The ONE Championship lightweight title fight between champion Tang Kai (19-4, 8-1 ONE) and challenger Shamil Gasanov (16-1, 6-1 ONE) has been rescheduled to May 15 at ONE Fight Night 43. The bout was originally planned for a different date but has now been moved to this new event. Tang Kai currently holds the ONE lightweight championship and will be defending his title against the surging contender Gasanov, who has compiled an impressive 6-1 record inside the ONE circle. The reason for the date change was not specified in the announcement. This represents a significant championship matchup in ONE's lightweight division between two highly skilled fighters with strong records.
The ONE Championship lightweight title fight between champion Tang Kai and challenger Shamil Gasanov has been officially rescheduled, with the bout now set for May 15 at ONE Fight Night 43. The card change was announced without a stated reason for the shift from the original date.
Tang Kai enters the contest as the reigning ONE lightweight champion, carrying an overall professional record of 19-4 and an 8-1 mark inside the ONE circle. The Chinese striker has established himself as one of the most technically refined fighters in the division, and this defense will be another test of his championship credentials.
Shamil Gasanov steps in as the challenger off a strong run within the promotion, posting a 6-1 ONE record as part of a 16-1 overall slate. The Dagestani contender has built momentum steadily through the lightweight ranks and arrives at this title shot having demonstrated both finishing ability and championship-caliber consistency.
Why it matters
- Tang Kai's title reign faces its next serious challenge from one of the division's most active and accomplished contenders
- Gasanov's 6-1 ONE record signals a fighter who has earned this shot through sustained performance rather than a single breakthrough win
- The rescheduled placement on ONE Fight Night 43 keeps the lightweight title picture moving after the date change created brief uncertainty
- A win for either man would send a strong statement about the direction of the ONE lightweight division heading into the second half of 2026
