Naoya Inoue Net Worth 2026: Tokyo Dome Purses and the Riyadh Deal

On May 2, 2026, Inoue beat Junto Nakatani by unanimous decision (116-112, 115-113, 116-112) in front of 55,000 fans at a sold-out Tokyo Dome. It was the biggest all-Japanese fight in years, and the money matched it.

Sankei Sports, citing multiple insiders and summarized by BoxingInsider, reported Inoue's purse in the "multiple billions" of yen, depending on PPV incentives. Nakatani was reported at 500 million to 1 billion yen. Ohashi Gym president Hideyuki Ohashi confirmed both purses were the highest of their careers but did not give exact figures.

If "multiple billions" means at least 2 billion yen, that is roughly $13 million or more at recent exchange rates. Japanese media projected the event's total revenue past the national combat sports record of more than 5 billion yen, against a production cost Nikkan Sports estimated at about 4 billion yen.

Inoue's first Tokyo Dome headliner came on May 6, 2024 against Luis Nery. He stopped Nery in the sixth round to move to 27-0 and keep his undisputed titles.

His purse was reported at about 1 billion yen, which Total Pro Sports converted to £5.2 million. That works out to roughly $6 million to $7 million at the exchange rate of the time. BoxingInsider's coverage of the Nakatani card also references the Nery fight as roughly a 1 billion yen payday.

The Nery fight is where Inoue's pay moved into the same territory as the sport's biggest names outside the heavyweights.

Inoue took his show abroad in 2025. On May 4, 2025 at T-Mobile Arena in Las Vegas, he survived a second-round knockdown and stopped Ramon Cardenas in the eighth round in front of an announced 8,474. In September 2025 he beat Murodjon Akhmadaliev by unanimous decision in Nagoya. On December 27, 2025, he made his Saudi debut at The Ring V: Night of the Samurai in Riyadh, beating Alan Picasso by unanimous decision.

DraftKings Network estimated his Cardenas purse at $7 million to $7.5 million, citing Sportskeeda. That is a third-party estimate. No commission figure for that fight appears in the coverage we reviewed, so we do not count it as disclosed.

In November 2024, Inoue signed what he called a sponsorship contract with Riyadh Season, becoming an ambassador for Turki Alalshikh's entertainment calendar. "I am very happy to have been able to break down the class barrier and sign such a big contract," Inoue said.

The value was not disclosed. The Ring reported it was expected to be well into eight figures. Boxing News noted figures of £15 million to £20 million circulating online but did not name a source, so we treat that range as unconfirmed.

Either way, this is the single biggest non-purse income stream on his ledger, and it explains why his December 2025 fight landed in Riyadh.

At home, Inoue is a corporate fixture. Sportscasting lists past partners including Six Pad, NTT Docomo, Maruhan and D Card Platinum. NTT Docomo's Lemino streaming service carried the Nakatani fight as PPV in Japan, priced at 6,050 yen in advance and 7,150 yen on the day.

Days before the Nakatani fight, SBI Holdings announced a sponsorship with Inoue on April 30, 2026. None of these deals have published dollar values, so they sit inside our range as an unknown rather than a line item.

Inoue fought often while he was getting paid. Between May 2025 and May 2026 he fought four times across three countries, against Cardenas, Akhmadaliev, Picasso and Nakatani. After Picasso, he admitted he was tired at the end of a grueling year.

That activity matters for the net worth math. Top boxers often fight once or twice a year. Inoue stacked major paydays back to back while keeping his record perfect and extending his streak in world title fights to 28.

Add the reported pieces: about 1 billion yen for Nery, "multiple billions" for Nakatani, an eight-figure Riyadh Season agreement, a run of 2025 purses that third parties estimated in the high seven figures, and a deep stable of Japanese sponsors. That is comfortably over $50 million in gross career earnings.

Then subtract what fighters always lose: Japanese income tax at the top bracket is steep, and gym and management shares come off the top. That is why we land at $30 million to $50 million. A widely repeated $7 million figure attributed to The Sun was circulating in early 2025 and is badly out of date. It is a third-party estimate that predates his biggest paydays.

Inoue told the Tokyo Dome crowd he would be back there and that his career is not over. No next opponent had been officially announced in the coverage we reviewed. Another Tokyo Dome date would likely push his best purse higher again, given the Nakatani card's record pace.