City of Trees Marathon

  • Date Sat 11th October 2025
  • Location Boise, Idaho
  • Price $27.95 - $59.69
  • Races 4 races
  • Distances Half Marathon, 10km, 5km

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Event summary

Get ready to lace up your running shoes for the City of Trees Marathon, taking place on Saturday, October 11, 2025, in the beautiful city of Boise, Ada. This exhilarating event offers a unique opportunity to experience the stunning Boise Greenbelt system, where runners can soak in the vibrant sights and sounds of nature. Participants can look forward to a range of exciting race distances that cater to all fitness levels, making it the perfect occasion for both seasoned marathoners and enthusiastic newcomers alike.

As you cross the finish line, you'll be rewarded not only with a coveted finisher's award but also with fantastic swag, including a stylish t-shirt hoodie, thanks to our generous sponsors. Remember, to ensure you receive your exclusive race shirt, be sure to register by October 2, 2025! Join us for a day filled with camaraderie, breathtaking scenery, and the thrill of running through the heart of Boise’s natural beauty. Whether you're racing against the clock or simply enjoying the journey, the City of Trees Marathon promises an unforgettable experience!

Organiser's Description

SATURDAY, OCTOBER 11, 2025
Check for Course Maps under the "Event Info" tab above in the menu.

GREAT SWAG AND T-SHIRT DEADLINE
Coveted t-shirt hoodie shirt, swag thanks to our amazing sponsors, and finisher food/drink, all COT runners get a finisher's award. PLEASE NOTE THAT REGISTRANTS REGISTERING AFTER OCTOBER 2, 2025 ARE NOT GUARANTEED A SHIRT.

Please note courses utilize the Boise Greenbelt system. Should we run the Greenbelt, the river can be unpredictable. Systems and entities that govern the local Greenbelt are constantly dealing with these challenges. Typical issues are created due to sidewalk construction, sinkholes, flooding, etc. During the run, you may encounter wildlife that may cause a delay in your progress and/or change in your planned route. Or you may cause your own delay to stop and listen to the amazing sounds this course creates.

Races

  • Marathon

    Incl. $4.69 Fee & T-Shirt

    Sat 11th October 2025 (8:00AM EDT)

    $59.69

  • Half Marathon

    Incl. $4.11 Fee & T-Shirt

    Sat 11th October 2025 (8:30AM EDT)

    $49.11

  • 10k

    Incl. $3.53 Fee & T-Shirt

    Sat 11th October 2025 (9:00AM EDT)

    $38.53

  • 5k

    Incl. $2.95 Fee & T-Shirt

    Sat 11th October 2025 (9:00AM EDT)

    $27.95

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Location

733 S Pioneer Street, Boise, 83702, ID, United States

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Oct 11, 2025

$27.95 - $59.69