Leonard Patrick Komon (born 10 January 1988 in Mount Elgon District) is a Kenyan long-distance runner and the current world record holder in the 10 kilometres and 15 km road races. His 10K world record in 2010 with a time of 26:44 is a 17 seconds improvement on the previous best. He won a half marathon with 59:14 in 2014 (Berlin), which is the fastest debut half marathon of all time.
Komon is from Cheptais in Mount Elgon District. 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. He was the 2008 winner of the Cross Internacional de Soria. 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 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). This marked him out a contender for a medal at the 2010 World Cross Country Championships in Poland. 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. 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. 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.
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. 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. 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. On 21 November 2010 Komon set his second world record of the year. Winning the Zevenheuvelenloop 15K in 41:13 minutes, he bettered the former mark held by Felix Limo and Deriba Merga by sixteen seconds.
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. A sixth-place finish at the Kenyan Cross Country Championships brought him a spot for the World team. The governing body, Athletics Kenya, removed him from the team however, as he defied their orders not to compete at the World's Best 10K in February, at which he came fourth. He produced a course record time to win at the UAE Healthy Kidney 10K in Central Park that April. In October, he set his sights on running a 10-mile world record at the Great South Run, but a slow second half undid his initial quick pace, although he did beat Abel Kirui to win the race. He also won the Grand 10 Berlin race for a second time running that month. Turning to the grass circuits of Spain, he took a comfortable win over Kidane Tadesse at the Cross Internacional Valle de Llodio. His 2011 ended with a win at the Silvesterlauf Peuerbach.
He was injured for much of 2012 but returned to action in September with a run of 27:01.58 minutes for fifth in the Memorial Van Damme 10,000 m. He won the Dam tot Damloop for a second year running, but was slower than his previous outing, leading him to question his performance. He took a third straight victory at the Grand 10 Berlin, was second to Nicholas Kipkemboi at the Zevenheuvelenloop, then won the Peuerbach race again on New Year's Eve.
Komon won the UAE Healthy Kidney 10K in May but had a quiet season after failing to qualify for the 10,000 m at the 2013 World Championships in Athletics. He was fifth at the Dam tot Damloop 10-miler, but managed to retain his title at the Grand 10 Berlin. Komon won the Crescent City Classic in 2014  and won third place at the 17th Prague Half Marathon in 2015.
|2006||World Cross Country Championships||Fukuoka, Japan||2nd||Junior race|
|2007||World Cross Country Championships||Mombasa, Kenya||4th||Junior race|
|2008||World Cross Country Championships||Edinburgh, Scotland||2nd||Senior race|
|2009||World Cross Country Championships||Amman, Jordan||4th||Long race|
|2010||World Cross Country Championships||Bydgoszcz, Poland||4th||Senior race|
- 3000 metres – 7:33.27 min (2009)
- Two miles – 8:22.57 min (2007)
- 5000 metres – 12:58.24 min (2006)
- 10,000 metres – 26:55.29 min (2011)
- 10K – 26:44 min (2010) WR
- 15K – 41:13 min (2010) WR
Half Marathon 59:14 (2014) (fastest debut half marathon in history)
- The Standard, 14 October 2008: Komon the mountain legion[permanent dead link]
- Valiente, Emeterio (17 January 2010). Komon takes down Gebremariam, business as usual for Masai in Seville Archived 21 January 2010 at the Wayback Machine.. IAAF. Retrieved on 31 January 2010.
- Butler, Mark (28 March 2010). Joseph Ebuya ends Kenyan draught – Men's Senior race report. IAAF. Retrieved on 30 March 2010.
- Komon smashes through 27-minute barrier with 26:44 run in Utrecht 10Km. IAAF (26 September 2010). Retrieved on 26 September 2010.
- Komon on fire – 27:12 in Berlin. IAAF (10 October 2010). Retrieved on 10 October 2010.
- "Komon breaks World 15Km record in Nijmegen". www.iaaf.org. IAAF. 21 November 2010. Retrieved 21 November 2010.
- Diego Sampaolo (6 January 2011). Ebuya and Kalovics take Campaccio Cross Country win. IAAF. Retrieved on 15 January 2011.
- Valiente, Emeterio (16 January 2011). Komon defends, Cheruiyot edges Masai in Seville Archived 19 January 2011 at the Wayback Machine.. IAAF. Retrieved on 19 January 2011.
- Mutuota, Mutwiri (19 February 2011). Mutai and Masai take hard fought wins in Nairobi; reigning World champs Ebuya and Chebet won’t defend. IAAF. Retrieved on 1 March 2011.
- Kenya axe Komon from team. Times Live (27 February 2011). Retrieved on 2 March 2011.
- Clavelo Robinson, Javier (28 February 2011). Kitwara regains title, Ejigu notches victorious 10km debut in San Juan. IAAF. Retrieved on 1 March 2011.
- Komon smashes Central Park 10Km record. IAAF/NYRR (14 May 2011). Retrieved on 14 May 2011.
- Martin, David (30 October 2011). Komon and Mergia take convincing victories in Portsmouth. IAAF. Retrieved on 30 October 2011.
- Leonard Komon Runs 27:15, Mara Yamauchi 32:19 For 10k at Asics Grand 10 in Berlin. Let's Run (11 September 2011). Retrieved on 20 November 2011.
- Valiente, Emeterio (28 November 2011). Komon and Ejjafini succeed in Llodio XC. IAAF. Retrieved on 28 November 2011.
- Maier, Andreas (1 January 2012). Komon prevails in Peuerbach New Year's Eve run. IAAF. Retrieved on 6 January 2011.
- Komon defends Dam to Dam title. IAAF (23 September 2012). Retrieved on 27 January 2013.
- van Hemert, Wim (18 November 2012). Dibaba and Kipkemboi prevail in Nijmegen 15K. IAAF. Retrieved on 21 January 2013.
- Wenig, Jörg (13 October 2013). Chepkirui sets German all-comers' record at Berlin 10km. IAAF. Retrieved on 15 October 2013.
- (20 April 2014)Thousands run in New Orleans 10K WDSU. Retrieved on 6 October 2015.
- Monti, David (28 March 2015). RRW: Favorites Falter at Prague Half-Marathon LetsRun.com/Race Results Weekly Retrieved on 6 October 2015.
Media related to Leonard Komon at Wikimedia Commons
| Men's 10 kilometres world record holder
26 September 2010