Moises Calleros: Boxing Career and Notable Fights
Moisés Calleros García, nicknamed “Taz,” was a Mexican professional boxer from Monclova, Coahuila. He boxed across the minimumweight and flyweight divisions and built a long career as a contender.
Two challenges for the WBO minimumweight title
Calleros challenged Tatsuya Fukuhara for the interim WBO minimumweight title in February 2017, losing a split decision. In March 2018, he challenged full champion Ryuya Yamanaka in Kobe. Yamanaka retained the title after Calleros’s corner stopped the fight following the eighth round.
Calleros later won the vacant WBO–NABO flyweight title in 2019. BoxRec records Calleros’s death on March 1, 2024, aged 34.
His challenge against Yamanaka featured a contrast in approach. The champion used a quick jab and mobile footwork to control the opening rounds. Calleros sought closer exchanges and attacked the body in the third and fourth, but Yamanaka re-established his rhythm from the fifth round onward.
At the conclusion, two judges had Yamanaka ahead 80–72, while the third scored the contest 78–74. Calleros therefore faced a significant deficit as well as the pressure that prompted the corner retirement. The earlier Fukuhara contest had been much closer on the cards, underlining the different ways his two Japanese title opportunities unfolded.
Calleros continued competing after those setbacks. His subsequent results included a 2018 decision over Gerardo Jasso and victories against Genaro Rios and Oscar Saucedo Gonzalez in 2019. Later opponents included Julio Cesar Martinez and Galal Yafai, extending his experience beyond the minimumweight division. These bouts place the world-title challenges within a broader professional career that included domestic rebuilding fights and international assignments.
Further career results
Two later stoppage defeats came against prominent flyweights. Julio César Martínez stopped Calleros in the second round in Mexico City in October 2020. In April 2023, Olympic gold medalist Galal Yafai stopped him in round four in London. Those appearances took him from the Japanese minimumweight championship bouts to assignments against Mexican and British opposition at higher weights.
Sources
Additional sources: https://boxerlist.com/es/boxer/moises-calleros/350340
- BoxRec: Moises Calleros
- Boxing Meikan: Moisés Calleros fight record
- WBO: Yamanaka stops Calleros and retains the 105-pound belt
- Moisés Calleros: career record and WBO–NABO title
Additional source: Calleros’s professional bout history.
