Tucson Shamrock Half Marathon
Race Day Weather
Cool start, steady climb ahead
Runners will face a temperature rise from 48°F at the start to 60°F by the finish, with humidity at a comfortable 30%. Light crosswinds will be present, but they should not significantly impact performance. Given the mild conditions, runners can maintain their pace, but hydration should be prioritized as temperatures rise.
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Race Info
The Tucson Shamrock Half Marathon takes runners along dedicated asphalt and concrete trails on the Rillito River Loop, starting and finishing at Brandi Fenton Memorial Park. The St. Patrick's-themed race also offers 10K and 5K distances. It is organized by StartLine Racing, an Arizona race management company that runs several similarly-themed events across the state.