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American David Oliver was looking to break the world record in the 110-metre hurdles, after posting the fastest time this year in Paris last week of 12.89 - just 0.02 seconds short of Dayron Robles' world record.
The powerfully built American was unable to achieve that feat, though he did win the event in a meet record time of 13.01 seconds.
The Olympic bronze medallist won ahead of fellow American Ryan Wilson, who finished in 13.13.
Jamaican Dwight Thomas was third in 13.29.
On a night that saw the sprint events dominated by athletes from the US, Tyson Gay took the 200 metres. Gay held off Jamaican Yohan Blake in the closing metres to set a new meet record of 19.72 seconds.
In the women's competition, American Carmelita Jeter and Veronica Campbell-Brown of Jamaica were the two runners to watch in the 100 metres. It was Jeter who took top spot with a time of 10.82 seconds.
World leader Lolo Jones took the women's 110-metre hurdles in 12.63 seconds - a personal best this season.