Mo Farah clocked a 54-second final lap to win the gold medal in the 10,000m race at the World Championships in Moscow on Saturday afternoon.
The 30-year-old double Olympic champion beat Ethiopia's Ibrahim Jeilan in an extraordinary sprint finish in humid conditions, with Paul Tanui of Kenya taking the bronze.
Farah's victory, clocked at 27 minutes, 21.71 seconds was ample revenge for the Briton, who lost out to Jeilan in the world championships in South Korea two years ago.
The race was a tactical triumph for Farah, who controlled the pace for the first half of the 10,000 metres, before moving to the front again with four laps remaining.
As the race entered its final lap, Farah kicked for home, but found Jeilan hard to shake off, leading to a tense finish in the 54-second final 400 metres.
The almost obligatory Mobot celebration
Running to the crowd to celebrate with his family, he confessed that training for this year's crucial championship races had been so tough and time consuming that his year-old daughter didn't even recognise him.
Farah is expected to attempt a repeat of his Olympic 5,000m gold medal later in the championships as he defends his world crown at that distance.
Speaking on the BBC, former athlete Brendan Foster paid tribute to Farah after his victory: "That was a brutal last lap. He's the greatest distance runner this country has ever had. It's a pleasure to be around him. He's on the edge of some of the sport's greats and he can go on to be one of the greatest of all time."