Gay, world 100 and 200m champion in 2007 and the second fastest 100m runner in history behind Usain Bolt, has yet to win an Olympic medal.

He came through powerfully ahead of the sprinter who had beaten him at the United States trials, Gatlin, who clocked 10.03, and Frenchman Christophe Lemaitre in 10.08.

Dai Greene indicated he is returning to form at a good time, setting a personal best in the 400m hurdles in 47.84.

The Welshman was second to the man he overhauled to last year's world title, Javier Culson, who won in a world-leading 47.78.

Greene almost chased down the Puerto Rican in the final few metres to deliver a strong statement of intent four weeks before the heats get under way in London on Friday, August 3.


Kenyan David Rudisha was half a second outside his own world record attempt at the 800m but still set a new best time in the world for the year with a 1 min 41:54sec, obliterating the rest of the field.

Christine Ohuruogu also showed encouraging signs of form a month before she prepares to defend her Olympic 400m title.

The Londoner, 28, has only broken 50 seconds twice – in winning the 2007 World Championships and Olympics gold four years ago.

She never threatened the winner, Amantle Montsho of Botswana in 49.77, but set a season's best of 50.59 to finish fourth.

Britain's Lisa Dobriskey found the pace too hot to handle in the women's 1500m as Moroccan Mariem Alaoui Selsouli outsprinted Turkey's Asli Cakir Alptekin to clock the fastest time in the world this year – 3:56:15.

Dobriskey, still struggling to regain full fitness after a pulmonary embolism, was eighth in 4:02, but improved her season's best by 10 seconds.

Shara Proctor, who broke the British long jump record in the recent Olympic trials, finished second with a jump of 6.65m in Paris, in a competition won by Russian Yelena Sokolova in 6.70m.

Britain's Tiffany Porter enjoyed a good run to finish third in the 100m hurdles in 12.74 as Australian Sally Pearson won in a new world-leading time this year of 12.40, ahead of American Virginia Crawford in 12.59.

Britain's Steve Lewis finished fourth in the pole vault with 5.52m, with Frenchman Renaud Lavillenie winning with 5.77m.

Mo Farah, who set the world-leading 5,000m time of 12:56.98 in Eugene last month, was given a reminder of the task he faces to win 5,000m gold in London as Ethiopian Dejen Gebremeskel won in 12:46.81 while his compatriot Hagos Gebrhiwet set a new world junior record of 12:47.53 in second, the duo dominating a high-class field featuring 10 Kenyans and five other Ethiopians, including world record holder Kenenisa Bekele.

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