Farrell Treacy made a mistake he says he has "never done before" which cost him a chance to compete for a medal at the Winter Olympics.
The Team GB speed skater was hoping to make it through his 1000m heat on Saturday, but made a fatal error which cost him the chance to make it through to the next round.
Explaining why he had not managed to make it through the heat, Treacy explained that he thought he had heard the bell on the penultimate lap.