Komon began preparing for the cross country championships in January and came second at the Campaccio race behind reigning champion Ebuya, then retained his title at the Cross de Itálica. Winning the Zevenheuvelenloop 15K in 41:13 minutes, he bettered the former mark held by Felix Limo and Deriba Merga by sixteen seconds. On 21 November 2010 Komon set his second world record of the year. He continued his strong form at the Grand 10 Berlin race, where he took on former record holder Kogo and comprehensively beat him, finishing in 27:12 – over a minute ahead his rival. This was a seventeen-second improvement upon Micah Kogo's previous best as Komon became the first man under 27 minutes over the road distance. In September 2010, at the Singelloop in Utrecht, the Netherlands, Komon ran a world record for the 10-kilometre road race with a time of 26:44 minutes. He set a personal best over 5000 metres on the track at the 2009 Golden Gala in Rome, running 12:58.24 for third place behind Kenenisa Bekele and Mark Kiptoo. They both recorded a time of 33:10 and Komon ended up in fourth, although his finish did help the Kenyan men (led by Joseph Ebuya) to the team gold medal – an exact repeat of his performance from the previous year. Having been among the leading four runners in the final lap at the championships, he looked set to claim third place but a late sprint in the final 100 m saw Moses Ndiema Kipsiro overhaul the Kenyan. This marked him out a contender for a medal at the 2010 World Cross Country Championships in Poland.

He completed a strong 2009–2010 cross country season in Spain, finishing third in the Cross de la Constitucion (Alcobendas) and first in both the Cross de Itálica (Sevilla) and the Cross de Elgoibar (Basque Country).

Komon was close to winning the bronze medal at the 2009 World Cross Country Championships in Amman, but he missed out by one second behind Zersenay Tadese and Moses Kipsiro. He was the 2008 winner of the Cross Internacional de Soria. Komon won his first medals in cross country running competitions, taking the junior silver medal at the 2006 IAAF World Cross Country Championships and progressing to win the senior silver at the 2008 edition. Komon was born in Cheptais in Mount Elgon District. Komon was the silver medallist at the 2008 IAAF World Cross Country Championships and shared in three team golds from 2008 to 2010. He won a half marathon with 59:14 in 2014 (Berlin), which was the fastest debut half marathon in history at the time. His 10K world record in 2010 with a time of 26:44 is a 17 seconds improvement on the previous best. Leonard Patrick Komon (born 10 January 1988) is a Kenyan professional long-distance runner and was the world record holder in the 10 kilometres.

Komon en route to his world record at the 2010 Singelloop Utrecht

Leonard koen