Jonathan Sacoor

Jonathan Sacoor (born 1 September 1999) is a Belgian sprinter specialising in the 400 metres.

Career He first came to prominence early 2018, winning a bronze medal in the 4 × 400 metres relay at the 2018 World Indoor Championships in a new national indoor record of 3:02.51. Later that year, he became the first ever Belgian under-20 athletics world champion by winning the gold medal in the 400 m individual race at the 2018 IAAF World U20 Championships. He then followed up this performance with a gold in the 4 × 400 metres relay at the 2018 European Athletics Championships

He was a member of the University of Tennessee track and field team from 2019 to 2021.

In 2024, he was on the team that won the gold for Belgium in the men's 4 × 400 m relay at the World Indoor Championships in Glasgow, Scotland and at the World Athletics Relays in The Bahamas, he was on the teams that qualified Belgium for the 4 × 400 metres mixed relay and the men's 4 × 400 metres relay at the 2024 Summer Olympic Games in Paris, France. Later that same year, he was on the Belgian men's 4 × 400 metres relay team that won the gold medal at the European Athletics Championships and he ran a personal best in the final of the individual 400 metres, finishing 4th and posting for the first time in his career a sub 45 seconds. At the 2024 Summer Olympics, he ran the heats and finals of the mixed and men's 4 × 400 metres relay, finishing 4th in both.

In March 2025, he won a bronze medal at the 2025 European Athletics Indoor Championships in Apeldoorn, The Netherlands as a member of the Belgium men's 4 × 400 m relay team. In September at the 2025 World Athletics Championships in Tokyo, Japan he ran with the Belgian team in the heats of the mixed 4 × 400 metres relay qualifying the team for the final where he was replaced by Alexander Doom and the team won the bronze medal. He also participated in the heats and final of the men's 4 × 400 metres relay, finishing fourth in the final.

In March 2026, he was selected for the relays at the 2026 World Athletics Indoor Championships in Toruń in Poland. On the second day of competition, on 21 March, he won the gold medal in the first ever indoor mixed 4 × 400 metres relay running alongside Ilana Hanssens, Julien Watrin and Helena Ponette Their time of 3:15.60 was the fastest short track performance recorded for the event. One day later, on 22 March, he won a silver medal in the men's 4 × 400 metres relay running alongside Christian Iguacel, Julien Watrin and Alexander Doom. In June, he achieved the European Championship qualifying standard for the 400 meters at the Montreuil International Track & Field Meeting in France. At those 2026 European Athletics Championships in Birmingham, England, he finished a disappointing eighth in his semi-final of the individual 400 metres and finished fourth with the Belgium men's relay team in the 4 × 400 metres relay.

Personal life His father is Mozambican, of Portuguese and Indian descent, his mother is Dutch.

International competitions 1Did not finish in the final

Personal bests Outdoor 200 metres – 20.90 (+0.4 m/s, Bruxelles 2024) 400 metres – 44.98 (Rome, 2024) Indoor 200 metres – 21.58 (Ghent 2018) 400 metres – 46.30 (Apeldoorn 2018)