Paris: World Marathon Majors organisers announced Friday they were postponing the awarding of this year`s prize to Kenyan runner Rita Jeptoo after a report she has tested positive for doping.
The RunBlogRun website, quoting "reliable sources", said Jeptoo`s `A` sample had come up positive for an unnamed banned substance following an out of competition test carried out in Kenya in September.
Jeptoo is currently the world`s top female marathoner, having won the Chicago marathon twice and Boston three times, including in 2013 when she set the course record of 2hrs 18min 57sec -- the eighth-best female marathon time of all time.
She had been due to receive her $500,000 WMM prize -- the biggest payout in distance running -- for the 2013-2014 series in New York on Sunday, but organisers said the ceremony had been delayed.
"World Marathon Majors is disappointed to learn that Rita Jeptoo has apparently had an A test that proved positive for a banned substance under IAAF rules," a statement said.
"World Marathon Majors has been at the forefront of the fight against doping in our sport and has a rule that no athlete can win the World Marathon Majors Series title, who has been in breach of IAAF anti-doping rules," it added.
"At present there has been no decision in this case by the IAAF, including in relation to sanctions, and as a result... it has been decided to postpone the WMM Awards Ceremony."