Officials have revealed the World and Olympic champion clocked 9.766 seconds, not 9.760 seconds as first thought.

According to IAAF rules, the time should have been rounded up to 9.77 secs - matching but not beating Asafa Powell's existing world record.

Powell eclipsed Tim Montgomery's old mark of 9.78 in Athens last year.

The news will be a blow to Gatlin but he will still be confident of claiming the record in his own right.

Despite the fast time, the American was not entirely happy with his run in Doha last Friday, saying: "I had a horrible start and I know I can do better.

"The timing could be further improved this year, probably in Europe."

The IAAF said it acted after being informed of the error by Tissot Timing.

Gatlin and Powell will renew their rivalry when they go head-to-head for the first time this season at the Gateshead Grand Prix on 11 June.

The pair last met on the track at the London Grand Prix last July.

Gatlin cruised to victory as Jamaican Powell pulled up with a groin injury that also kept him out of the World Championships.