Tucson 50K
Race Day Weather
Cool start — fast day potential, big temp swing
A cool 43°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 66°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.
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Race Info
The Tucson 50K starts at Biosphere 2 near Oracle, Arizona, and follows the marathon course down State Route 77, past Catalina and through Oro Valley. The route descends along the foothills of the Santa Catalina Mountains and joins the Canada del Oro River Park bike path for its final stretch. Past the marathon distance, the course continues out to Ted Walker Park and back along The Loop bike path to finish at Pima Community College Northwest Campus. The 50K runs on the Sunday of race weekend.
