Pan Zhanle of China won the Olympic gold medal in the men's 100-meter freestyle, breaking his own world record with a time of 46.40 seconds.
Pan Zhanle's record-breaking swim earned China's first swimming gold medal at the Paris Olympics.
## What happened?
The 19-year-old Pan Zhanle edged Kyle Chalmers of Australia, who clocked a 47.48 for silver.
Pan Zhanle finished ahead of Romanian bronze medalist David Popovici in 47.49.
The previous world record was 46.80, set by Pan Zhanle at the February world championships in Doha.
## Why it matters for Pan Zhanle
Pan Zhanle's win is significant as it comes amidst doping allegations surrounding the Chinese swimming team.
Pan Zhanle has not been implicated in any of the doping allegations.
Chinese swimmers in Paris have pushed back strongly against those accusations.
## What comes next?
The World Anti-Doping Agency (WADA) put out a statement on Tuesday in response to food contamination scenarios being used to clear athletes who test positive.
WADA is generally concerned about the number of cases that are being closed without sanction.
Pan Zhanle was asked about the testing and said it all seemed routine to him.
Pan Zhanle said the tests were done under all the regulations.
The tests did not influence his performance, according to Pan Zhanle.
Pan Zhanle described the moment as "magical" and the record as "not just for the Chinese team, but for the world".
The win is a small step by breaking this record, said Pan Zhanle.
Kyle Chalmers won gold in the 100 free in the 2016 Rio de Janeiro Games.
Chalmers was the silver medalist three years ago in Tokyo behind American Caeleb Dressel.
Dressel did not qualify this time.
Pan Zhanle's record-breaking swim is a notable achievement in the swimming world.
The Paris Olympics have seen intense competition in the pool.
No world marks had been broken through the first four days in the pool at the Paris Games.
Pan Zhanle's win marks a significant moment for Chinese swimming.