Elijah Mattix Kosiba (born 3 April 2002) is an American high jumper.
He was runner-up at the 2025 USA Indoor Track and Field Championships.
Early life.
He attended Rensselaer Central High School in Indiana and Grand Valley State University, Michigan.
Career.
He finished fourth at the US Track and Field Championships in 2023. He competed at the 2023 Pan American Games in Santiago.
Competing in Allendale, Michigan in December 2024, he tied the NCAA DII men’s indoor high jump record set in 2007, with a personal best 2.30 metres clearance.
He was runner-up at the 2025 USA Indoor Track and Field Championships in New York, on 23 February 2025. He was selected for the 2025 World Athletics Indoor Championships in Nanjing in March 2025, where he finished in fourth place overall on countback as one of four athletes who cleared 2.28 metres, including silver and bronze medalists Hamish Kerr and Ratmond Richards.