(CNN) -- Drugs cheat Dwain Chambers overcame the first hurdle towards his appearance at the Beijing Olympics when he won the 100 meters at the British trials on Saturday.
Chambers showed his sprinting prowess with victory in the British trials.
Chambers, banned for two years after being caught in the BALCO doping scandal, clocked a swift 10 seconds flat to hold off the challenge of promising youngster Simeon Williamson.
But his appearance in Beijing now rests on a ruling by a judge in London's High Court on Wednesday as Chambers bids to overturn a British Olympic Association bye law, which bans athletes with a doping conviction from competing at the Games.
Chambers needed to finish in the first two in Birmingham to keep alive his Olympic dream and was pushed all the way by Williamson (10.02) with Craig Pickering third in 10.19 seconds.
"That was hard work. I've done my job and hopefully next week things will go well," Chambers told BBC Sport after his victory.
Chambers's return to competition, he finished second at the world indoor championships earlier this year, has received a mixed reception with many former track and field stars outspoken in their criticism of the 30-year-old.
It has also divided opinion amongst his fellow athletes with Pickering, who would have claimed an automatic place for Beijing without the appearance of Chambers, voicing his stance:
"I respect Dwain as an athlete but he's done bad things in the past," he told the BBC.
Britain's Olympic selectors are expected to delay the announcement of their 100 meter lineup until after the High Court ruling.
They must name the team for Beijing by July 20.