2018 FINA World Swimming Championships (25 m) – Men's 50 metre butterfly
The Men's 50 metre butterfly competition of the 2018 FINA World Swimming Championships (25 m) was held on 14 and 15 December 2018 at the Hangzhou Olympic Sports Center. Records. Prior to the competition, the existing world and championship records were as follows. The following new records were set during this competition: Results. Heats. The heats were started at 9:52. Swim-off. The swim-off was held on 14 December at 11:07. Semifinals. The semifinals were held at 19:33. Final. The final was held at 19:41. 2018