- Date
- Saturday, 18 April 2026
- Location
- Oracle, AZ, United States
About This Race
March 31 Update: Here is the first pre-race email to all participants with race weekend details: Looking for a way to celebrate Earth Day? Whether you're a seasoned athlete or just looking for a fun way to get some exercise, you're sure to enjoy yourself at the world-famous Biosphere 2.
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