ZURICH (AP) — Usain Bolt had to work hard for his 100-meter victory in 9.90 seconds at the Weltklasse Diamond League meeting on Thursday.

Bolt had the slowest reaction time out of the starting blocks and was led deep into the race by fellow Jamaican Nickel Ashmeade, running two lanes to his left.

The world and Olympic champion gritted his teeth and muscled through the slight headwind to reach the front at the 85-meter mark.

Ashmeade clocked 9.94 for second place and world silver medalist Justin Gatlin of the United States was third in 9.96.

Bolt put on a typical pre-race act for the crowd, pressing his hands together in a prayer-like pose before breaking into karate-style moves.