In June 2023, he won the 1500 metres race at the Portland Track Festival in Oregon in 3:34.12, closing the race with 56.40s for the final 400m. In January 2025, he acted as pacemaker at the
Houston Half Marathon as
Conner Mantz broke the American half marathon national record. In April 2025, he finished third at the Boston 5k, running a time of 13:37. He was added as a challenger to the men’s long-distance field at the
2025 Grand Slam Track event in
Miami, where he finished seventh in the 3000 metres race on 2 May 2025. In August 2025, he won the
Falmouth Road Race. On 1 November 2025, Kemboi won the Abbot Dash 5k in New York City. ==Statistics==