The action was taking place in Zurich
Thomas Barr has finished sixth in the final of the 400 metre hurdles in the Diamond League.
The Waterford athlete, who missed out on a medal place by just 0.05 seconds at Rio 2016, completed the race in a time of 49.34 in Zurich.
Kerron Clement, the winner of Olympic gold, was victorious again.
Barr had set an Irish national record time of 47.97 in the Rio 2016 final.
Clement on the line! Trailing with metres to go, Kerron Clement pushed & reined in Javier Culson to snatch the 400mH win in 48.72s #ZurichDL— IAAF Diamond League (@Diamond_League) September 1, 2016