Cosmas Ndeti

Cosmas Ndeti (born November 24, 1971) is a three-time winner of the Boston Marathon. He was the winner of the 1993, 1994, and 1995 races. He set the course record in 1994 with a time of 2:07:15, which was also the best marathon performance in 1994. That course record stood for 12 years until it was broken by one second when Robert Kipkoech Cheruiyot, a fellow Kenyan, won the 2006 race.

He received a three-month ban for doping, after failing a test for ephedrine at the 1988 IAAF World Cross Country Championships. This made him the first doping ban case in Kenyan history.