The ONE Championship lightweight title bout between Tang Kai (19-4, 8-1 ONE) and Shamil Gasanov (16-1, 6-1 ONE) has been rescheduled to May 15 at ONE Fight Night 43. The post does not provide a reason for the date change. Tang Kai is the current ONE lightweight champion defending his belt. Gasanov is a rising contender with an impressive record in the promotion. This title fight is expected to be a significant matchup in ONE's lightweight division.
The ONE Championship lightweight title defense headlining ONE Fight Night 43 has been rescheduled, with champion Tang Kai set to face contender Shamil Gasanov on May 15.
Tang Kai enters the bout carrying a 19-4 overall record and an 8-1 mark inside ONE Championship, where he holds the lightweight title. The Chinese fighter has established himself as one of the promotion's most decorated champions in the 155-pound division.
Gasanov brings a 16-1 overall record into the contest along with a 6-1 showing in ONE Championship. The rising contender's single promotional loss has done little to slow his ascent through the lightweight ranks, and his near-flawless record positions him as a credible threat to Tang Kai's title.
No reason was given for the rescheduling from the original date to May 15.
Why it matters
- Tang Kai's title is on the line, meaning the ONE lightweight landscape could look entirely different heading into the second half of 2026
- Gasanov's 6-1 ONE record marks him as one of the most dangerous challengers the division has produced in recent memory
- The outcome will reshape the lightweight rankings and clarify who the division's top contenders are moving forward
