Kulabdam Sor.Jor.Piek-U-Thai

Somboon Meesitdee (; born September 24, 1998), known professionally as Ratchasiesan Laochokcharoen , formerly Kulabdam Sor.Jor.Piek-U-Thai , is a Thai professional Muay Thai fighter and boxer.

Biography

In 2016 Kulabdam became very popular at the Channel 7 Stadium with a streak of knockouts.

For his results during the year 2017 he received the most prestigious distinction in muay thai the Sports Writers Association Fighter of the Year Award.

In February 2018 he won the Lumpinee 135lbs title against Genji Umeno in Tokyo.

ONE Championship

In September 2019, Kulabadam made his debut for ONE Championship at ONE Championship: Immortal Triumph. He scored a knockdown in the first round and won a unanimous decision against Bobo Sacko in Ho Chi Minh City, Vietnam.

He faced Sangmanee Sor Tienpo on August 21, 2020 in the ONE Bantamweight Muay Thai Tournament Semi-Final. Kulabdam knocked out Sangmanee in the first round to advance to the Tournament Final, where was set to face Saemapetch Fairtex. Soon after, it was announced that Saemapetch was injured and Kulabdam would face Rodlek P.K. Saenchaimuaythaigym in the Final.

On August 28, 2020, Kulabdam was dominated in the ONE Bantamweight Muay Thai Tournament Final, getting knocked down twice, and lost by unanimous decision to Rodlek.

On December 8, 2020 Kulabdam faced Shadow Thor.Thepsutin at the Lumpinee Stadium Birthday show. He won the fight by knockout in the second round.

Kulabdam faced Saemapetch Fairtex on May 28, 2021 at ONE Championship: Full Blast. He lost by first-round knockout via punch to the body.

Kulabdam faced Sangmanee P.K.Saenchai on January 27, 2023, at ONE Lumpinee 2. He won the fight via unanimous decision.

Kulabdam faced Muangthai P.K.Saenchai on March 17, 2023, at ONE Friday Fights 9. He lost the fight via knockout in the third round.

Kulabdam faced John Lineker on January 11, 2025, at ONE Fight Night 27. At the weigh-ins, both fighters failed multiple hydration tests and the bout proceeded at a catchweight of 150.75 pounds. He won the fight via unanimous decision.

Personal life

Kulabdam has a younger brother who is also a fighter named Tai Sor-Jor Piekuthai.

Titles and accomplishments

ONE Championship 2020 ONE Bantamweight Muay Thai Tournament runner-up Lumpinee Stadium 2018 Lumpinee Stadium Lightweight (135 lbs) Champion 2018 Lumpinee Stadium Fight of the Year (June 5 vs Muangthai PKSaenchaimuaythaigym) 2019 Lumpinee Stadium Super Lightweight (140 lbs) Champion 2019 Lumpinee Stadium Fight of the Year (May 10 vs Nuenglanlek Jitmuangnon) Professional Boxing Association of Thailand (PAT) 2017 Thailand Lightweight (135lbs) Champion

Awards 2017 Sports Writers Association of Thailand Fighter of the Year

Fight record

Professional boxing record