Kimani Jack

Kimani Jack (born 31 January 2004) is a British high jumper. He made his senior debut representing Great Britain at the 2025 European Athletics Team Championships having been the runner-up at the 2025 British Indoor Athletics Championships. Competing in the United States, he won the 2026 NCAA Outdoor Championships.

Biography A member of Shaftesbury Barnet Harriers, Jack attended St Albans School, Hertfordshire where he achieved A*A*A at A Level. He then studied History at the University of Birmingham. At the university, he competed for the track and field team. In 2024, Jack won both the indoor and outdoor high jump titles at British Universities and Colleges Sport (BUCS) championships. He won the outdoor title again in 2025.

In February 2025, he jumped a personal best height of 2.18 metres whilst competing in the Czech Republic. He was runner-up at the 2025 British Indoor Athletics Championships in Birmingham later that month, with a best jump of 2.15 metres to finish second behind Otis Poole.

Jack was selected for the British team to compete at the 2025 European Athletics Team Championships in Madrid in June 2025, jumping a personal best 2.21 metres on his senior international debut to place seventh, helping the Great Britain team to finish in fifth place overall. He was named in the British team for the 2025 European Athletics U23 Championships in Bergen, Norway, placing eighth in the final. Jack placed third at the 2025 UK Athletics Championships with a jump of 2.14 metres on 2 August 2025 in Birmingham, clearing the same height as joint-winners Divine Duruaku and Charlie Husbands but awarded third on countback.

Having completed a graduate transfer to the University of Georgia in the United States, on 10 January 2026, Jack set a new personal best with a 2.25 metres clearance at the Clemson Invitational in Clemson, South Carolina. The following month he improved to 2.28 metres to win the SEC Indoor Championships. On 14 March 2026, he won a bronze medal with a jump of 2.21 metres at the 2026 NCAA Division I Indoor Track and Field Championships. At the close of the indoor season, Jack was named an NCAA D1 All-American and in the All-SEC Indoor T&F First Team.

In May 2026, during the outdoor season, Jack cleared a personal best 2.31 metres at the Torrin Lawrence Memorial in Athens, Georgia. It was the first time he had breached the 2.30 barrier. The jump broke the University of Georgia school record which had stood one since 1985, and meant Jack held both the indoor and outdoor records for the university. Moreover, it moved him to number 22 on the all-time collegiate list, and to seventh on the British all-time list. On 12 June 2026, Jack jumped 2.28 m to win the 2026 NCAA Outdoor Championships in Eugene, Oregon. The following weekend, Jack cleared 2.24 metres to place second behind Joel Clarke-Khan at the 2026 UK Athletics Championships in Birmingham. On 10 July, he placed second with a clearance of 2.30m behind Oleh Doroshchuk at the 2026 Herculis Diamond League event in Monaco. He was selected to represent England at the 2026 Commonwealth Games in Glasgow, winning the bronze medal with a jump of 2.20 metres, having passed his final attempt at 2.25 metres to aim for gold with 2.28 m. Two weeks later, he placed fourth with a clearance of 2.23 metres at the 2026 European Championships in Birmingham.