Biosphere 2 Earth Run 5k

Post-Race Update: Click here for the 2023 Race Report, with info on awards, results, and more.  Remaining 2023 shirts and medals have been brought to the Running Shop and are available for remainder pickup until May 15th.   Early Registration Open for 2024!  Early-bird registration is a mere $20 through June 2023!

 

Run the Desert . . . then visit a rain forest, view an ocean reef, and wander through savanna grass lands . . . all in one day!

Join us at the 2024 TMC Earth Day 5k, where you can walk or run the hidden backroads of the world-famous Biosphere 2, nestled at the base of the majestic Catalina Mountains, north of Tucson. The rolling 3.1 mile course offers gorgeous desert and mountain views, with start and finish on the Biosphere 2 Lawn.  

The TMC Earth Day 5k is raising funds for the Ocean Reef research project, learning how to grow ocean reefs in a changing climate.  See details and donate here. 

Limited to 500 Registrants -- what you get:

Timed 5k with finisher's videoAge group and overall awards courtesy of The Running ShopSouvenir race shirtFree entry to the world-famous Biosphere 2Snacks and drinksFood trucks with yummy post-race food for purchaseChildren's activitiesCOX Conserves special festivities plannedPlus: you can choose to purchase a souvenir Earth Day race medallion!

Click here for the Damion Alexander photos.  Click here for the video Damion put together. Click here for the KGUN Morning Blend pre-race interview about the TMC Earth Day 5k at the Biosphere 2.

Don't miss this chance to visit the earth's entire ecosystem under one roof while celebrating Earth Day.

Bring the Kids! Strollers are allowed at this child-friendly event, with a free Kid's Dash & Kid's Zone

Do Good! This inaugural event raises funds for the world-renowned Biosphere 2's Ocean Reef Lab. 

Terrain: mostly pavement, with a brief dirt section

Difficulty: hilly in sections

Weather: 50's - 70's

Differently Abled: Yes, be mindful of hills and dirt road

Pets Allowed: No

Want Training Advice? Contact RRCA-certified running coach Tia Accetta at [email protected]. 

Planned 2024 Schedule:

7:15-8:15 am Race day registration and packet pick up
8:30 Start time for TMC Earth Day 5k Run/Walk
9:30 Free Kids Dash
9:45 or so: Awards
Ongoing: All registrants can visit Biosphere 2 on their own -- no need for a formal tour!

All non-running guests can purchase Biosphere 2 admission for the discounted rate of $10 (before 8:30 am) and all children under 12 are free.

This event is a partnership between Run Tucson & the Biosphere 2, the University of Arizona

Questions? Contact Race Director Randy Accetta at [email protected].