Fun, free community workouts in Boulder

ATOMIC TRACK CLUB

Weekly runs on track, road, and trail for every type of runner! Come and join the most fun, inclusive, community driven run club in Boulder!!

Our run club was founded in the Summer of 2023 and has grown to a community of over 250 runners.

We provide free weekly runs and workouts for all runners, from beginners to advanced, from 5K to ultra runners.

This is a unique club that provides the opportunity for runners of all levels to learn from seasoned runners. How many run groups can you attend with free structured workouts that attract so many different types of people?! It’s inspiring to learn from and share runs with our amazing community!

Atomic Track Club

Group of runners and their dog on an outdoor track with mountains and trees in the background at sunset.

TRACK

Track TUESDAYS @ 5:45PM (on all year round). Our main session with 40-60 runners. Your choice of intervals or fartlek session! Includes modifications. Inspiring environment for all runners. Meet at Manhattan MS Track

Track THURSDAYS @ 6:15AM (on all year round). A morning track workout with 20-30 runners. Mix of Intervals, Fartleks, and Tempo sessions. Includes modifications. Meet at Manhattan MS Track

Promotional poster for the Atomic Track Club, featuring photos of runners at the track and group activities, with event details indicating Tuesdays at 5:45 PM at Manhattan Track, encouraging people to 'Feed the Proton'.

ROAD

dead rat run club FRIDAYS @ 5PM location changes each week. 6-7 mile runs at 9min/mi pace. Followed by drinks!

Weekend Long Runs no fixed cadence but frequent opportunities to run with others when train for road races (e.g. Fall marathons).

Group of 12 people standing outdoors on a trail at sunset, with mountains in the background.

TRAIL

Atomic Trail Team SATURDAYS @ 8AM location changes each week. Weekly runs throughout Spring and Summer. Ad-hoc runs during Fall.

A group of 15 hikers, mostly women, standing together outdoors on a trail in a forested area with trees and a sign for Deer Mountain.

Join our community and get faster today!

Contact us via the form, send us a text, or find us on Instagram @atomictrackclub to join our WhatsApp community.

Contact us

Structured group coaching programs

  • A group of people sitting on a football field during sunset, participating in an outdoor exercise session led by an instructor. Some are wearing athletic clothing, others are shirtless, and they are seated on mats or the grass.

    BOLDERBoulder 10K training

    Our 8 week training program to get you ready for BOLDERBoulder. Includes training schedule and structured group track workouts every Monday. Program is designed to get you a PR and have fun doing workouts with new people! Restarts in March 2026 - stay tuned for updates

  • A group of twelve young athletes stands together on a running track with mountains in the background, during sunset.

    Atomic Race Team (ART)

    Dedicated group doing road workouts and long runs to prepare for races. Threshold workouts designed to get the crew running faster and improving race pace. Not available to the public directly so please join our other weekly runs and/or training programs to get started with Atomic first

Sign up for one of our coaching programs

Contact us via the form, send us a text, or find us on Instagram @atomictrackclub to find out more about our club, group runs and current training programs

Contact us
A man running in a marathon, wearing a black shirt, black shorts, sunglasses, and an orange bib with the number 3360, with a group of runners behind him on a curved road lined with trees.

Get started with a free Atomic Performance Coaching consultation

Looking for 1-to-1 coaching services to take your running to the next level?

Get in touch