Shadrack Kiptoo Biwott

Shadrack Kiptoo Biwott (born February 15, 1985, in Kenya) is a Kenyan-born American long-distance runner.

Early life Biwott grew up in Eldoret in the Rift Valley Province of Kenya and moved to the United States in 2002 to attend La Cueva High School in Albuquerque, New Mexico. On November 8, 2003, he placed first in the state with a time of 15:23.00 at the New Mexico State Cross Country Championships.

College career Biwott graduated from the University of Oregon where he was an multiple time All-American.

Biwott was an athlete of the Year for cross country lead the Oregon Ducks to an impressive group of five Men of Oregon All-Americans returning for the defending NCAA Division I national team champion in 2008.

Biwott earned 2007 cross country honors and was named the Pac-10 Athlete of the Year for winning his first Pac-10 xc title.

Biwott debut at 2007 Stanford Cardinal track and field Invitational earning an NCAA provisional mark in 10,000 meters in 29:00.52.

Professional career After graduating from Oregon, Biwott signed to train on the track under coach Mark Rowland led Oregon Track Club until 2012.

Biwott became a U.S. citizen and moved to Folsom, California in 2012.

Biwott placed 3rd in 2013 Medtronic Twin Cities Marathon in Minnesota in 2:13:26.

Biwott was sponsored by ASICS in 2014.

Biwott competed at the 2014 IAAF World Half Marathon Championships where he finished 39th.

Biwott placed 14th in 2:12:55 at 2014 BMW Frankfurt Marathon.

Biwott placed 7th at the Los Angeles U.S. Olympic Trials Marathon in 2:15:23.

He finished 5th at the 2016 New York City Marathon.

At the 2017 Boston Marathon he placed 4th.

Biwott joined the Hanson Brooks Project on April 27, 2017.

At the 2018 Boston Marathon he placed 3rd.

At the 2019 Boston Marathon he placed 15th.

Anti-Doping Rule Violation On January 5, 2024, Biwott tested positive for erythropoietin (EPO). An evidentiary hearing on May 7, 2025 resulted in a four-year sanction. The United States Anti-Doping Agency (USADA) and Biwott presented their cases at this hearing, and an independent arbitrator passed the ruling. Biwott's suspension was set to last until February 23, 2028, four years after his provisional suspension.