Eliud Kipchoge is targeting a course record at next month's Boston Marathon even as he steps up preparations for the April 17 race.
Speaking to NN Running Team, Kipchoge who is regarded as one of the greatest marathoners of all time, said: "I just don't want to participate at the sixth Abbott World Marathon Major. I want to win it with a course record. It will be another milestone since I already have course records from the Tokyo, London and Berlin marathons.
The Boston Marathon course record stands at 2:03:01, set by Kenya's Geoffrey Mutai in 2011.
The two-time Olympic Marathon champion who lives and trains in Kaptagat added: "All is well as far as training is concerned. I think I am in the right direction heading towards April."
"It is the right time now to train on the 'Boston route' here in Kenya. It is an uphill and tough course of about 40km. Training at high altitude is good since it can help one breathe well and run fast."
Kipchoge is also keen on defending his Berlin Marathon title on September 23.
"Berlin and Boston are two different races on different continents. Berlin is a flat course. Boston on the other hand, is uphill and needs a lot of patience and hard work to go through," said Kipchoge.
"Boston is unpredictable and sometimes the weather is challenging but I am trying to be all-rounded."
