2025 Race Weekend Schedule
Thursday, April 17
4:00 - 6:00 pm Packet pickup and in-person registration at The Running Shop, 3055 North Campbell, Tucson
T-shirts to the first 600 registered, sizing and style on a first-come, first-served basis.
Yes: you can pick up the number/shirt of other people
Yes: you can shop for cool goodies at The Running Shop.
Yes: It may be crowded, so please be nice to everyone
Yes: Be sure to take pins and pin your number on the front of your racing shirt.
Saturday, April 19 at Biosphere 2, 32540 S Biosphere Rd, Oracle, AZ 85739
Please consider carpooling. Please park in the main parking lot at the Biosphere 2. Please follow the directions of the Biosphere 2 staff on hand.
7:15-8:15 am Race day registration and packet pick up in the parking lot by the front entrance at the Biosphere 2. Pick up your race shirt and colorful race bib number.
8:30 am Start time for TMC Earth Day 5k Run/Walk
8:30 or so: Food trucks, with snacks and drinks available for purchase
9:45 am Free Kids Dash on the Great Lawn
10:00 am Awards, courtesy of the Running Shop. Remaining shirts available to late registrants, first-come, first-served.
10:15 Event wrap-up
Tour the Biosphere 2: All registrants can visit Biosphere2 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.
Post-race: If you can't make the race weekend activities, please note that any remaining shirts will be brought to the Running Shop and available for pickup between April 21 - May 15. To get the size you want, pick up your shirt in advance.
