Great Britain's Adam Peaty set a new world record in the men's 100-metre breaststroke event at the 2016 Rio Olympics on Saturday. In the process, the 21-year-old broke his own record, according to Pat Forde of Yahoo Sports:
Adam Peaty breaks his own world record in 100 breast. Dominant swim. Read time of .55 off start may be fastest legal start I've seen.
— Pat Forde (@YahooForde) August 6, 2016
The new global-best time is 57.55 seconds, per BBC Sport.