Yoshihiro Akiyama, the combat sports icon known across Asia as Choo Sung-hoon, has defied the conventional timeline of athletic decline. At 50 years old, the former judoka and mixed martial arts (MMA) veteran continues to operate as a professional fighter, rejecting the notion of retirement in favor of a prolonged, high-stakes career that spans three decades.
Akiyama, a figure of immense cross-cultural appeal, has navigated a unique duality in his career, representing both South Korea and Japan on the world stage. While many athletes of his vintage have transitioned fully into coaching or broadcasting, Akiyama remains a competitive force, recently making headlines for his continued desire to compete despite the physical toll of the sport.
A Legacy Built on Mat and Canvas
The foundation of Akiyama’s enduring physicality lies in his elite judo background. He achieved global recognition by winning a gold medal at the 2002 Busan Summer Asian Games, representing South Korea. This victory solidified his status as a premier grappler before he transitioned into the burgeoning world of mixed martial arts.

His transition to MMA saw him become a household name, particularly through his tenure in the UFC and K-1 HERO’s, where he captured the Light Heavyweight Grand Prix Tournament Championship. His blend of judo throws and striking earned him the nickname Sexyama
, a nod to his charisma and physical presence that transcended the octagon.
The ONE Championship Era and the 50-Year Milestone
In recent years, Akiyama’s career has been defined by his partnership with ONE Championship. Since December 2018, he has competed under the promotion’s banner, engaging in high-profile bouts that tested his longevity. One of his most significant recent triumphs came during the ONE X event, where he secured a victory over the legendary Shinya Aoki.

Despite the victory, the reality of aging in a sport dominated by athletes in their 20s and 30s has not been ignored. Akiyama has been candid about the challenges of maintaining elite conditioning. In a reflection on his training regimen, he noted that training at 100% every day is a stress
at his current age, emphasizing the necessitate for consistency over raw intensity.
By May 2026, Akiyama has entered his 51st year, yet he remains active in the public eye and the combat sports circuit. His commitment to the sport is not merely about winning matches, but about the psychological challenge of remaining a viable competitor at an age where most of his peers have long since retired.
Beyond the Cage: Cultural Icon and Media Presence
Akiyama’s influence extends far beyond his win-loss record. He has successfully bridged the gap between sports and entertainment in both Japan and South Korea, appearing in numerous variety shows and high-profile media projects. His participation in Netflix’s Physical: 100
further cemented his status as a global symbol of fitness and discipline, where he faced off against competitors significantly younger than himself.
This visibility has allowed him to maintain a brand that is as much about longevity and health as it is about fighting. By continuing to compete, he provides a blueprint for “master” level athletes, proving that strategic training and mental fortitude can extend a professional career well into the fifth decade of life.
The Tactical Shift: Adapting to Age
To survive in MMA at 50, Akiyama has had to evolve. The explosive power of his youth has been replaced by a more calculated, technical approach. He relies heavily on his judo base to neutralize opponents and uses his experience to manage the pace of a fight, avoiding the high-energy skirmishes that often lead to injuries for older fighters.
His ability to remain competitive is a testament to a rigorous recovery protocol and a professional approach to sports science. While he has previously mentioned the possibility of retirement during interviews—notably in 2022 when discussing the mental toll of returning to the cage—his actions consistently point toward a desire to retain fighting.
Career Snapshot: Yoshihiro Akiyama (Choo Sung-hoon)
| Birth Date | July 29, 1975 |
| Key Achievement | 2002 Asian Games Gold Medal (Judo) |
| Notable MMA Win | Victory over Shinya Aoki (ONE Championship) |
| Current Status | Active / Professional Fighter |
| Nickname | Sexyama |
What Lies Ahead
As Akiyama continues his journey, the focus shifts from championship gold to the pursuit of longevity. Whether he pursues a final “farewell” bout or continues to take on impromptu challenges, his presence in the ring remains a point of fascination for fans of combat sports worldwide.
The combat sports world will continue to monitor his health and upcoming fight bookings. For a man who has already conquered the judo mat and the MMA cage, the ultimate opponent is now time itself—and so far, Akiyama is winning.
Stay tuned to Archysport for further updates on Akiyama’s fight schedule and official announcements regarding his next opponent.