The ONE Championship lightweight title fight between champion Tang Kai and challenger Shamil Gasanov has been rescheduled to May 15 at ONE Fight Night 43. Tang Kai brings a 19-4 overall record and 8-1 ONE record into the championship defense. Gasanov enters with a 16-1 overall record and 6-1 mark in ONE Championship. The bout was originally scheduled for a different date but has been moved to the new May 15 event. Both fighters are among the top lightweights in ONE Championship. The title fight will be a featured attraction on the ONE Fight Night 43 card.
ONE Championship has reshuffled its lightweight title picture, officially moving the championship bout between Tang Kai and Shamil Gasanov to May 15 at ONE Fight Night 43.
The contest was previously slated for an earlier date before the promotion shifted it to the new card, where it will serve as a featured attraction.
Tang Kai enters the fight as the reigning ONE lightweight champion, bringing a 19-4 overall record and an 8-1 mark inside the ONE Championship cage. The Chinese fighter has established himself as one of the most dominant lightweights the promotion has produced, and this defense represents another opportunity to cement that status.
Gasanov steps in as the challenger carrying a 16-1 overall record and a 6-1 run in ONE Championship, making him one of the most compelling threats Tang Kai has faced. The 6-1 ONE mark signals a fighter who has worked his way methodically through the division's upper tier to earn this title shot.
Why it matters
- Tang Kai's 8-1 ONE record underlines his grip on the division, but Gasanov's near-flawless 6-1 ONE run means the challenger arrives with genuine momentum
- A title change would immediately reorder the ONE lightweight rankings and open a new chapter at the top of the division
- The rescheduling to ONE Fight Night 43 on May 15 gives the bout a higher-profile platform and positions it as a centerpiece of the card






