Run Boulderthon: The Boulder Marathon

Rally your run crew, and earn up to $2,000 of flight credit on Frontier.

We’re partnering with the top 20 run clubs across America to bring more runners to Boulderthon — and we’ve teamed up with our friends at Frontier Airlines to make it happen.

Rally 5 or more runners who want to run Boulderthon, and you could earn up to $2,000 in free Frontier flight credits — plus a shot at VIP race perks and an unforgettable getaway to Boulder.

💥 How to Win

✍️ Submit your entry form - 1 entry form per Run Club member - submit as many individual entries as you'd like for your team to increase chances.

📸 Follow Boulderthon and Frontier on Instagram for 2 bonus entries.

🏃‍♀️🏞️📣 Post on Instagram telling us why your run club should fly free to Boulderthon and tag 5 runners you want to race with (up to 5 bonus entries).

Maximum of 7 bonus entries.

Top 20 Run Clubs flying free to Boulderthon will be announced on August 8th.

FLY FREE TO BOULDERTHON

Brad

I've run nearly 50 marathons and/or half marathons and this ranks among the very best. Race day execution was flawless and I echo the previous comments about the professional staff and well organized volunteers groups. Looking forward to next year already!

Matt

"Great Day, Great Race. I can’t imagine a marathon that is run any better. Everything went well, volunteers were plentiful and helpful, aid stations were great, and the weather was perfect for a long run. And Boulder turned out in force to cheer us on."

Miranda

This was by far one of the best races I’ve participated in - Aid stations were dispersed well and there was so much help and encouragement from the volunteers and police officers. Thank you thank you thank you.

Jess

Fun course, positive vibes, beautiful views and just enough support along the way. Thanks to all who helped make this race happen. I’ll be back every year. Perfect Race.

Jamie

"This was my 1st half marathon race and I had a blast! Everyone was in a great mood and the course was beautiful! Thank you all!"

Saige

"Fantastic Race. Great job to all who organized this event. You knocked it out of the park! From the great communications, well organized packet pick ups, friendly aid and water stations, and after party."

Pete

"Terrific race, beautiful course. Staff and volunteers were first class all the way!"

95% of runners would recommend to their friends, with #1 reason being Downtown Finish & Course Views.

✈️ Run Together, Fly Free to Boulderthon with Frontier!

Boulderthon Marathon Reviews

I've run nearly 50 marathons and/or half marathons and this ranks among the very best. Race day execution was flawless and I echo the previous comments about the professional staff and well organized volunteers groups. Looking forward to next year already!

This was by far one of the best races I’ve participated in - Aid stations were dispersed well and there was so much help and encouragement from the volunteers and police officers. Thank you thank you thank you.

Fun course, positive vibes, beautiful views and just enough support along the way. Thanks to all who helped make this race happen. I’ll be back every year. Perfect Race.