Boulderthon

Run a Marathon in the Happiest City in the US! Boulder Marathon, Half, 10k, 5k!

05/12/2024

Strollers now warmly welcomed on our 5K 💕

Proudly introducing the first-ever Stroller Race, one of many 2024 initiatives we are rolling out to make Boulderthon even more inclusive 🫶 (stay tuned on more to come!)

Thank you to for your continual inspiration and showing us how to integrate running and motherhood so beautifully.

Neely is a Mom of 2, the 2022 Boulderthon winner, 4x Olympic Trials Qualifier, Author, Coach, and our friend ❤️

When registering for our 5K, select “Yes! I’m racing with a stroller” upon checkout. If you are already registered and wish to transfer to the Stroller Race, email [email protected]. The Boulderthon Stroller Race will be the last wave of the 5K.

Happy Mother’s Day 🥰

Photos from Boulderthon's post 04/17/2024

🚨 THIS IS BIG 🚨 has named Boulderthon’s 5K as the 5th best in the United States, while simultaneously announcing its half marathon as the 8th best in the US, in its 2024 10 Best Readers’ Choice awards. THANK YOU TO , ALL WHO HAVE RUN, VOLUNTEERED, SUPPORTED, PARTNERED — WE ❤️ YOU!

The lists are curated by USA Today editors reviewing thousands of races across the USA, narrowing it down to the top 20 in each category by a panel of expert runners, and then voted on by readers to determine the winners.

The fourth annual Boulderthon race series is taking place on September 29, 2024, and will feature a marathon, half marathon, 10K, 5K and Kids Run. The marathon and half marathon will once again have their start and finish lines located in downtown Boulder.

02/02/2024

IMPORTANT RACE UPDATE
In short: we have to change our date for the second time, and we are incredibly sorry. Based on the CU Football schedule, Boulderthon 2024 will move its date from September 22nd, 2024 to the following weekend, September 29th, 2024.

Why: The CU Football schedule was published on Tuesday and CU will now be playing at home on Boulderthon weekend. We immediately initiated an all-hands meeting with city, county, and law enforcement officials to discuss the feasibility of hosting Boulderthon on the same weekend as a CU Home game.

The outcome: In conjunction with our city, county and law enforcement partners, we have determined that given the limited availability of resources, we cannot simultaneously produce a high-quality event the size of Boulderthon (10,000+ runners plus 25,000+ visitors) on the same weekend as a CU home game (50,000+ people) within 24 hours of each other.

We know — this is the second time we had to do this. It’s frustrating, especially for those who are coming in from out of town and have travel booked, and we sincerely apologize for any inconvenience caused. It’s not what we wanted either, but we ultimately have to do what’s best for the community and the safety of our runners based on limited resources and safety personnel on an all-hands on deck CU football home game weekend.

If you can’t make the new date, simply email us at [email protected] and we’ll process a 100% refund within 7-10 business days from confirming your receipt of your email.

We have learned from this experience and take full responsibility for this change. You have our word that we will do better in future years when it comes to balancing our date announcement with the CU football schedule. If you have any questions about why we made this decision, please feel free to contact our team.

We are sorry again to have to make this change, but we hope to see you on September 29th, 2024.

01/11/2024

‼️Exciting news for all Boulderthon participants: we’ve partnered with The Feed, the ultimate place to find your sports nutrition! With The Feed as our official nutrition platform, we are thrilled to be the first major marathon series to offer a range of options and diversity of product on course, since we understand that every runner has their own preferences.

Whether you’re aiming for a new personal best or just enjoying the marathon experience, The Feed offers over 250+ sports nutrition brands to choose from. The Feed also provides free coaching to ensure you get the right nutrition at the right time of your training and racing.

⭐️Bonus: Get $20 right now to spend at The Feed to start fueling your training. You will receive an additional $20 every quarter, once you sign up!

12/11/2023

Did someone say International Mountain Day?? 🏔️

Who can name the five major peaks in Boulder? For added challenge, list them in order from south to north!

📸:

12/08/2023

Running toward the weekend like…🏃🏻‍♂️🥳🏁

📷: Blair Fraley

11/04/2023

Wishing all runners an amazing day tomorrow 🙌😎

Start Village Weather: 50-52° ☀️👌
Boulderthon Pro Tip: The fun is every mile, but the race begins at Mile 20. Be conservative and save ⛽️ in the tank for the last 10K — including the gradual hill at Mile 23 heading into . You are STRONG! Let’s DO THIS! 💪

PC: 2016 participant event highlights

Photos from Boulderthon's post 11/02/2023

The weekend after this year’s race, we had a special event with & to help our runners rest & recover after the event and connect with their peers!

Thank you to for capturing these shots, to for the delicious bites for collaborating with us on the event and outfitting our runners & for hosting in their beautiful space!

Photos from Boulderthon's post 10/30/2023

This is Boulderthon — as AI “sees” it 😉

We couldn’t resist the trend 😊. WDYT?

Our prompt: Run Boulderthon, the Boulder Marathon race series next Fall.

Created by — go to bing.com/create to create yours.

10/27/2023

🚨BIG NEWS🚨Our 2024 edition will be held on Sunday, September 22nd, 2024! All races will be hosted on this day.

Though we originally chose Labor Day, after close consultation with our City, County, and law enforcement partners, and reviewing the new CU football schedule, Parents Weekend, as well as runner feedback, we are excited to share this change and new date with you. Boulderthon Race Weekend already sees 100% of hotels being sold out in Boulder, so adding to the Labor Day Weekend would additional strain and impact to an already busy weekend.

We apologize for any inconvenience. However, rest assured, if you cannot attend our new date on Sunday, 9/22/24, with Boulderthon’s flexible refund policy, any participant who registered prior to 12/31/23 can request a full refund, no questions asked, up to 90 days before the event. 

In other words, if our new date doesn’t work for you, simply email us at [email protected] and we’ll process a full refund 😊

We can't wait to see you on the Fall Equinox to kick off the season!

10/26/2023

We are thrilled to announce the first-ever winner of Boulderthon’s Next Top Influencer, Tania VanMeter!

This competition allowed participants to compete with each other off the race course and utilize their content creation skills. VanMeter delivered a video highlighting her running journey while being a mother. Her video captures the highs and lows of her journey to running in Boulderthon, and led to her well-deserved win! You can view the video here: https://bit.ly/3PTR9Pf

VanMeter took part in this year’s event, achieving an admirable time of 3:39:00 in the marathon. The 2023 Boulderthon race series saw almost 7000 participants of all ages and experience levels and was estimated to bring in $7.6 million in direct impacts for the Boulder area, up 139% from last year’s race. It was also found that the race supported over 5,000 jobs, benefiting Boulder businesses through retail, restaurant and hotel support.

Thank you to all the amazing participants who joined us for this year's race! It was such an amazing day and we can’t wait to see you all next year. Registration is now open to join us in 2024!

You can register for the 2024 race here: https://www.boulderthon.org/book

10/25/2023

Presale Entries are now available at the lowest price for the 2024 race!

We’re finalizing next years date and will announce it as soon as it’s confirmed 🥰

10/23/2023

Happy Monday Team👊🏻👊🏻

📸:

10/19/2023

We want to give a HUGE thank you to all of our 2023 volunteers! We couldn’t have done it without you✨

Photos from Boulderthon's post 10/18/2023

Pre-race snaps shots of our Female Marathon Winner, Hellen Jepkurgat✨

Hellen completed the course in 2:42:17 (chip time) and was the 3rd overall finisher👊🏻

Captured by the incredible

Photos from Boulderthon's post 10/16/2023

The Support Systems ✨🎉

📸: 1-5

10/16/2023

Tune in as we gush about all of the highlights from Boulderthon. Use the comment section during the live broadcast to share your favorite memories, too!

10/15/2023

Join our Race Director for a race recap with tonight at 7pm MST on Facebook!

Photos from Boulderthon's post 10/13/2023

Pre-race moments✨

At the Starting Village

📸:

10/11/2023

Your Pickups Are Available THIS SUNDAY from 12pm-2pm from Fleet Feet

Congratulations Runners!🎉

We hope you had a great time celebrating after the race and are recovering well :)

We will be hosting a pickup time THIS SUNDAY at Fleet Feet Boulder from 12pm-2pm (2775 Pearl St, Boulder, CO 80302) for the following:

-Age Group & Overall Awards
-Left Gear Check Bags
-Lost & Found
-Medal Pickup
-Finisher Shirt Size Exchanges and Finisher Shirt Pickups
(if you didn’t receive)

Please email [email protected] if you're planning on picking up any of the above items.

If you're not able to pick up during this time, please send us an email and let us know what you need to be sent and the best address to send it to.

Please allow up to 3 weeks for your items to be sent.

We look forward to seeing you soon!

10/10/2023

Your 2023 Race Photos are now available🎉

📸:

10/07/2023

Garage Parking is FREE today and tomorrow in Boulder!

Here’s a map of where to park!

Photos from Boulderthon's post 10/07/2023

Are you in the mood for a quick and tasty meal?🌮🌯

Stop by for their signature burritos, bowls, nachos & so much more!

They have 2 Boulder locations on Pearl St and on the Hill so you can satisfy your cravings wherever you are😋

Photos from Boulderthon's post 10/07/2023

Join us for one of our LIVE PODCASTS tomorrow at the Boulderthon Expo presented by 🎤

2:00pm Marathon Training Academy
Trevor Spencer from MTA interviews Boulder Local & Professional, author & Dad, Scott Jurek!

3:00pm Pure Ambition Podcast
Dominic Fusco will be interviewing Kim Clark & Caitlyn Miller

Podcasts will be held at the Expo and Podcast stage on Pearl near 14th Street.

Seating will be on the grass, so bring a lawn chair or blanket if you’d like!

Photos from Boulderthon's post 10/06/2023

✨ KEY INFORMATION-
Charity Bibs, Team Bibs
& Pace Bands✨

*All 3 are available in the Runner Information Tent near Bib Pickup on Pearl Street Mall in front of the Historic Boulder Courthouse

CHARITY BIBS
All charity runner get free Charity back bibs to Charity Back Bib to let everyone know what charity you fundraised for!

TEAM BIBS
All teams with 5+ runners receive customized team back bibs!

PACE BANDS
Pace bands are available for the Half & Full Marathon to help you stay on track whether or not you choose to run with a pace group.

Photos from Boulderthon's post 10/06/2023

Meet your Boulderthon Expo Musicans🎶🎵

On Saturday, we’re thrilled to have Relay Relay (formerly Stray Local) for year 3🙌🏻

Relay Relay is the husband-and-wife musical team of Jamie and Hannah Rowen. The pair perform all over the country and have a super fun set of unique indie pop originals and genre-spanning upbeat covers they make their own. The pair packs a full band punch into a tiny duo package.

On Sunday, we’ll have Diamond Empire Band💎

Diamond Empire Band are live music experts, wedding enthusiasts, and party starters. They’re a premium, customizable band specializing in high-energy music. They infuse every event with energy and fun and pride themselves on filling dance floors.🕺🪩

Photos from Boulderthon's post 10/05/2023

Through our Community Bib Program, we’re able to donate 250 bibs to deserving runners who otherwise wouldn’t be able to run. We’re always blown away by the inspiring runners who apply and are so touched by Melanie’s story.

Melanie Gillman is a single mom and leader in her family who works incredibly hard as the sole provider for her children.

In the past few years, Melanie has experienced many unexpected medical bills for herself and her family that have made it difficult to take the time for herself, including her passion of running.

Melanie has been running for 15 years and has always dreamed of running a race in Boulder, one of her favorite places. Though she lives in PA, she visits Boulder 2x per year and hopes to live here one day.

Melanie happened to have a trip to Colorado with her family planned for this weekend, and when she heard about our Community Bib program where we offer bibs to runners who otherwise wouldn’t be able to join us, she knew it was fate.

We’re so honored to be able to give everyday heros like Melanie the chance to join us at Boulderthon! She is a true example of always putting herself first and we’re so happy that we can give her the chance to give back to herself :)

Photos from Boulderthon's post 10/05/2023

If you’re looking for a quick, healthy meal while you’re in Boulder, check out 💚

Crisp & Green is a fast, casual, healthy restaurant. Enjoy made-from-scratch salads, grain bowls & smoothies crafted with fresh ingredients daily.

We recommend a Grain Bowl + Vegan Rice Crispie for your carb heavy meal🙌🏻

10/05/2023

🚨Early Bib Pickup ends today at 2pm!

Early Bib Pickup Locations:
🏃‍♂️Fleet Feet Boulder
(2775 Pearl St, Boulder, CO 80302)
🏃🏾Fleet Feet Cherry Creek
(2500 E 1st Ave, Denver, CO 80206)
🏃‍♀️Fleet Feet Greenwood Village
(8545 E Arapahoe Rd C, Greenwood Village, CO 80112)
🏃‍♂️Fleet Feet Littleton
(8116 W Bowles Ave, Littleton, CO 80123)
🏃‍♀️Fleet Feet Colorado Springs
(3659 Austin Bluffs Pkwy, Colorado Springs, CO 80918)

You can pick up from any location with the QR code emailed to you or accessed through the Boulderthon App!

Your bib number will be assigned to you at Bib Pickup.

Can’t pick up today? No worries!

Our Official Expo & Bib Pickup presented by will take place on Pearl St Mall between 13th & 15th from:
Friday, 10/6/23, 2pm - 6pm
Saturday, 10/7/23, 10am-6pm

If you are not able to pick up before race day, bib pickup will be available on race morning at the Starting Village.

We HIGHLY recommend picking up your bib before race day. Please arrive early if you need to pick up your bib on race morning.

Finisher Shirts will not be available at Early Packet Pick Up & will be picked up at the Expo presented by or on Race Day once you complete your race at the Official After Party.

Your Official Finisher Bag with all of your treats and special offer from our sponsors will be waiting for you at the finish line of your race!

Elite athletes must pick up their bibs at the expo or on race day!

Want your business to be the top-listed Gym/sports Facility in Boulder?
Click here to claim your Sponsored Listing.

Videos (show all)

Strollers now warmly welcomed on our 5K 💕Proudly introducing the first-ever Stroller Race, one of many 2024 initiatives ...
‼️Exciting news for all Boulderthon participants: we’ve partnered with The Feed, the ultimate place to find your sports ...
BOULDERTHON RACE RECAP SHOW
Boulderthon: Final PreRace Instructions Show
Who’s ready?! Kids Run, 5k, 10k - SOLD OUT. 2 weeks to Boulderthon! Signup today!
Another HUGE thank you to our incredible runners, supporters and partners on making our inaugural year so successful!  ☺...
The inaugural Boulderthon Marathon is underway! .⁣.⁣.⁣.⁣.⁣#halfmarathon #halfmarathontraining #happyrunner #instarunning...

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Boulder, CO
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