(Reuters) - Britain’s Dina Asher-Smith clocked her fastest time outside of a major championships as she powered to victory in the 200 metres at the third Diamond League meeting of the season in Florence on Thursday.

The 25-year-old world champion laid down a strong marker ahead of the Tokyo Olympics with a time of 22.06 seconds that left her more than half a second ahead of the Ivory Coast’s Marie-Josee Ta Lou.