Round up of road races' statistics after the Spring season as of 21 May 2012

A round up of road races' statistics after the Spring season as of 21 May 2012 :

Marathon

Fastest marathon ever run – 2:03:02 Geoffrey Mutai (KEN) Boston 2011 (not ratified by IAAF)

World Record (M) –- 2:03:38 Patrick Makau (KEN) Berlin 25 Sep 2011

World Record (W) –- 2:15:25 Paula Radcliffe (GBR) London 13 Apr 2003

World Leading (M) – 2:04:23  Ayele Abshero (ETH) Dubai 27 Jan

World Leading (W) – 2:18:37  Mary Keitany (KEN) London 22 Apr

World Championships Record (M) – 2:06:54 Abel Kirui (KEN) Berlin 22 Aug 2009

World Championships Record (W) – 2:20:57 Paula Radcliffe (GBR) Helsinki 2005

Olympic Record (M) - 2:06:32 late Sammy Wanjiru (KEN) Beijing 2008

Olympic Record (W) - 2:23:14 Naoko Takahashi (JPN) Sydney 2000

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Half Marathon

World Record (M) –--- 58:23  Zersenay Tadese (ERI) Lisbon 21 Mar 2010

World Record (W) – 1:05:50  Mary Keitany (KEN) RAK 18 Feb 2011

World Leading (M) –-- 58:47  Atsedu Tsegay (ETH) Prague 31 Mar

World Leading (W) – 1:06:38  Florence Kiplagat (KEN) Ostia 26 Feb

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10km

World Record (M) –- 26:44  Leonard Komon (KEN) Utrecht 26 Sep 2010

World Record (W) –- 30:21 Paula Radcliffe (GBR) San Juan, PUR 23 Feb 2003

World Leading (M) – 27:39 Haile Gebrselassie (ETH) Manchester 20 May

World Leading (W) – 30:47  Vivian Cheruiyot (KEN) San Juan, PUR 26 Feb

Ref.: IAAF