Rodtang Jitmuangnon

After signing with ONE Championship, Rodtang made his ONE Super Series debut against Sergio Wielzen on September 22, 2018 at ONE Championship: Conquest of Heroes in Jakarta. He defeated Wielzen by unanimous decision.[8]

On August 2, 2019 at ONE Championship: Dawn of Heroes in Manila, Rodtang faced Jonathan Haggerty for the ONE Flyweight Muay Thai World Championship after Haggerty previously called him out at ONE Championship: For Honor.[9] After a slow start to the fight, Rodtang knocked Haggerty down in the fourth round and went on to win the fight by unanimous decision, also being crowned the new ONE Flyweight Muay Thai World Champion.[10] In his first title defense, Rodtang defeated Walter Goncalves by split decision at ONE Championship: Century on October 13, 2019.[11]

Rodtang then made his second title defense of the ONE Flyweight Muay Thai World Championship in a rematch against Jonathan Haggerty at ONE Championship: A New Tomorrow on January 10, 2020.[12] In a fight where he floored Haggerty a total of 4 times, including a liver shot in the first round, Rodtang went on to retain his ONE Flyweight Muay Thai Title with a third-round TKO victory after delivering 3 knockdowns in that same round.[13]

Rodtang next faced Petchdam Petchyindee Academy for a third time as he is scheduled to defend the ONE Flyweight Muay Thai World Championship a third time at ONE Championship: No Surrender on July 31, 2020.[14] He defeated Petchdam and retained the title by majority decision after five rounds.[15]

On October 5, 2020, Rodtang faced Kaonar P.K.SaenchaiMuaythaiGym in a rematch which was arranged to raise money for charity. Rodtang won the fight via unanimous decision.[16]

A tenured Muay Thai fighter, Rodtang was scheduled to make his kickboxing debut against Alejandro Rivas at ONE Championship: Fists Of Fury on February 26, 2021.[17][18] Rivas was later replaced by Tagir Khalilov, whom Rodtang beat by split decision.[19]

He was expected to face Jacob Smith at ONE on TNT 1 on April 7, 2021.[20] However, Smith was later pulled from the fight and replaced with Danial Williams.[21] Rodtang defeated Williams by unanimous decision.[22]

On September 15, 2021, it was announced that Rodtang would face the former UFC Flyweight Champion and 2019 ONE Flyweight Grand-Prix Champion, Demetrious Johnson. The fight was scheduled to take place on December 5, 2021 under special rules, and headlined the ONE: X event. Rounds 1 and 3 were contested under the ONE Muay Thai ruleset, and rounds 2 and 4 were contested under the ONE MMA ruleset.[23] However, due to the pandemic shutdowns, the event was rescheduled for March 26, 2022.[24] Rodtang lost the bout after being choked unconscious via a rear-naked choke in the second round.[25]

The bout with Jacob Smith was rebooked to serve as a quarterfinal bout of the ONE Muay Thai Flyweight Grand Prix at ONE 157 on May 20, 2022.[26] He won the bout via unanimous decision.[27] This win earned Rodtang his first Performance of the Night bonus award.[28]

Rodtang was expected to face Savvas Michael in the tournament semifinals at ONE on Prime Video 1 on August 27, 2022.[29] Two days before the bout was supposed to take place, Rodtang failed to provide a sample for a mandatory hydration test and was not permitted to weigh in. Rodtang withdrew from the fight on August 25, due to illness.[30]

Rodtang made his fourth defense title against the reigning ONE Strawweight Muay Thai champion Joseph Lasiri at ONE on Prime Video 4 on November 19, 2022.[31] He defended the title via unanimous decision.[32][33]

Rodtang was scheduled to face Daniel Puertas in a kickboxing match on January 14, 2023, at ONE on Prime Video 6.[34] However, Puertas faced Superlek Kiatmuu9 for the vacant ONE Flyweight Kickboxing World Championship and Rodtang instead faced Jiduo Yibu.[35] At weigh-ins, Rodtang weighed in at 136.5 pounds, 1.5 pounds over the flyweight limit. The bout proceeded at catchweight with Rodtang fined 20% of his purse, which went to his opponent Yibu.[36] He won the fight via unanimous decision.[37]

Rodtang was scheduled to challenge Superlek Kiatmuu9 for the ONE Flyweight Kickboxing World Championship at ONE Fight Night 8 on March 25, 2023.[38] However, Rodtang withdraw from the bout due to injury and was replaced by Danial Williams.[39]

Rodtang defended his title against Edgar Tabares on May 5, 2023, at ONE Fight Night 10.[40] He defeated Tabares in the second round by KO via elbow. The win earned him a $100,000 Performance of the Night bonus.[41]

Rodtang lost by decision to Superlek Kiatmuu9 at ONE Friday Fights 34 on September 22, 2023, but Superlek missed weight so Rodtang's title was not in contention.[42][43]