Watch The Weigh-Ins & Hydration Tests For ONE Fight Night 39: Rambolek Vs. Dayakaev
Before the world’s greatest martial artists can step into the ring at ONE Fight Night 39: Rambolek vs. Dayakaev on Prime Video, they must clear one final hurdle.
ONE Championship will kick off its 2026 U.S. primetime calendar at Bangkok’s Lumpinee Stadium this Friday, January 23. But before the show can go on, every athlete must successfully weigh in and pass their hydration tests to ensure they’re medically cleared and ready to perform at their best.
Fans can watch the official ONE Fight Night 39 Weigh-Ins & Hydration Tests by clicking play on the video below beginning at 5 a.m. ET/5 p.m. ICT on Thursday, January 22.
In the main event, bantamweight Muay Thai knockout artists Rambolek Chor Ajalaboon and Abdulla “Smash Boy” Dayakaev will finally step into the ring for their long-awaited showdown.
These two dangerous strikers were originally scheduled to collide at ONE Fight Night 37 last November, but Dayakaev was forced to withdraw from the contest during fight week after being diagnosed with a staph infection. Now fully healthy, both men are ready to kick off ONE Championship’s 2026 U.S. primetime calendar with fireworks.
Rambolek, the first athlete to win a six-figure contract from the ONE Friday Fights event series, has been on fire since moving to Superbon Training Camp.
Under the guidance of ONE Featherweight Kickboxing World Champion Superbon and former bantamweight king Nong-O Hama, the 22-year-old Thai phenom has extended his winning streak to four, with his last two triumphs coming via second-round knockout. A victory here could position him as the next challenger for his rival’s teammate, reigning ONE Bantamweight Muay Thai World Champion Nabil Anane.
Standing across from the Thai phenom will be Dayakaev, who enters the clash with tremendous momentum, too. The Russian destroyer has knocked out his last four opponents, and he’s riding an all-time high in motivation. Fresh off getting married, buying a home for his parents, and purchasing his first car, “Smash Boy” is hunting for his fifth straight knockout and another US$50,000 performance bonus.
Also featured on the card is a pivotal welterweight MMA showdown between Tongan-Australian juggernaut Isi “Doxz” Fitikefu and undefeated American sensation Chase “Mannimal” Mann, with the winner potentially earning a shot at two-division king Christian Lee’s ONE Welterweight MMA World Title.
Fitikefu brings a 9-1 record and a BJJ black belt into the battle. The multi-time Australian MMA Champion is coming off a pair of impressive performances, having submitted Valmir da Silva and snapped Hiroyuki “Japanese Beast” Tetsuka’s five-bout winning streak. Now, “Doxz” is determined to secure a highlight-reel victory that will put him in position for a title shot.
But looking to throw a monkey wrench into that master plan is Mann, an undefeated powerhouse making his promotional debut with a pristine 6-0 record and an 80 percent finishing rate.
The former record-holding powerlifter has proven dangerous in all areas, earning victories via both submission and knockout. If the “Mannimal” can keep his record clean and score the biggest win of his career, the welterweight MMA division will have a dangerous new contender on its hands.
ONE Fight Night 39 features more MMA, Muay Thai, kickboxing, and submission grappling matches, including the highly anticipated promotional debut of 18-year-old prodigy Helena Crevar. Check out the full card for ONE Championship’s first U.S. primetime event of the year below.
Fight Card For ONE Fight Night 39
- Rambolek Chor Ajalaboon vs. Abdulla Dayakaev (Muay Thai – Bantamweight)
- Kongthoranee Sor Sommai vs. Asadula Imangazaliev (Muay Thai – Flyweight)
- Isi Fitikefu vs. Chase Mann (MMA – Welterweight)
- Chihiro Sawada vs. Natalie Salcedo (MMA – Women’s Atomweight)
- Mohammad Siasarani vs. Pedro Dantas (Kickboxing – Featherweight)
- Helena Crevar vs. Teshya Noelani Alo (Submission Grappling – Bantamweight)
- Bokang Masunyane vs. Ryohei Kurosawa (MMA – Strawweight)
- Vladimir Kuzmin vs. Mohanad Battbootti (Muay Thai – Featherweight)
- Carlo Bumina-ang vs. Marcos Aurelio (MMA – Bantamweight)
