Lincoln open water swimmer Jack Burnell has had an appeal against his controversial disqualification from the 10k marathon event turned down.
Scunthorpe-born Jack, 23, was disqualified from the event after receiving two yellow cards in the water.
In a photo finish, Jack was initially in third place but replays showed that he had just missed out on the touch.
Jack has said that a competitor had been holding his leg in the final stretch but this was not caught on camera.
Jack originally qualified for the games by finishing fifth in the World Championship 10km marathon swimming event in Kazan, Russia in 2015.
He was the first Team GB athlete to qualify for the Rio Olympics and was in medal contention throughout the nearly two-hour long race.
Words cant describe the range of emotions I have been through today! Amazing support from everyone! Will voice my opinion in the coming days
— Jack Rex Burnell (@jackburnell) August 16, 2016
A furious Jack told BBC Sport shortly after the race: “The whole is thing a joke. I was disqualified two metres from the finish.
“My first yellow was coming down the straight back here and I was second, no one was either side of me and he pulls out a yellow card.
“I couldn’t have physically touched anyone and I got a yellow card.
“I shook my head at the guy. This is meant to be the pinnacle of our sport and there are referees who haven’t a clue what they are doing.”