Marathon world record-holder Wilson Kipsang has suffered a surprise defeat in the Olomouc half-marathon - losing to the pacemaker.

Geoffrey Ronoh, who is a training partner of Kipsang's, won by eight seconds in a course record of one hour 17 seconds in the race in the Czech Republic last Saturday.

Ronoh had previously only raced in one IAAF listed race - the 2013 Ahmedabad marathon in India in 2013, but Kipsang wasn't surprised by the outcome, reports BBC Sport.

"I knew through our training that he was very strong," said the 32-year-old.

Kipsang set his world record for the 26.2 mile race in Berlin last year - a time of 2:03.23, more than 12 minutes quicker than Ronoh's time in India.

In this half-marathon race, though, Kipsang was powerless to stop his fellow Kenyan. "In coming here, he told me to pace-make as fast as I could to make 28:20 for 10km," revealed Ronoh.

"I achieved it, running 28:15. After that, I feel strong at the end, I had to finish."

Kipsang will be hoping for better when he competes in the full marathon in next month's Commonwealth Games in Glasgow where he will look to add to his one global medal - bronze in the London Olympics.

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