after this loss.”
アシロをKOした新鋭中山
In an undercard bantamweight eight-rounder, OPBF No. 12 Keita Nakayama (23, Muto) engaged in a fierce toe-to-toe battle with OPBF No. 8 Jerwin Asilo (25, Philippines). Keita Nakayama systematically weakened Jerwin Asilo—who previously took Tenshin Nasukawa (Teiken) to a decision—with a consistent body attack. In the fifth, Keita Nakayama opened up from the body before landing a powerful left hook to the head to score a knockdown. He then unleashed a relentless assault on the rising Jerwin Asilo, scoring a second knockdown to secure the ten-count. Keita Nakayama improves to 4-0 (4 KOs).
In a 58kg eight-rounder, OPBF super-bantamweight No. 14 Hinata Nakasato (23, Muto) suffered a second-round knockout defeat to OPBF bantamweight No. 13 Amgerow Samson (25, Philippines) after being caught by a left to the temple. In a 56kg eight-rounder, the 2025 All-Japan Bantamweight Rookie of the Year and Japan No. 11 Gen Mitsutomi (24, Muto) cornered Jackrit Boonchiao (23, Thailand) with body shots to earn a fourth-round TKO.
Furthermore, Japanese featherweight No. 2 Kyohei Tonomoto (30, Katsuki) secured a first-round TKO victory over Anurak Madua (28, Thailand) in a six-round contest. This marks a successful comeback for Kyohei Tonomoto following his defeat in a Japanese title challenge last October.
OPBF Middleweight Title 10-Rounder Ha Seo Baek (Mongolia) [KO7 2:30] Riku Kunimoto (Muto)
Bantamweight 8-Rounder Keita Nakayama (Muto) [KO5 1:57] Jerwin Asilo (Philippines)
58kg 8-Rounder Amgerow Samson (Philippines) [KO2 1:43] Hinata Nakasato (Muto)
56kg 8-Rounder Gen Mitsutomi (Muto) [TKO4 1:47] Jackrit Boonchiao (Thailand)
Featherweight 6-Rounder Kyohei Tonomoto (Katsuki) [TKO1 2:46] Anurak Madua (Thailand)
