Kibiwot made his international debut at the
2013 African Youth Athletics Championships, taking fifth in the 2000 m steeplechase event. He raised his profile in 2015 first by winning the Kenyan junior trials and the gold medal at the
2015 African Junior Athletics Championships, seeing off Ethiopia's reigning Youth Olympic champion Wogene Sebisibe Sidamo in
Addis Ababa. Kibiwot capped that season with a personal best of 8:22.10 at the
London Diamond League meet and ranked as the second-fastest under-20 athlete that year behind another Kenyan,
Nicholas Kiptanui Bett. Kibiwot made his breakthrough into the senior ranks in the 2016 season. That year he was prominent on the
2016 Diamond League, starting with a personal best of 8:09.25 to place third in
Doha. He finished second behind
Ezekiel Kemboi in
Beijing and won his first race at
Athletissima in Lausanne. He also took fifth place at the
Herculis and
Memorial Van Damme meets. Kibiwot ran at the
2016 Athletics Kenya Olympic Trials but withdrew from the final. He was selected for the
2016 African Championships in Athletics, where he won his first major medal – a bronze behind Ethiopia's
Chala Beyo and
Tolosa Nurgi. At the
2024 Paris Olympics, Kibiwot earned a bronze medal in the
3000 m steeplechase. At 8:06.47, he finished six hundredths of a second behind American
Kenneth Rooks. ==Personal bests==