Below is the history of the ONE Championship Flyweight Muay Thai World championship:
The title is currently vacant. Asadula Imangazaliev faces Aslamjon Ortikov for the vacant belt at The Inner Circle on June 26, 2026.
On March 20, 2026, Asadula Imangazaliev knocked out Nong-O Hama in round two of a bout contested for the vacant title at ONE Friday Fights 147. Imangazaliev missed weight and hydration, so he was ineligible to win the belt. The title remained vacant.
On November 8, 2024, Rodtang Jitmuangnon failed to make weight and hydration ahead of his title defence against Jacob Smith at ONE 169. He was stripped of the title and the bout went ahead as a non-title contest, which Rodtang won by unanimous decision. The title has been vacant since.
| # | Champion | Event | Date | Opponent |
|---|---|---|---|---|
| 3 | Rodtang Jitmuangnon | ONE: Dawn of Heroes | August 2, 2019 | Jonathan Haggerty |
| 2 | Jonathan Haggerty | ONE: Enter the Dragon | May 17, 2019 | Sam-A Gaiyanghadao |
| 1 | Sam-A Gaiyanghadao | ONE: Heroes of Honor | April 20, 2018 | Sergio Wielzen |
All ONE Flyweight Muay Thai World Title fights
Every title bout contested for the ONE Flyweight Muay Thai World Championship, with the most recent at the top.
| Date | Event | Champion | Challenger | Method | Result |
|---|---|---|---|---|---|
| June 26, 2026 | The Inner Circle | Vacant | Asadula Imangazaliev vs Aslamjon Ortikov | Scheduled | For the vacant title |
| March 20, 2026 | ONE Friday Fights 147 | Vacant | Asadula Imangazaliev vs Nong-O Hama | KO Rd 2 | Imangazaliev won but missed weight; title remained vacant |
| November 8, 2024 | ONE 169 | Rodtang Jitmuangnon (c) | Jacob Smith | Unanimous Decision | Rodtang missed weight; bout went non-title and the title was vacated |
| May 5, 2023 | ONE Fight Night 10 | Rodtang Jitmuangnon (c) | Edgar Tabares | KO (elbow) Rd 2 | Rodtang retains |
| November 19, 2022 | ONE on Prime Video 4 | Rodtang Jitmuangnon (c) | Joseph Lasiri | Unanimous Decision | Rodtang retains |
| July 31, 2020 | ONE: No Surrender | Rodtang Jitmuangnon (c) | Petchdam Petchyindee Academy | Majority Decision | Rodtang retains |
| January 10, 2020 | ONE: A New Tomorrow | Rodtang Jitmuangnon (c) | Jonathan Haggerty | TKO Rd 3 | Rodtang retains |
| October 13, 2019 | ONE: Century | Rodtang Jitmuangnon (c) | Walter Goncalves | Split Decision | Rodtang retains |
| August 2, 2019 | ONE: Dawn of Heroes | Jonathan Haggerty (c) | Rodtang Jitmuangnon | Unanimous Decision | Rodtang wins title |
| May 17, 2019 | ONE: Enter the Dragon | Sam-A Gaiyanghadao (c) | Jonathan Haggerty | Unanimous Decision | Haggerty wins title |
| April 20, 2018 | ONE: Heroes of Honor | Vacant | Sam-A Gaiyanghadao vs Sergio Wielzen | KO Rd 2 | Sam-A wins inaugural title |