Dennis Kipruto Kimetto (born 22 January 1984) is a Kenyan long-distance runner who competes in road running events. He was the world record holder in the men's marathon with a time of 2 hours 2 minutes 57 seconds, a record which he held until Eliud Kipchoge broke it in 2018 with a time of 2:01:39.

Career Hailing from Eldoret and part of a training group including Geoffrey Mutai,Hutchings, Tim (2012-02-17). Keitany wins but records blown off course in windy RAK Half Marathon. World Athletics. Retrieved 2026-05-29. Kimetto's first major win came in the half marathon section of the Nairobi Marathon in 2011. Running as Dennis Koech, he topped the podium in a time of 1:01:30.October 2011: AIMS results . AIMS. Retrieved 2013-02-02. He quickly rose into the global running elite in his first outings outside of Kenya. At the RAK Half Marathon he defeated a field including Wilson Kipsang Kiprotich to win the race in 60:40 minutes. His age was misreported as ten years younger, and his following run of 59:14 minutes to win the Berlin Half Marathon in April was briefly considered a world junior best.Martin, David (2012-04-01). Koech and Ongori prevail in heated battles in Berlin Half. World Athletics. Retrieved 2026-05-29. An erroneous passport was the cause of both the age difference and the Koech misnomer, his surname actually being Kimetto. This was rectified in later competitions.New name and new distance as Kenya's Newcomer Dennis Kimetto goes for 25 k in Berlin. Berlin Run (2012-05-03). Retrieved 2026-05-29.Kavarna 2012: Facts and Figures. World Athletics. Retrieved 2026-05-29.

With Kimetto's personal data corrected, he went on to break his first major record at the BIG 25 Berlin. His time of 71:18 for 25 kilometres knocked a sizeable margin off Sammy Kosgei's world record of 71:50.(2012-05-06). Kimetto breaks 25km World record in Berlin. World Athletics. Retrieved 2026-05-29. After this he made the fastest marathon debut in history that September. Again in Berlin, he ran alongside Geoffrey Mutai for much of the race as he recorded a time of 2:04:16, one second behind Mutai, to set the fifth fastest time ever run at that point.Butcher, Pat (September 30, 2012). Close victory for Mutai but more straightforward for Kebede in Berlin - REPORT. World Athletics. Retrieved 2026-05-29. Some reporters observed that Kimetto stayed solidly behind the more prominent Mutai in the final section of the race and concluded that he allowed his partner to take the victory which clinched a World Marathon Majors series title for Mutai.Tucker, Ross (2012-10-02). Geoffrey Mutai misses world record in an intriguing Berlin Marathon. The Guardian. Retrieved 2013-01-31.

In 2013 Kimetto set two World Marathon Majors course records, at Tokyo in 2:06:50Nakamura, Ken (2013-02-24). Kimetto clocks course record 2:06:50 at Tokyo Marathon. World Athletics. Retrieved 2026-05-29. (since bettered) and at Chicago in 2:03:45, the fastest time ever on American soil for a record quality course. On 28 September 2014, Kimetto broke the world record at the Berlin Marathon with 2:02:57 and became the first man to run under 2:03. His 5-kilometre splits were recorded as 14:42, 14:42, 14:46, 14:26, 14:32, 14:30, 14:09, 14:42.Douglas, Scott (2014-09-28) Dennis Kimetto's Marathon World Record By The Numbers. Runner's World. His second half of 1:01:12 was the fastest in history excluding those from the downhill and greatly wind-aided 2011 Boston Marathon.

His 2015 season wasn't as impressive as he only completed the London Marathon, finishing third, failing to complete the IAAF World Championships marathon in Beijing in August as well as the Fukuoka Marathon in December where he stopped at the 5-kilometre mark after dropping off the pace at 2 kilometres due to an injury. After finishing ninth at the 2016 London Marathon, Kimetto removed himself from consideration for the Rio Olympics, intending instead to run in the Chicago Marathon. However, he pulled out ahead of the race, citing a stress fracture in his left leg.Ryan, Shannon (2016-09-22) Chicago Marathon record holder Dennis Kimetto withdraws from field. Retrieved 2018-05-01.

Kimetto's injury problems continued in 2017, with a knee injury forcing him to withdraw from the field for the Boston Marathon.Shulman, Dan. (2017-03-17). World record-holder withdraws from 2017 Boston Marathon. Retrieved 2018-05-01. He failed to finish both the Chicago Marathon in October and the Honolulu Marathon in December.

At the Vienna City Marathon in April 2018 Kimetto dropped out before the 25-kilometre point.

Kimetto grew up in a rural farming community. "I think what really motivates me to be a fighter is the fact that I come from a humble background," Kimetto says. "I try to really make sure that I achieve my best so that I can assist my family."Battaglia, Joe (2014-09-24) From poverty to podium. Runner's World.

Achievements All results regarding marathon and half marathon Representing 2011Nairobi Half MarathonNairobi, Kenya1st1:01:30RAK Half MarathonDubai, United Arab Emirates1st1:00:402012Berlin Half MarathonBerlin, Germany1st59:14BIG 25 BerlinBerlin, Germany1st1:11:18Berlin MarathonBerlin, Germany2nd2:04:162013Tokyo MarathonTokyo, Japan1st2:06:50Chicago MarathonChicago, United States1st2:03:452014Berlin MarathonBerlin, Germany1st2:02:57 (WR)2015London MarathonLondon, England3rd2:05:502016London MarathonLondon, England9th2:11:442018Shanghai International MarathonShanghai, China10th2:14:54

+ World Marathon Majors results timelineWorld Marathon Majors201220132014 20152016 Tokyo Marathon-1st--- Boston Marathon----- London Marathon---3rd9th Berlin Marathon2nd-1st-- Chicago Marathon-1st--- New York City Marathon-----

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