Doha - Germany's Tony Martin won the men's time-trial title in Qatar on Wednesday for a record-equalling fourth time.
obliterated the field of 66 riders, winning the 40km race by 45 seconds
from last year's champion Vasil Kiryienka of Belarus, with Spain's
Jonathan Castroviejo a further 25 seconds back in third.
Martin previously won the title in 2011, 2012 and 2013, and joins Fabian Cancellara as the only four-time winners of the event.
"It's amazing, I can't believe it," said Martin afterwards.
"Everybody knows that I haven't had a good year.
"But this makes everything OK - the course was made for me."
of the pre-race favourites, Tom Dumoulin, the Olympic silver-medallist,
finished way back in 11th place, more than two minutes off the pace.
The race was surprisingly led for a long time by Ireland's Ryan Mullen, who eventually finished fifth.
is the second time this week Martin has taken gold, having also
triumphed in the team time-trial in his last race for his Etixx-Quick
Martin told reporters that his first victory in
Copenhagen was the most special to him, but he would try and beat the
record he shares with Cancellara.
"I am still motivated to go for
the fifth or sixth title, I am not close to the end of my career, and
after today I am more motivated to go for more titles."
He added that before this season his form was such that he had begun to doubt whether he was still a "really big time-trialler".
race began in temperatures of 37 degrees Celsius as the flat course took riders from just north of Doha to
the finish on a man-made island on the fringes of Qatar's capital.
said he had prepared thoroughly for the conditions - he said earlier
in the week he had trained on rollers in a heated room - and averaged
almost 54km/h throughout the ride.
He was ahead of
his rivals by the second checkpoint and his victory was never in doubt
after that, yet the 31-year-old admitted he was surprised by the margin
Second-placed Kiryienka said he was very satisfied
with his performance and placing, despite losing his world title, and
had the "deepest respect" for Martin's victory.
"This (result) is not a surprise," he said.
"The surprise was last year when Tony Martin did not stand on the podium."
Martin finished seventh last year, more than a minute behind the Belarussian.
Castroviejo admitted he struggled with the heat in Qatar and called the course "very difficult".
Men's individual 40km time-trial World Championship results in Qatar on Wednesday:
1. Tony Martin (GER) 44min 42sec, 2. Vasil Kiryienka (BLR) at 45, 3. Jonathan Castroviejo (ESP) 1:10, 4. Maciej Bodnar (POL) 1:16, 5. Ryan Mullen (IRL) 1:21, 6. Rohan Dennis (AUS) 1:27, 7. Yves Lampaert (BEL) 1:45, 8. Jos van Emden (NED) 1:45, 9. Reto Hollenstein (SUI) 1:51, 10. Bob Jungels (LUX) 1:56, 11. Tom Dumoulin (NED) 2:01, 12. Alex Dowsett (GBR) 2:11, 13. Martin Madsen (DEN) 2:11, 14. Marcin Bialoblocki (POL) 2:15, 15. Taylor Phinney (USA) 2:21