August 28, 1983|
Olson was born in Amherst, Wisconsin. While at school he took up cross-country running in order to get fit for basketball but then found running appealed to him more. After problems in his personal life, he dropped out of college but things improved when he took up coaching in Amherst. Moving with his wife Krista to Ashland, Oregon he met a group of ultra-runners and joined them in training.
In 2009, Olson ran his first fifty kilometer race and came in sixth. The following year, he won his first one hundred mile race. In 2011 he first attempted the Western States 100. The route goes from Squaw Valley to Auburn, California and attracts an international field and he completed the course in 16 hours 18 minutes to finish sixth.
In 2012, Olson won the 39th annual Western States 100 race in the record time of 14:46:44, trimming the course record of 15:07:04, set by Geoff Roes two years earlier, by over twenty minutes. He won the race again in 2013, and also competed in the Ultra-Trail du Mont-Blanc, where he came fourth with a time of 21:38:23.
- Meghan M. Hicks (1 July 2013). "Timothy Olson's Rise Out Of The Ashes". Competitor.com. Retrieved 15 December 2014.
- Mock, Justin (14 March 2011). "Timothy Olson on the Rise". Running Times. Retrieved 15 December 2014.
- "Timothy Olson, Ellie Greenwood Smash Records at Western States". UltraRunning. Archived from the original on 2 November 2013. Retrieved 15 December 2014.
- "Course records". Western States 100-mile Endurance Run. Retrieved 15 December 2014.
- Arnold, Katie (11 September 2013). "Running With an Ultra Dad". Raising Rippers. Ourtside. Retrieved 15 December 2014.
- "Results of race, 2013". Ultra-Trail du Mont-Blanc. Ultratrailmb.com. Retrieved 2014-12-13.
- "Competitor Group Announces 2014 endurance LIVE Winners". xtri.com. Retrieved 15 December 2014.