Olympic sprint champion Linford Christielost a challenge today against an order banning him from the roads for 15 months for careless driving.
The 100m gold medallist at the 1992 Barcelona Games, who received the sentence in July last year, was present at the Court of Appeal in London for the decision.
He had been cleared of dangerous driving, which he denied, at a trial at Aylesbury Crown Court in Buckinghamshire.
But he was disqualified for 15 months and fined £5,000 for careless driving.
Christie, 51, of Twickenham, west London, crashed head-on into a taxi carrying a newlywed couple while driving the wrong way down a major road.
Two judges dismissed his appeal against the disqualification, but reduced the fine to £3,000.