Last year, Kosgei said she was already relishing the prospect of lowering her own world marathon record. That was in response to compatriot Eliud Kipchoge's run in Vienna last October, where he became the first man to run the marathon distance in under two hours, doing so in 1:59:40.

"With good preparations I think a woman running 2:10 is possible," she said. "I am focused on reducing my time again. I still believe a new world record time is still achievable and I will be giving it another attempt."

However, Kosgei stopped short of confirming where she would attempt a world record.

"I don't know when and where I will be trying the world record. But I know it will have to be done soon. In Chicago last year, I was expecting to run 2:16 or 2:17, but I ended up with 2:14. So anything is possible," she added.

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