Justin Gatlin was crowned overall Diamond League champion in the 100m after winning the final race of this year’s series in 9.98 seconds.
Qatar’s Femi Ogunode was also given the same time, but Gatlin got the nod with France’s Jimmy Vicaut third in 9.99.
American Gatlin, 33, has run personal bests for the 100m and 200m this season but finished runner-up to Usain Bolt in both events in the World Championships.
The Jamaican opted to end his season rather than run in Brussels.
Gatlin also runs the 200m later on Friday, while several British athletes are also in action.
