"It will be a tough race. Eliud is going there to run for a world record. Forget anything else said, if the conditions are good, the world record is coming down," said Kitwara.

Kipsang held the world record for one year when he broke it in 2013 clocking an impressive 2:03:23 to eclipse the 2:03:38, which had been posted by compatriot Patrick Makau.

It was the only race that Eliud Kipchoge has ever lost since he turned to marathon in 2013. Kipchoge finished second. However, Kimetto improved the mark to become the first man to run under two hours and three minutes.

He clocked the current mark of 2:02:57 in 2017, which has remained in force till today.

Last year, Kipchoge attempted to break the record on his third time running in Berlin but poor weather, rainy and windy conditions prevented him. He clocked 2:03:32.

"Kipchoge would have broken it last year because I was the one who paced him. The conditions were too hostile - it was too rainy and windy. We hope for the best this time. We have planned to pass the halfway mark at by 61:15 to 61:20 minutes. He is hoping to run a world record of 2:02:40 or thereabouts," he said.

On the other hand, Kipsang has predicted the record will be lowered down to 2:02:50.

Since his debut in the event in Hamburg in 2013, Kipchoge has won every marathon from Chicago (2017), Berlin (2017 and 2017) London (2017, 2016 and 2018) and Rio Olympic marathon.

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