Rodtang had his first Muay Thai fight at the age of 8 to make money and help his family. At 14, he moved to Bangkok to join the Jitmuangnon gym. On January 2, 2016, Rodtang won his first Muay Thai title when he defeated Petchprakan Kor. Klanbut by decision to claim the MAX Muay Thai 125lb Championship. On February 6, 2016, he successfully defended his MAX 125lb title belt against Petchprakan, winning by decision once again. On July 29, 2017, he defeated Chai Sor.Jor.Toypadriew to win the vacant Omnoi Stadium 130lb title. Rodtang retained the title on April 28, 2018 by defeating Phetnamngam Aor.Kwanmuang. On June 16, 2018, Rodtang faced Japanese kickboxing superstar Tenshin Nasukawa under kickboxing rules at Rise 125 in Tokyo, the fight was very exciting and contested. The judges gave a draw after 5 rounds and an extra round had to be fought, Rodtang lost that round and the fight but many observers thought he had done enough to get the win prior to that. On August 2018, Rodtang faced Chorfah Tor Sangtiennoi. This fight would later be elected Rajadamnern Stadium Best Fight of the Year. Throughout 2017 and 2018, Rodtang went on a 10-fight winning streak in the stadiums which culminated in a fight against Rungkit Morbeskamala for the vacant Rajadamnern 130lbs title. Rodtang lost by decision. On August 16, 2019, Rodtang faced Saeksan Or. Kwanmuang in the Songkhla Province, the fight was deemed underwhelming considering the fight style of the two participants. The rematch a month later was the back and forth war fans expected and received the award for Fight of the year at Rajadamnern Stadium. On January 31, 2020, Rodtang faced Yodlekpet Or. Pitisak in the biggest Muay Thai card of the year in Phuket. Despite a size differential and a side bet of 1 million baht from the Teeded99 camp in play, Rodtang dominated his opponent and won a clear decision against arguably one of his best opponent yet. Rodtang suffered his first loss since October 25, 2018 against Kaonar P.K.SaenchaiMuaythaiGym at Rajadamnern Stadium on February 27, 2020.
After signing with ONE Championship, Rodtang made his ONE Super Series debut against Sergio Wielzen on September 22, 2018 at in Jakarta. He defeated Wielzen by unanimous decision. 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. 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. In his first title defense, Rodtang defeated Walter Goncalves by split decision at on October 13, 2019. Rodtang is scheduled to make his second title defense of the ONE Flyweight Muay Thai World Championship in a rematch against Jonathan Haggerty at on January 10, 2020. 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. Rodtang will face Petchdam Petchyindee Academy for a third time as he is scheduled to defend the ONE Flyweight Muay Thai World Championship a third time at on July 31, 2020.
