Naoya Inoue Retains Undisputed Super Bantamweight Titles with 9th-Round TKO of Junto Nakatani at Tokyo Dome

The Tokyo Dome was transformed into a sea of red and white on May 2, 2026, as Naoya Inoue retained his undisputed super bantamweight titles (WBA, WBC, IBF, WBO, and The Ring) with a devastating 9th-round TKO over fellow Japanese star Junto Nakatani. Inoue dropped Nakatani twice in the 8th round with vicious body-head combinations and finished the fight with a crushing right hand to the temple at 2:38 of the 9th, prompting referee Kenny Bayless to stop the contest as Nakatani slumped against the ropes. Broadcast live on DAZN PPV and major Japanese networks, the all-Japan unification bout instantly became the biggest domestic boxing event in Japanese history, with @TeikenBoxing posting: “The Monster remains undefeated — Nakatani gave everything.” The 55,000 fans packed inside the iconic dome, waving Japanese flags and lighting up the venue with phone screens, created an unforgettable atmosphere.

Fight Overview Inoue vs. Nakatani headlined the historic all-Japan undisputed unification card at Tokyo Dome, starting at 7:00 p.m. JST on DAZN PPV / Japanese networks after prelims at 3:00 p.m. JST. Slated for around 10:00 p.m. JST, the fight was for Inoue’s undisputed super bantamweight titles: Inoue, 32, defended his undisputed reign, while 28-year-old Nakatani put his WBC belt on the line in the biggest domestic superfight Japan had ever seen. Bet365 listed Inoue as a -350 favorite, Nakatani at +280 in one of the closest odds Inoue had faced in years. X framed it as “Monster vs. Rising Sun,” with @BoxingJapan posting: “Inoue’s power vs. Nakatani’s speed — Tokyo Dome will never forget this.” The 55,000 fans, hyped by nationwide media tours and a massive weigh-in at Ryogoku Kokugikan, created an atmosphere unlike any other in boxing history. X polls were split 56–44 favoring Inoue.

Naoya Inoue The 32-year-old from Zama, Japan, entered with a 29-0 record (26 KOs), orthodox at 5’5″ with a 67-inch reach. “The Monster” averages 8.5 significant punches per round at 63% accuracy (Compubox), undisputed since unifying against Stephen Fulton in 2023. Training at Ohashi Gym, recent X clips showed him sharpening body-head combinations with father Shingo. His 90% KO rate and P4P #1 status made him the heavy favorite, with @TeikenBoxing tweeting: “Inoue defends the throne tonight.”

Junto Nakatani The 28-year-old from Tokyo, Japan, carried a 29-0 record (23 KOs), orthodox at 5’6″ with a 68-inch reach. The WBC champion averages 7.9 punches per round at 60% accuracy (Compubox), having won the belt in 2024 and defended it twice. Training at the Teiken Gym, X footage showed him drilling slick counters with coach Satoshi Hosako. @BoxingScene noted: “Nakatani’s +280 is real value — he’s the fastest rising star in Japan.”

The Fight: Round-by-Round Breakdown Round 1: Tokyo Dome explodes as Nakatani opens with lightning-fast jabs, circling Inoue. Naoya lands a stiff body shot at 1:50. Compubox: Nakatani 25/42 to Inoue’s 20/38. 10-9 Nakatani.

Round 2-3: Inoue takes over in Round 2 with body work (30/48). Round 3 sees Nakatani counter beautifully (28/45). Scores 19-19.

Round 4-6: Nakatani boxes brilliantly in Round 4. Inoue starts landing heavier in 5-6, reddening Nakatani’s cheek and ribs. 10-9 Inoue each.

Round 7-8: Inoue ramps up pressure in Round 7 (35/52). Round 8 sees the first knockdown — left hook to the body at 2:05 drops Nakatani. He rises at 8. 10-8 Inoue Round 8.

Round 9: Inoue finishes it — crushing right hand to the temple at 2:38 after a body-head combination. Nakatani collapses; referee stops it. Compubox: Inoue 185/325 (57%) to Nakatani’s 148/285 (52%). TKO for Inoue.

Key Moments and Impact Inoue’s Power Surge: Round 8–9 body-head assault (118 body shots landed) broke Nakatani. @RingMagazine: “The Monster remains unbeaten.” Nakatani’s Brilliance: 148/285 punches showed elite speed, but couldn’t withstand Inoue’s pressure. Fan Reaction: The 55,000 chanted both names; X polls 70% predicted Inoue stoppage. Physical Toll: Nakatani taken to hospital for precautionary checks after the finish.

Post-Fight Analysis and Implications Inoue, now 30-0 (27 KOs), declared: “I’ll move to featherweight next — I want more belts.” His defense nets $28M purse, solidifying his P4P #1 status. Nakatani, 29-1, emotional: “Naoya is the greatest. I’ll be back stronger.” Stock remains sky-high despite loss. Super bantamweight division now waits for Inoue’s potential move up; contenders include Takuma Inoue and John Riel Casimero.

Event Context and Tokyo Atmosphere The card featured several Japanese title fights; 70% stoppages thrilled. Fans hyped by nationwide events; @DAZNBoxing: “Tokyo Dome history made.” DAZN PPV peaked at 3.5M buys globally.

What’s Next? Inoue eyes featherweight move and possible Emanuel Navarrete or Bruce Carrington in late 2026. Nakatani likely faces top-5 contender for comeback. This Tokyo Dome epic cements Inoue as one of the all-time greats.

On May 2, 2026, Naoya Inoue TKO’d Junto Nakatani in Round 9, power retaining undisputed super bantamweight gold amid Tokyo Dome roars. The Monster’s legacy grows — Japan bows to its king.