Kaylyn Brown

Kaylyn Brown (born 31 December 2004) is an American sprinter.

Early life
From Charlotte, North Carolina, she attended Mallard Creek High School. From 2023, she attended the University of Arkansas.

Career
She won a gold medal as part of the victorious Mixed 4x400m relay team at the 2022 World Athletics U20 Championships in Cali, Colombia. In the preliminary round the team of Brown, Charlie Bartholomew, Madison Whyte and Will Sumner set a meeting record time of 3:18.65.

In April 2024, she broke 50-seconds for the 400 metres for the first time, running 49.95 seconds during the Tom Jones Invitational held in Gainesville, Florida. With the run she met the qualifying standard for the 2024 Paris Olympics.

She ran a new personal best time of 49.47 seconds for the 400 metres at the SEC Outdoor Championships in Gainesville, Florida on 11 May 2024. It placed her fourth all-time for a College athlete and was the fastest all-time performance by a 19-year-old American and second globally for her age, only behind East German athlete Grit Breuer who ran 49.42 in 1991. At the NCAA Championships in Eugene, Oregon on 8 June 2024 she lowered her personal best to 49.13 seconds.

She was included in the United States relay pool for the 2024 Paris Olympics.