The ONE Championship lightweight title bout between champion Tang Kai (19-4, 8-1 ONE) and challenger Shamil Gasanov (16-1, 6-1 ONE) has been rescheduled to May 15, 2026, at ONE Fight Night 43. The fight was previously scheduled for a different date but has been moved to the new event. Tang Kai currently holds the ONE lightweight championship and will be making a defense against the highly-ranked Gasanov. Gasanov has been on an impressive run in ONE Championship with only one loss in his seven promotional appearances. The rescheduling maintains both fighters' preparation timelines without significant disruption.
ONE Championship's lightweight title picture has a new date on the calendar. The promotion has officially rescheduled the lightweight championship bout between champion Tang Kai and challenger Shamil Gasanov, moving the fight to May 15, 2026, at ONE Fight Night 43.
Tang Kai enters the contest as the reigning ONE lightweight champion. His overall professional record stands at 19-4, with an 8-1 mark inside the ONE Championship promotion, underscoring his dominance since establishing himself at the top of the division.
Gasanov arrives as one of the most dangerous challengers the lightweight division has produced in recent memory. The Russian contender carries a professional record of 16-1 and has gone 6-1 across his ONE Championship appearances, making him one of the most successful fighters to come through the promotion's lightweight ranks. His single blemish in ONE remains the only thing standing between him and an unblemished run to a title shot he has now earned.
Why it matters
- Tang Kai puts his ONE lightweight championship on the line for another defense, keeping the division's title picture in focus heading into mid-2026.
- Gasanov's 6-1 ONE record makes him a legitimate threat, and a victory would hand the promotion a new lightweight champion with considerable upside.
- The rescheduling to ONE Fight Night 43 preserves both fighters' preparation timelines, meaning neither camp faces a compressed or extended camp heading into the biggest fight of the matchup's stakes.
- The lightweight division's hierarchy will be decisively shaped by whoever emerges with the belt on May 15.
