Tim DeBoom (born November 4, 1970, in Cedar Rapids, Iowa), is a retired professional triathlete from Boulder, Colorado, from 1995 to 2012.

After a 10th place finish in the Hawaii Ironman in 1995, DeBoom focused on long distance racing, eventually winning the Ironman Triathlon World Championship in Hawaii twice (2001 & 2002).

Tim was inducted into the Hawaii Ironman Hall of Fame in 2019.

DeBoom graduated from the University of Iowa with Bachelor of Science degrees in exercise physiology and anatomy.

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