TOKYO―18 April 2025―Prime Video today announced it will exclusively livestream the world title fight in Prime Video Boxing 13 on June 8, 2025, at Ariake Colosseum in Tokyo.

The card features World Bantamweight title unification fight between the WBC champion Junto Nakatani (Japan) and IBF champion Ryosuke Nishida (Japan); a 10-round Bantamweight bout between Tenshin Nasukawa (Japan), who is ranked first by the WBC, second by both the WBA and WBO, and fourth by the IBF, and Victor Santillan (Dominican Republic), who is ranked sixth by the WBA, as well as the second professional fight of Tomoya Tsuboi (Japan), a former amateur world champion.

Prime members in Japan will be able to watch live sport including Prime Video Boxing 13 and MLB regular season games at no additional cost to their membership. Prime members enjoy unlimited access to fast, convenient shipping benefits such as express delivery and scheduled delivery at no extra charge, as well as a variety of other shopping and entertainment benefits.

Prime Video began its boxing journey with the WBA and IBF World Middleweight title unification fight between Gennady Golovkin (Kazakhstan) and Ryota Murata (Japan) in April 2022, and has since livestreamed 11 major events over the past three years. On May 4 (May 5 in Japan), Prime Video will be exclusively livestreaming the four-organization unified World Super Bantamweight title match between Naoya Inoue (Japan) and Ramon Cardenas (USA) in Las Vegas, USA, as Prime Video Boxing 12.

By streaming the fierce battles of top boxers such as Naoya Inoue, Junto Nakatani, Kenshiro Teraji (Japan), and Tenshin Nasukawa, we are confident that we have successfully conveyed the true appeal and power of boxing.

Prime Video Boxing 13 features a unification fight between the WBC and IBF titles in the Bantamweight division, where Japan currently holds all four major world titles. The matchup is between Junto Nakatani (30 wins, no losses, 23 KOs) and Ryosuke Nishida (10 wins, no losses, two KOs)—both tall southpaws. Also on the card, Tenshin Nasukawa, considered a strong contender for a future world title, will face a crucial world title preliminary match.

"We are very pleased to build on the success of live boxing on Prime Video and announce the upcoming event Prime Video Boxing 13," said Yosuke Ishibashi, Head of Content at Prime Video Japan. "This time, two Japanese world champions will finally clash in the Bantamweight division, where Japanese fighters currently hold all four major titles.

"We are excited to see what kind of performance between Nakatani, who is recognized as one of the world’s top champions, and Nishida, who became a world champion in just ninth professional fight, they will show in this highly anticipated matchup. We are also eager to see how Tenshin Nasukawa, who has remained undefeated since his debut and is now on the verge of a world title challenge, will evolve, and to see if he will go on to challenge for the world title. In addition, we would like to draw attention to the match between Tomoya Tsuboi, who is competing in second his professional fight. We hope you will enjoy Prime Video Boxing 13 and look forward to watching the fascinating world of boxing."

"Prime Video Boxing 13 proudly presents a thrilling lineup featuring the World Bantamweight unification match between two Japanese champions, along with a prelude to Tenshin Nasukawa's world title challenge," said Tsuyoshi Hamada, President of Teiken Gym. "With Japanese fighters currently holding all four major Bantamweight titles, the long-awaited clash between champions Junto Nakatani and Ryosuke Nishida is finally here. Meanwhile, Tenshin Nasukawa faces his last hurdle before stepping onto the world stage. We hope to see him deliver a solid performance and take another big step toward a world title shot. We hope everyone will enjoy Prime Video Boxing 13."

Highlights of Prime Video Boxing 13

WBC and IBF World Bantamweight Title Unification Fight

After graduating from junior high school, Junto Nakatani moved to the United States, where he trained under Rudy Hernandez in Los Angeles. He returned to Japan and made his professional debut in April 2015 at the age of 17. The following year, he won the All-Japan Rookie of the Year title, and he captured the Japanese Flyweight Championship in 2019. He went on to win the WBO World Flyweight title in November 2020, the WBO World Super Flyweight title in 2023, and the WBC World Bantamweight title in 2024, achieving the rare feat of becoming a three-division world champion. Nakatani, standing 173 cm tall with a 174 cm reach, is a well-rounded southpaw who excels not only at outboxing but also in close- and mid-range exchanges. With a 77% knockout rate, his punching power is undeniable.

Ryosuke Nishida, the current IBF champion, had an amateur record of 50 fights with 37 wins and 13 losses before making his professional debut in October 2019. In just his third pro bout, he scored an eight-round decision win over former world title challenger Shohei Omori (Japan). In his next fight, he defeated former WBC World Flyweight Champion Daigo Higa (Japan) to capture the WBO Asia-Pacific Bantamweight title. After three successful defenses, he challenged IBF World Bantamweight Champion Emmanuel Rodriguez (Puerto Rico) in May of last year. Nishida scored a knockdown with a left body shot in the fourth round and went on to win by unanimous decision, claiming a world title in just his ninth fight. In his first title defense last December, he stopped Anuchai Donsua (Thailand) with a seventh-round KO. A 170 cm tall southpaw with a 173 cm reach, Nishida is a boxer who bases his style on outboxing but can also hold his own at close range.

Tenshin Nasukawa's World Title Prelude

Tenshin Nasukawa, who rose to fame in the world of kickboxing, transitioned to professional boxing in April 2023. He defeated world-ranked opponents in both his third and fourth bouts, and in his fifth fight last October, he captured the WBO Asia-Pacific Bantamweight title.

In February of this year, after breaking into the world rankings, Nasukawa faced former WBO World Bantamweight Champion Jason Moloney (Australia). Although he found himself in danger at times—such as when he was caught with a right straight and staggered—he otherwise controlled the bout with smart in-and-out movement and steady point scoring. He earned a unanimous decision victory over ten rounds with scores of 97–93, 97–93, and 98–92.

Victor Santillan is a southpaw with a record of 14 wins (five KOs) and one loss in 15 fights. After competing as an amateur, he turned professional seven years ago and racked up 13 straight victories. In June 2023, he traveled to Japan to face Takuma Ishida (Japan) in the WBA World Bantamweight title eliminator. He fought all 12 rounds but suffered a split decision loss, which remains the only defeat of his professional career. After bouncing back with a 10-round decision win later in June, he is now set to face Nasukawa. Santillan is a boxer-fighter type, known for his high guard stance, frequent use of feints, and subtle upper body movement.

Following this win, Nasukawa is now ranked within the top four of all four major sanctioning bodies.

After securing his sixth straight professional win (two KOs), Nasukawa came face-to-face in the ring with WBO Champion Yoshiki Takei (Japan), and the two shook hands, vowing to face each other in the near future. With Takei scheduled to make his first title defense in May and Nasukawa needing to clear his upcoming prelude bout, the road to a title shot is still uncertain. However, Japan’s dominance in holding all four bantamweight world titles remains unchanged.

Interestingly, all four champions, including WBA titleholder Seiya Tsutsumi (Japan), a switch-hitter who predominantly fights from the southpaw stance, are left-handed. This fact played a key role in the decision to match Nasukawa with a southpaw opponent for his upcoming fight.

Tomoya Tsuboi to Face World No. 12 in His Second Professional Fight

Tomoya Tsuboi, who won a world championship during his amateur career, made his professional debut this March with a second-round TKO victory. This upcoming fight will be his second professional bout. In his debut against Boonrueang Phayom (Thailand), who was ranked second by the WBO Asia-Pacific, Tsuboi dominated from the opening round and secured a brilliant TKO win with a flurry of fast punches in the second round.

His next opponent, Ban Thao Tran (Vietnam), is a right-handed boxer-fighter who turned professional in October 2015 and currently holds a record of 18 wins (10 KOs) and one loss in 19 fights. Tran has fought not only in his home country of Vietnam but also in South Korea, the Philippines, Thailand, Australia, and Cambodia. In May 2024, he captured the WBO Global Bantamweight title and is currently ranked No. 12 in the WBO World Bantamweight rankings. Tran has an unorthodox style, sometimes stepping in with a one-two combination or attacking from the right followed by the left. While his style can be rough at times, his right hand is considered particularly dangerous.

For Tsuboi, this fight presents another high hurdle following his debut, but a victory would likely earn him a spot among the world’s top 15. Although the fight carries considerable risk, the reward for winning would be significant.

Prime Video Boxing 13 Overview

Launch Date: June 8, 2025 (Sunday)

• The WBC and IBF World Bantamweight Title Unification Fight
Junto Nakatani (Japan) vs. Ryosuke Nishida (Japan)

• 10-Round Bantamweight Bout
Tenshin Nasukawa (Japan) vs. Victor Santillan (Vietnam)

• The WBO Asia-Pacific Bantamweight Title Match (10-round bout)
Tomoya Tsuboi (Japan) vs. Ban Thao Tran (Vietnam)

*The order of matches has not yet been determined
*Boxers' birthdays are based on the date of the match.

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*Membership registration is required to view Prime Video Boxing 13. (For more information about Amazon Prime, visit amazon.co.jp/prime.)