No other male Kenyan runner had ever won the marathon at World Championships or Olympic Games until 2007, when Luke Kibet became a world champion. The following year, Wakiihuri won the silver medal at the 1988 Summer Olympics in Seoul, finishing behind Gelindo Bordin.
|1987||World Championships||Rome, Italy||1st||Marathon||2:11:48|
|1988||Olympic Games||Seoul, South Korea||2nd||Marathon||2:10:47|
|1989||London Marathon||London, United Kingdom||1st||Marathon||2:09:03|
|1990||Commonwealth Games||Auckland, New Zealand||1st||Marathon||2:10:27|
|20 km of Brussels||Brussels, Belgium||1st||20 km||57:21|
|New York City Marathon||New York, United States||1st||Marathon||2:12:39|
|1992||Olympic Games||Barcelona, Spain||36th||Marathon||2:19:38|