Colleen S. De Reuck (born 13 April 1964 in Vryheid, Kwazulu-Natal) is a long-distance runner from South Africa, who became an American citizen on 11 December 2000. She has had a long-lasting career, running in her forties, and made a total of four appearances at the Summer Olympics. She was a late bloomer and her first major success came in 1995 and 1996, when she won the Honolulu Marathon and the Berlin Marathon. Despite numerous appearances in the Summer Olympics and the IAAF World Championships in Athletics, medals never came on the track. By virtue of winning the Olympic Trials, she was also the 2004 United States National Champion in the Marathon. Just ten days short of moving into the Masters division, she broke the 16-year-old Trials record, and defeated eventually Olympic bronze medalist, Deena Kastor in the process. After her transfer to compete for the United States in 2000 she won her first major world medals, taking the individual bronze and team silver at the 2002 IAAF World Cross Country Championships. Another team bronze came at the following year's championships and she won at the 2004 and 2005 USA Cross Country Championships. She continues to run and finished third at the Houston Half Marathon in 2009, finishing in 1:12:14. Career South Africa De Reuck began competing for South Africa and made her first Olympic appearance at the 1992 Barcelona Games, where she finished ninth in the marathon race. She tried her hand at the half marathon, resulting in a win at the City-Pier-City Loop in 1993 and a fourth-place finish at the 1995 IAAF World Half Marathon Championships. She also won the Honolulu Marathon that year with a time of 2:37:29. In 1996 she won the Lilac Bloomsday Run, the Berlin Marathon, and the Eurocross cross country meeting in Luxembourg. She made her second Olympic appearance in the 10,000 m, taking 13th place at the 1996 Atlanta Olympics. Her first appearance on the world championships stage came at the 1997 World Championships in Athletics and she finished in eighth in the final of the 10,000 meters. At the 1998 IAAF World Cross Country Championships she finished in 15th overall in the women's long race. Following a missed opportunity at the 1999 World Championships in Athletics, she represented South Africa at the Olympics for the third and final time, but managed on 31st place in the women's marathon with a