William Yiampoy
- Born
- May 17, 1974 (52 years old)
- Events
- 800 m · 1000 Metres
- Height
- 1.83 m
- Weight
- 70 kg
William Oloonkishu Yiampoy (born 17 May 1974, in Emarti) is a Kenyan runner who specializes in the 800 metres. His personal best is 1:42.91 minutes, achieved in September 2002 in Rieti. He graduated from Sosio High School in Kilgoris in 1989.
He was recruited by Kenya Police in 1991. He did not start running until 1996. In 1999, he ran his first European races.
He was selected to compete at the 2000 Olympics replacing Patrick Konchellah, the winner of Kenyan Olympic trials. He was part of the 4 x 800 metres relay team who currently holds the world record. He is married with two children. He is managed by Gianni Demadonna and coached by Gianni Ghidini. Yiampoy is a member of the Maasai tribe.
As of Oct 28, 2026: 800 m 1:42.91 (#53 all-time), 1000 Metres 2:14.41, 2007 season best 1:48.19 (Jun 17, 2007, Warszawa (POL)) · World Championships: 1 bronze · World record (4x800 Metres Relay) · 52 years old
Personal bests
WA points calculator →Medals
| Competitions | Gold | Silver | Bronze | Total |
|---|---|---|---|---|
| World Championships | – | – | 1 | 1 |
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2007 | 800m | 1:48.19 | – | Jun 17, 2007 | Warszawa (POL) |
| 2006 | 800m | 1:44.12 | – | Aug 18, 2006 | Weltklasse Zürich |
| 2006 | 800m-short-track | 1:48.23 | – | Feb 11, 2006 | – |
| 2006 | 800m-short-track Indoor | 1:48.23 | – | Feb 11, 2006 | Velódromo Luis Puig, Valencia (ESP) (i) |
| 2006 | 1000m Indoor | 2:19.04 | – | Jan 29, 2006 | Karlsruhe (GER) (i) |
| 2006 | 1000m-short-track | 2:19.04 | – | Jan 29, 2006 | – |
| 2006 | 1000m-short-track Indoor | 2:19.04 | – | Jan 29, 2006 | Karlsruhe (GER) (i) |
| 2006 | 1500m | 3:47.07 | – | May 21, 2006 | Marcon (ITA) |