The 33-year-old could only jump 16.53m, which fell short of the qualification jump needed, and crashed out – bringing an end to the acrimonious build-up to the Games between Idowu and UK athletics.
Idowu, who finished 14th, was left disappointed by not qualifying, and admitted it’s time to take stock of his options – including inevitable surgery.
“That wasn’t me out there. I’ve competed for 12 years and I can’t remember a time when I’ve done that badly,” said Idowu, who won silver at Beijing 2008.
“I’m guessing that I’m going to need surgery at the end of the season. I think I’ll call it a day and wrap up the season.
“The goal was always to come here and battle for the gold medal and now it’s not to be, so I have to go home and reassess and spend some time with the family and try not to be down with my performance.
“I felt okay – I managed to get and see my physio for some treatment for this competition. I’ve gone in today pain free, which is nice and I felt I could have qualified automatically.
“I knew that I’d feel a little bit rusty because it’s been a while since I’ve competed. The conditions were a little difficult, with the wind – I’ve watched the guys on a few of the horizontal jumps.
“It’s over now – there’s nothing I can do. Competing in the final would have been great and the crowd have been brilliant. I’ve seen all the support they’ve given British athletes and I’m upset I’ve let them down.
“All year I’ve been tagged as a medal favourite and now I don’t even get a chance to go out there and do what I’ve done year-on-year.”
Idowu, who refused to specify what surgery he would need, explained the background to the media circus that surrounded him in the build-up to the Games.
He said: “I‘ve been travelling from Birmingham to London, seeing my physio and my coach for a while.
“After withdrawing from Crystal Palace, I was back in Birmingham and I had a nerve pain shooting down my side, from back into my hip and into my knee.
“I started a couple of training session, which as strong, but then I did a running session which was not so good.
“After that, it was decided it was best for me to stay in the UK. Things were going well and we had good work in training, but coming off eight strides in training to a full run-up here is different. My timing wasn’t there.”