Tucson Marathon Events

More cycling events nearby

• Desert Peak Ultra [desertpeakultra.com] [Register at ultrasignup.com]

  Sat, Apr 11, 2026

  21 km
  36019 S Mt Lemmon Rd, Pinal County, Arizona, 85623, United States
  OpenStreetMap Google Maps

  50k 100k Ultra

• TMC Earth Day 5K at Biosphere 2 [runtucson.net] [Register at runsignup.com]

  Sat, Apr 18, 2026 at 8:30 AM

  Description

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  Looking for a way to celebrate Earth Day? Join us at Biosphere 2 for a 5k run and walk, entirely on the grounds of the famed facility. Whether you're a seasoned athlete or just looking for a fun way...

  Looking for a way to celebrate Earth Day? Join us at Biosphere 2 for a 5k run and walk, entirely on the grounds of the famed facility. 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.

  Clear your schedule and join us at the April 18th TMC Earth Day 5k, where you can walk or run the hidden Biosphere 2 backroads, nestled at the base of the majestic Catalina Mountains, north of Tucson. The rolling 3.1 mile course is perfect for racing and walking, with gorgeous desert and mountain views and a start and finish on the beautiful Great Lawn.

  After the 5k, you can relax, listen to music, snag some food, and enjoy other fun activities, so make sure to stick around to socialize and have some fun. All registrants receive free entry to the Biosphere 2 informative tour of the renowned research facility, with an exclusive peek into the inner workings of the Biosphere 2, a wild world of wetlands, rainforests, grasslands, fog deserts, and the big blue ocean. It's like a backstage pass to nature's superstar habitats!

  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.

  • Souvenir shirt to first 600 registrants

  • Timed 5k with finisher's video

  • Age group and overall awards courtesy of The Running Shop

  • Free entry to the world-famous Biosphere 2

  • Snacks and drinks

  • Food trucks with yummy post-race food for purchase

  • Children's activities

  Schedule

  Thursday, April 16

  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 18 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.

  Nice words from 2024 runner Dale: It’s important to me to thank the people who help make Tucson the awesome community it is! Saturday’s Earth Day was fabulous! I’ve been fortunate to attend all the races you’ve had out there! Just the view and space is incredible and what a gift to be able to “struggle” up the hills while taking it all in! Thank you so much for all you and your staff/team do.

  Nice words from 2024 runner Louise: Wow!! Are you guys efficient or what? Thanks so much for the quick turnaround with results and, again, for organizing and running a great event. The water stop was especially appreciated on a hot day. (And even if we were running short of time, the announcer was funny and added an enjoyable element to announcing the winners.)

  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. Special $5 price for children 14-and-under: includes race number, timing, and entry to Biosphere 2, but no t-shirt.

  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 tia@runtucson.net.

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

  Questions? Contact Race Director Randy Accetta at randy@runtucson.net.

  12.6 km
  29817 Biosphere Road, Pinal County, Arizona, 85623, United States
  OpenStreetMap Google Maps

  3.1 Miles 5k Run Walk

• Everyone Runs Catalina State Park 50-Year Trail Race and 5k Trail Run & Walk [everyoneruns.net] [Register at runsignup.com]

  Sun, Sep 20, 2026 at 6:00 AM

  Description

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  Come join us for this challenging 9.3 Miles on the Nature and 50-Year Trails. Your run begins with the Nature Trail, then to the Bridal Trail to the 50-Year Trail (2.7 miles up) and turnaround at the...

  Come join us for this challenging 9.3 Miles on the Nature and 50-Year Trails. Your run begins with the Nature Trail, then to the Bridal Trail to the 50-Year Trail (2.7 miles up) and turnaround at the gate to go back down and off to the Bridal Trail to the finish. The 9.3 mile event is only open to runners and run walkers that can absolutely complete the race within 3 hours (9am).

  The 5k trail run is open to runners and walkers and will be run on the Nature Trail and Bridal Trail.

  Message us for discounts for teachers, police, fire, emts, and veterans/active duty!

  With your registration you'll enjoy our homemade Mexican breakfast, free doughnuts, free fruit and nuts, free professional race photos to download in any size, quality finisher shirts in cotton and tech (male and female sizing), and overall and 5-year age group medals for 1st, 2nd, and 3rd place. Overall winners will take home free running shoes from Fleet Feet!

  Bib and parking pass pick-up:

  September 18, 10am - 6pm, only at Fleet Feet on Tanque Verde

  September 19, 10am - 4pm, only at Fleet Feet on Oracle Rd.

  Note: if you register on September 18, your bib will only be available on September 19 at the Oracle location. If you register on September 19, your bib will only be available at the race.

  IMPORTANT: your pre-purchased parking pass must be picked up no later than September 19 at 4pm at Fleet Feet at the Oracle location.

  For event details, please visit everyoneruns.net or click on the event details tab above. Dogs are not permitted for liability reasons. Entry fees are not refundable and bibs cannot be transfered without prior approval by Everyone Runs. Please consider purchasing event insurance during your registration process.

  22.7 km
  11570 N Oracle Rd., Tucson, Arizona, 85737, United States
  OpenStreetMap Google Maps

  3.1 Miles 5k 9.3 Miles Run Trail Walk

• Dave's Run For ALS [runsar.org] [Register at runsignup.com]

  Sun, Nov 01, 2026 at 7:00 AM

  Description

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  Dave’s Run for ALS is a super-fun, family event for runners and walkers of all ages and abilities.

  DAVE'S DOUBLE IS BACK THIS YEAR BY POPULAR DEMAND (run both the 8K and 5K and win a special prize)!!...

  Dave’s Run for ALS is a super-fun, family event for runners and walkers of all ages and abilities.

  DAVE'S DOUBLE IS BACK THIS YEAR BY POPULAR DEMAND (run both the 8K and 5K and win a special prize)!!

  The event is named for the late David Filer who was an avid runner, active SAR member, and local business owner. David was diagnosed with ALS, also known as Lou Gehrig’s Disease, in the summer of 2000. Currently there is no cure for this fatal disease. A portion of the proceeds from the event will go specifically for ALS research, via the Jim Himelic foundation. Race distances are 8K and FitKidz and Family 1 Mile Run/Walk. Awards in the 8K in 5 year age groups.

  Run more, pay less! SAR members receive a discount that covers RunSignup fees at all SAR-owned races. Not a member? Join SAR: https://runsignup.com/MemberOrg/SouthernArizonaRoadrunners

  6:15am - 6:45am - Packet Pickup 8K

  7:00am - 8K Start (*Running Shop Grand Prix event)

  7:00am - 8:15am - Packet Pickup 5K and FitKidz Mile

  8:30am - 5K Start

  8:35am - FitKidz Mile Start

  9:15am - Award ceremony for both the 8K and 5K

  WHAT AWESOME STUFF DO YOU GET WITH DAVE'S RUN FOR ALS?

  • FREE Shirts (8K & 5K) - while supplies last

  • FREE finisher medals (8K & 5K) - while supplies last

  • PRIZES in 5 year age groups plus overall women & men including Running Shop Gift Certificates for winners

  • FREE snacks and Eegees! (ALL)

  • PRIZE for the largest team (must pre-register a captain and team members who run the 8K or the 5K)

  • Supporting the fight against ALS! (ALL)

  23.6 km
  2110 W Curtis Rd, Pima County, Arizona, 85705, United States
  OpenStreetMap Google Maps

  1 Miles 5k 8k 13k Run Walk

• Everyone Runs Veterans Day Catalina St. Park 10.6 & 5.3 Mile Trail Races + 5k Road Run [everyoneruns.net] [Register at runsignup.com]

  Sun, Nov 08, 2026 at 7:15 AM

  Description

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  Enjoy the beauty of nature and easy trails at Southern Arizona's Favorite Trail Race at Catalina State Park! Two distances: 10.6 and 5.3 miles. Your race starts and finishes at the park trail head....

  Enjoy the beauty of nature and easy trails at Southern Arizona's Favorite Trail Race at Catalina State Park! Two distances: 10.6 and 5.3 miles. Your race starts and finishes at the park trail head. Your 5k road run takes place on the fast and flat roads of the park. No potholes, no cars. Just magnificent nature!

  If you're a veteran, or active duty, please use these codes at checkout to save $$$ (these are exclusively for Veterans and Active Duty military and reservists).

  5k: Vet5k

  5.3 miler: Vet5

  10.6 miler: Vet10

  Message us for discounts for teachers, police, fire, emts, too!

  At Everyone Runs we always strive to provide the most value for your money. With your registration you'll enjoy

  • Our free homemade Mexican breakfast

  • Free professional race photos to download in any size

  • Free coffee, fruit, nuts

  • Quality finisher shirts in cotton and tech (male and female sizing)

  • Awards: overall and 5-year age group medals for 1st, 2nd, and 3rd place. Overall winners in the 10.6 and 5.3 mile trail races will take home free running shoes from Fleet Feet!

  Bib pick-up details:

  November 6, 10am - 6pm, only at Fleet Feet on Tanque Verde

  November 7, 10am - 4pm, only at Fleet Feet on Oracle Rd.

  Note: if you register on November 6, your bib will only be available on November 7 at the Oracle location. If you register on November 7, your bib will only be available at the race.

  IMPORTANT: your pre-purchased parking pass must be picked up no later than November 7 at 4pm only at the Fleet Feet Oracle location.

  For event details, please click on Race Details in the menu bar at the top of this page. Dogs are not permitted for liability reasons. Entry fees are not refundable and bibs cannot be transferred without prior approval by Everyone Runs. Please consider purchasing event insurance during your registration process.

  22.7 km
  11570 N Oracle Rd., Tucson, Arizona, 85737, United States
  OpenStreetMap Google Maps

  5k 5.3 Miles 10.6 Miles Run Trail