Britain's David Florence crashed out of the canoe slalom at the Olympics after finishing outside the cut-off for the final.
The 29-year-old from Aberdeen initially took sixth spot after going out eighth, but dropped down to 10th place and out of the competition.
The world number one and silver medallist from Beijing had been in line for a medal but his time of 106.16 seconds, which included two seconds, was not good enough.
Florence, nicknamed D-Flo, received huge cheers from the 12,000 capacity grandstand at Lee Valley white water centre as he powered his way down the 250 metre course.
He has another chance of a medal when he competes in the semi-final of the C2 - the two-man boat - on Thursday with team-mate Richard Hounslow.
Florence said: "I am very disappointed obviously that it didn't go well enough. I have wanted to perform at this event for the last four years and not to do so is very frustrating.
"But it's part of the sport of canoe slalom - some days it doesn't go your way. As far as I am aware, I didn't go fast enough anywhere on the whole course. There wasn't one mistake that cost me time, it was the whole way.
"All I was trying to do was put in a great run the whole way and that is all I was really concentrating on. It's easy to say it was the pressure of the home crowd (that got to me) but this is a very up and down sport and today I wasn't good enough."
Florence insisted he could still turn it round for the C2 final when he will compete in the two-man boat with Hounslow.
He added: "Sometimes I have had as little as 20 minutes to turn it round and this time I have two days so that is not really an issue. I am not going to let any negativity get in the way of what is a great opportunity in a couple of days. I don't think I let myself down because as far as I am concerned I did everything I could. The crowd has been fantastic and the support amazing."