The Men's 100 metre breaststroke competition at the 2019 World Championships was held on 21 and 22 July 2019.

Adam Peaty Adam George Peaty (born 28 December 1994) is an English competitive swimmer who specialises in the breaststroke. He won the gold medal in the 100 metre breaststroke at the 2016 Summer Olympics, the first by a male British swimmer in 24 years, ...

broke the world record with a time of 56.88 in the semi-final, the first man to swim under 57 seconds in this event, and went on to win in the final.

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 held on 21 July at 11:54.

Semifinals

The semifinals were held on 21 July at 20:51.

Semifinal 1

Semifinal 2

Final

The final was held on 22 July at 20:02.Final results
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References

{{DEFAULTSORT:2019 World Aquatics Championships - Men's 100 metre breaststroke Men's 100 metre breaststroke