UPDATE 1-Olympics-Athletics-Gay runs wind-assisted 9.68 seconds

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EUGENE, Oregon, June 29 (Reuters) - World champion Tyson Gay ran the fastest 100 metres of all-time to win the American Olympic trials on Sunday, a wind-assisted 9.68 seconds.

The victory put Gay into his first U.S. Olympic team but the wind speed of 4.1 metres per second deprived the 25-year-old of a world record.

Only marks set with assisting winds of 2.0 metres per second or less can be considered for record purposes.

Jamaican Usain Bolt holds the world record of 9.72 seconds.

Obadele Thompson of Barbados set the previous best time under any conditions, a wind-assist 9.69 seconds in 1996.

Walter Dix (9.80 seconds) and Darvis Patton (9.84 seconds) also made the U.S. team.

Gay, who ran a national record 9.77 seconds on Saturday, made a solid start and by 40 metres was in complete control of the race.

The double world champion will attempt to make the U.S. team in the 200 metres later this week with the first round on Friday.

Former collegiate champion Dix overtook Patton in the last 20 metres to finish second.

(Writing by Gene Cherry; Editing by Ed Osmond)

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