Jayden DeLeon

Jayden DeLeon (born 26 December 2007) is an American track and field sprinter who specializes in the 400 meters.

Early life He attended Oakland Mills High School in Columbia, Maryland, where he competed in track and field. He committed to attend LSU. He trains with The House Running Club based in Washington, D.C.

Career In 2025, DeLeon attended New Balance Nationals Outdoor to run the 200 meters and the 400 meters. He ran a then PR of 21.03 seconds and 46.33 seconds respectively in the events. He also ran 6.93 seconds in the 60 meters, placing third. In March, he competed in the New Balance Indoor Nationals in the 400 meters, placing second behind Quincy Wilson with a time of 45.38 seconds. The result was a photo finish, with DeLeon finishing 0.009 seconds behind Wilson. In the same meet, he ran 20.77 seconds in the 200 meters.

On 19 June 2026, DeLeon competed in the 400 meters at the USATF U20 Outdoor Championships held in Eugene, Oregon and competed in the 200 meters at the Nike Outdoor Nationals, which were adjacent to each other. This time, he beat Wilson with a PB of 44.52 seconds, qualifying for the World Athletics U20 Championships on the U.S. team. This made DeLeon the second fastest 400m high schooler in the US ever after Wilson. Two days later, DeLeon won the 200m at Nike Outdoor Nationals with a time of 20.68.

On the evening of 7 August 2026, DeLeon won the 400 meters at the 2026 World Athletics U20 Championships with a and personal best of 44.47 seconds to win ahead of Wilson and Leendert Koekemoer. Two days later, he ran the anchor leg for the 4 × 400 metres relay to win gold for the USA with a World U20 Lead of 3:01.39, the third fastest time in the age group's history.