Banned sprinter Justin Gatlin finally won a round in his bid to defend his 100-meter title at the Beijing Olympics.

His chances of ultimate success, though, still faced significant, perhaps insurmountable, obstacles.

A Florida federal judge ruled Friday that Gatlin should be allowed to compete at the U.S. Olympic track and field trials, which begin June 27 in Eugene, Ore.

U.S. District Judge Lacey A. Collier's temporary restraining order is in effect for 10 days at present. The first two rounds of the 100-meter qualifying are set for June 28. The semifinals and finals are the following day.