Derval O'Rourke has run under 13 seconds for the first time this year IAAF Super Grand Prix meeting in Lausanne.
Last summer's European silver medallist clocked 12.98secs, however, it was only good enough for fifth position in the 100m hurdles.
The race was won by Josephine Onyia of Spain in 12.82secs ahead of the US pair of Nichole Denby and Damu Cherry.
