Vincent Astrolabio Bio
Vincent Diazen Astrolabio, widely known by his ring name “Asero” (which means “Steel” in Filipino), is a Filipino professional boxer who has built a reputation as a hard-hitting contender in the lower weight classes. Born on April 1, 1997, in General Santos City, Cotabato del Sur, Philippines, he turned professional in 2015 and has spent much of his career fighting in the super flyweight and bantamweight divisions. Standing 1.65 m (5 ft 5 in) tall with a reach of 166.37 cm (66 in), Astrolabio fights from an orthodox stance and has become known for his finishing power, having stopped 15 opponents inside the distance.
Early Life and Background
Vincent Diazen Astrolabio was born and raised in General Santos City, a city in the Cotabato del Sur region of the southern Philippines that has produced several prominent athletes. The city is widely recognized for its strong sports culture, and boxing in particular has long enjoyed popularity across the country, especially among young athletes looking to build careers in the ring. Astrolabio grew up surrounded by that environment and developed an interest in the sport at an early age, eventually committing himself to training as a boxer.
Like many fighters from the region, he pursued boxing as a route to a professional career, training under local coaches and competing in amateur-style settings before deciding to turn professional. By the time he was 18, he was ready to step into the paid ranks, signaling the start of a journey that would take him from local Filipino fight cards to championship contests abroad.
Path to Boxing
Astrolabio made his professional debut on August 14, 2015, at the SM City Annex in Davao City, Philippines, where he faced Argie Emendo and won by technical knockout. That early victory set the tone for his professional career, as he strung together stoppage wins in the super flyweight division over the following years. During this developmental period, he competed against a range of regional opponents, building the experience and ring craft that would prepare him for title-level opportunities.
In December 2018, he challenged for the vacant WBO Asia Pacific Youth Super Flyweight title against Zhongli He in Yubei, China, but lost by majority decision with scorecards of 95-95 and 94-96 twice. Despite that setback, the loss provided important lessons and motivated him to move up in weight, where he would soon find greater success at bantamweight.
Vincent Astrolabio Career
Early Career (2015-2018)
Vincent Diazen Astrolabio began his professional career in the super flyweight division in August 2015 and quickly became an active fighter on the regional Philippine circuit. Between his debut and late 2017, he built an unbeaten run that stretched to eight consecutive victories, several of which ended by stoppage. That streak included a notable win on July 24, 2017, when he defeated Joe Tejones (8-3-0) over ten rounds by unanimous decision to claim the vacant Philippines Mindanao Professional Boxing Federation (MinProBa) bantamweight title.
On July 15, 2018, Astrolabio was given a high-profile opportunity on the undercard of Manny Pacquiao vs. Lucas Matthysse at Axiata Arena in Kuala Lumpur, Malaysia, where he faced Japan’s Yuki Strong Kobayashi. He was stopped via technical knockout in the fourth round, but the exposure on such a major card helped raise his profile within the sport.
Bantamweight Breakthrough (2019-2022)
After moving up to the bantamweight division, Astrolabio defeated undefeated Patrick Liukhoto of Indonesia by technical knockout to win the vacant WBO Oriental bantamweight title in Jakarta, Indonesia. He defended that title twice, recording a fifth-round stoppage over Kevin Aseniero and a body-shot knockout of Wilbert Berondo, establishing himself as a regional force at 118 pounds.
Astrolabio then took a major step forward by facing the experienced Guillermo Rigondeaux for the vacant WBC International bantamweight title in Dubai, winning a clear unanimous decision. Following that victory, he traveled to the United States for the first time to face Russian Nikolai Potapov for the vacant WBO Intercontinental belt. After flooring Potapov in rounds one and five, Astrolabio finished him in round six to claim the WBO Inter-Continental title.
Title Challenges and WBC Title Fight Era (2023-Present)
With Naoya Inoue vacating his WBO bantamweight title to move up to super bantamweight, Astrolabio earned the opportunity to challenge Jason Moloney for the vacant WBO bantamweight crown, but lost by majority decision. He quickly rebounded, however, when the World Boxing Council ordered a bantamweight title eliminator between him and Thailand’s Nawaphon Kaikanha, the WBC’s number-one ranked contender. On August 26, 2023, at Suan Lum Night Bazaar Ratchadaphisek in Bangkok, with the bout aired live by Thairath TV, Astrolabio dropped Kaikanha with a counter right hand in the eleventh round before the referee halted the contest, earning a technical knockout victory and the right to challenge for a world title.
Astrolabio was then scheduled to challenge Junto Nakatani for the WBC bantamweight title at Ryōgoku Kokugikan in Tokyo, Japan, on July 20, 2024, continuing his run of high-profile assignments.
Style and Strengths
Vincent Diazen Astrolabio fights from an orthodox stance and is recognized primarily for his punching power, with 15 of his 20 career victories coming by knockout. His compact frame and short reach have not limited his effectiveness, as he has shown an ability to close distance, work the body, and finish opponents late in fights, including his late stoppage of Kaikanha in the eleventh round.
Notable Events and Milestones
Among Astrolabio’s career highlights are his unanimous-decision win over former world champion Guillermo Rigondeaux to capture the WBC International bantamweight title, his sixth-round knockout of Nikolai Potapov to win the WBO Inter-Continental bantamweight title in his United States debut, and his eleventh-round stoppage of Nawaphon Kaikanha in a WBC title eliminator in Bangkok.
Vincent Astrolabio Career Wins
Across his professional career, Vincent Diazen Astrolabio has compiled a record built on aggressive finishing ability and steady development at the regional, continental, and international levels. He has held both the WBO Inter-Continental and WBC International bantamweight titles, and his career has included wins over former world champions and unbeaten prospects alike.
Bantamweight Highlights
Astrolabio’s most significant victories have come at bantamweight, where he has won the WBO Oriental, WBC International, and WBO Inter-Continental titles. His unanimous-decision win over Guillermo Rigondeaux stands as one of the most prominent results of his career, while his eleventh-round technical knockout of Nawaphon Kaikanha in a WBC title eliminator in Bangkok marked his most recent major win.
Other Wins and Performances
Earlier in his career, Astrolabio won the Philippines Mindanao Professional Boxing Federation bantamweight title with a ten-round unanimous decision over Joe Tejones in 2017 and captured the WBO Asia Pacific Youth Super Flyweight challenger experience by facing Zhongli He in 2018. He has also fought on major international cards, including the Manny Pacquiao vs. Lucas Matthysse undercard in Kuala Lumpur in 2018.
Vincent Astrolabio Family
Family Background and Racing Lineage
There is limited publicly available information regarding Vincent Diazen Astrolabio’s family background or any boxing lineage in his immediate family.
Personal Life
Vincent Diazen Astrolabio has kept much of his personal life private, and details about his spouse, children, and family have not been publicly confirmed.
2025 Season Performance
Looking ahead to 2025, Vincent Diazen Astrolabio is positioned within the WBC bantamweight title picture following his eleventh-round technical knockout victory over Nawaphon Kaikanha in the August 2023 title eliminator in Bangkok. That result placed him as the mandatory challenger for champion Junto Nakatani, and his scheduled July 20, 2024 challenge at Ryōgoku Kokugikan in Tokyo represented the most significant bout of his career.
How his 2025 campaign unfolds will depend heavily on the outcome of that title challenge and any subsequent WBC rulings regarding the bantamweight division. With a record built on knockout power and experience against world-level opposition, Astrolabio remains a credible contender in the 118-pound weight class.
Fans and analysts will be watching closely to see whether Astrolabio can leverage his finishing ability and momentum from the Kaikanha win to capture a world title and cement his status among the elite bantamweights on the global stage.