On August 6 2017, Thiam won the heptathlon at the 2017 World Championships in London, becoming the first Belgian to win a World Athletics Championships gold medal.
Thiam won the heptathlon at the 2017 World Championships in London. This was on August 6 2017. Thiam was becoming the first Belgian. This was on August 6 2017. This was to win a World Athletics Championships gold medal.