Farah learns from the past
Mo Farah roared to 10,000m gold at the World Championships, spurred on by the memory of having the title snatched from his grasp last time.
The double Olympic champion produced his now customary devastating final lap to defeat the Ethiopian Ibrahim Jeilan, the man who pipped him to the crown two years ago in Daegu.
The Briton took the lead with two laps to go in Moscow, having recovered from an apparent stumble, and had the strength in the home straight to hold off Jeilan and take victory in 27 minutes 21.71 seconds.
He told BBC One: "I had the experience from a couple of years ago and this time I saw him coming at the bell, so I knew he was always behind me. It was important I had something left and it was nice to win it and beat him this time after finishing second.
"I nearly went down a couple of times, but thank God I didn't and I just managed to cover every move. It was important for me and my training partner Galen Rupp to work together. We knew from the pace that the guys knew we've got speed, so the guys were going out there to take a lot out of me.
"I didn't want to lose again. I remember a couple of years ago I was second and I was just digging in, digging in and making sure I didn't over stride. I kept looking across and you could see in my eyes, just making sure they didn't come after me.
"It was nice to come out here and win it. That was the one missing. It was definitely well worth it."
Farah responded to his 2011 disappointment by winning the 5,000m title days later and then unforgettably taking double gold at the Olympic Stadium.
The 30-year-old had said ahead of Moscow he now has a target on his back every time he raced, but warned his rivals he was a better athlete this year than at London 2012.
He was not wrong. Farah has honed his ferocious kick, helped by the sort of speed which saw him break the European 1500m record in Monaco last month, and his finishing speed was once again in evidence here.
A 54.49secs last lap saw off his rivals and Farah spread his arms wide as he crossed the line, even if the cheers from the meagre crowd inside the Luzhniki Stadium was in stark contrast to the roar which urged him on last summer.
He said: "It's hard work. Sometimes it's just easier to go out in the race and do it like my 1500m race in Monaco where I just went out there and ended up running a personal best."
In tonight's race, the Kenyans and Ethiopians, assembled at the front, looked keen to work together to stop the favourite.
Farah, after all, was the only Briton in the 32-strong field, but he had American training partners Rupp, the silver medallist in London, and Dathan Ritzenhein alongside him and he took closer order with eight laps remaining.
There was a scare when he stumbled after an apparent clash of legs four laps from the end, but he managed to keep his feet - and his head.
Defending champion Jeilan briefly threatened to produce an upset yet again as he too finished strongly, but Farah was a different proposition this time around.
Jeilan took the silver, 0.52secs behind Farah, with Kenya's Paul Kipngetich Tanui getting bronze, 0.90s behind the winner.
And the success has not come without sacrifice.
Farah added on BBC One: "Training has been really hard, spending a lot of time away from the family. When I went back to compete after the London Anniversary Games my little twin daughters didn't recognise me.
"She didn't want to come up to me because I'd been sort of away for the last four months in and out.
"But it's definitely worth it and I'm proud to represent my country and do well for it."
Paula Radcliffe, the marathon world record holder, was full of praise for Farah's finish.
"A 54-second last lap in this sort of humidity is impressive," she said.
"Farah will have been having a few anxious moments in that last 150m with Ibrahim Jeilan, the same man who beat him in 2011, on his shoulder, but I think if he had really, really been pushed Mo would have found another gear.
"In Daegu he panicked a bit, but this time, even as his legs grew heavy, he did not."