Note: Single-source report; awaiting corroboration.
The Men’s 50m Breaststroke World Record, which stood for nine years, faced significant challenges at the World Championships in Kazan 2015 and Budapest 2017. Cameron van der Burgh first lowered the record at Kazan 2015.
After van der Burgh’s achievement, Adam Peaty broke the Men’s 50m Breaststroke World Record three times consecutively, ultimately becoming the first swimmer to finish the event in under 26 seconds.
These record-breaking performances at the World Championships in Kazan and Budapest highlight the event’s notable progression.