Nairobi Marathon is an annual road running

Road running

Road running is the sport of running on a measured course over an established road . These events would be classified as long distance according to athletics terminology, with distances typically ranging from 5 kilometers to 42.2 kilometers in the marathon. They may involve large numbers of runners...

 competition over the marathon

Marathon

The marathon is a long-distance running event with an official distance of 42.195 kilometres , that is usually run as a road race...

 distance which held in October in Nairobi

Nairobi

Nairobi is the capital and largest city of Kenya. The city and its surrounding area also forms the Nairobi County. The name "Nairobi" comes from the Maasai phrase Enkare Nyirobi, which translates to "the place of cool waters". However, it is popularly known as the "Green City in the Sun" and is...

, Kenya

Kenya

Kenya , officially known as the Republic of Kenya, is a country in East Africa that lies on the equator, with the Indian Ocean to its south-east...

. First held in 2003, the competition expanded and now includes a half marathon

Half marathon

A half marathon is a road running event of . It is half the distance of a marathon and usually run on roads. Participation in half marathons has grown steadily recently. One of the main reasons for this is that it is a challenging distance, but does not require the same level of training that a...

 race along with the main race.

It was part of the "The Greatest Race on Earth

The Greatest Race on Earth

The Greatest Race on Earth was a four-part series of marathon races in a relay format, which included the Nairobi Marathon, Singapore Marathon, Mumbai Marathon and Hong Kong Marathon. It was created and sponsored by Standard Chartered in 2004...

", fully sponsored by Standard Chartered Bank

Standard Chartered Bank

Standard Chartered PLC is a multinational financial services company headquartered in London, United Kingdom with operations in more than seventy countries...

. The other three legs of this four-marathon race were the Hong Kong Marathon

Hong Kong Marathon

The Hong Kong Marathon, sponsored by Standard Chartered Bank, is an annual marathon race held in February or March in Hong Kong. In addition to the full marathon, a 10 km run and a half marathon are also held.-1997:...

, the Mumbai Marathon

Mumbai Marathon

The Mumbai Marathon is an annual international road running competition over the marathon distance that is held in Mumbai, India, each January. The course records set in 2011 were also the fastest times ever run for the marathon on Indian soil – 2:09:54 by Girma Assefa and 2:26:56 by the women's...

 and the Singapore Marathon

Singapore Marathon

The Singapore Marathon is an annual international marathon race which is held on the first Sunday of December in the city of Singapore. It is an IAAF Silver Label Road Race...

.

Marathon

Key:

Edition	Year	Men's winner	Time (h Hour The hour is a unit of measurement of time. In modern usage, an hour comprises 60 minutes, or 3,600 seconds... :m Minute A minute is a unit of measurement of time or of angle. The minute is a unit of time equal to 1/60th of an hour or 60 seconds. In the UTC time scale, a minute on rare occasions has 59 or 61 seconds; see leap second. The minute is not an SI unit; however, it is accepted for use with SI units... :s Second The second is a unit of measurement of time, and is the International System of Units base unit of time. It may be measured using a clock.... )	Women's winner	Time (h Hour The hour is a unit of measurement of time. In modern usage, an hour comprises 60 minutes, or 3,600 seconds... :m Minute A minute is a unit of measurement of time or of angle. The minute is a unit of time equal to 1/60th of an hour or 60 seconds. In the UTC time scale, a minute on rare occasions has 59 or 61 seconds; see leap second. The minute is not an SI unit; however, it is accepted for use with SI units... :s Second The second is a unit of measurement of time, and is the International System of Units base unit of time. It may be measured using a clock.... )
1st	2003		2:15:40		2:41:27
2nd	2004		2:11:50		2:39:09
3rd	2005		2:12:15		2:36:08
4th	2006		2:10:21		2:32:39
5th	2007		2:15:50		2:44:14
6th	2008		2:10:30		2:33:42
7th	2009		2:10:12		2:28:57
8th	2010		2:10:31		2:31:11
9th	2011		2:10:54		2:30:17

Half marathon

Key:

Edition	Year	Men's winner	Time (h Hour The hour is a unit of measurement of time. In modern usage, an hour comprises 60 minutes, or 3,600 seconds... :m Minute A minute is a unit of measurement of time or of angle. The minute is a unit of time equal to 1/60th of an hour or 60 seconds. In the UTC time scale, a minute on rare occasions has 59 or 61 seconds; see leap second. The minute is not an SI unit; however, it is accepted for use with SI units... :s Second The second is a unit of measurement of time, and is the International System of Units base unit of time. It may be measured using a clock.... )	Women's winner	Time (h Hour The hour is a unit of measurement of time. In modern usage, an hour comprises 60 minutes, or 3,600 seconds... :m Minute A minute is a unit of measurement of time or of angle. The minute is a unit of time equal to 1/60th of an hour or 60 seconds. In the UTC time scale, a minute on rare occasions has 59 or 61 seconds; see leap second. The minute is not an SI unit; however, it is accepted for use with SI units... :s Second The second is a unit of measurement of time, and is the International System of Units base unit of time. It may be measured using a clock.... )
1st	2004		1:04:21		1:16:24
2nd	2005		1:01:34		1:13:33
3rd	2006		1:01:21		1:10:49
4th	2007		1:05:58		1:18:04
5th	2008		1:02:23		1:11:07
6th	2009		1:01:54		1:12:18
7th	2010		1:02:15		1:12:47
8th	2011		1:01:31		1:12:10