Run Boulder Events

05/06/2024

Where will you be on Mother's Day? Join us for a new Boulder tradition! The Mother's Day Heart and Sole Half Marathon, 10k & 5k is less than 1 week away! Run as a Mother/Daughter or Mother/Son team! Cinch bag, race shirt, race hat, and finisher's medal included. Registration closes in 4 days. Come run with us!
Register: https://raceroster.com/events/2024/84191/the-mothers-day-heart-and-sole-half-marathon-10k-and-5k

04/29/2024

Less than two weeks to go!

That's right! Less than two weeks away from the inaugural Mother’s Day Heart and Sole Half-Marathon/10k/5k taking place on May 12, 2024 at the beautiful Boulder Reservoir. Having been named Colorado’s Best Half Marathon by the Colorado Runner magazine. Included with your entry fee is a commemora...

04/09/2024

Celebrate Mother's Day

LOWA is proud to be a sponsor of the Mother’s Day Heart & Sole Half Marathon/10K/5K on May 12th. Stop by our booth to say hi to us and our retail partner, Boulder Orthotics. We’d love to show you our collection of ATR trail runners and invite you to demo a pair of FORTUX trail runners so you can...

04/02/2024

Who's excited about the Mother's Day Heart and Sole Half Marathon, 10k & 5k. Comin your way May12th! Be part of a Boulder tradition: Register: https://raceroster.com/events/2024/84191/the-mothers-day-heart-and-sole-half-marathon-10k-and-5k

03/12/2024

Mother's Day

Hello 303 Family!! In case you haven’t heard, 303 Running will be hosting the Mother’s Day Heart and Sole Half-Marathon/10k/5k taking place on May 12, 2024 at the beautiful Boulder Reservoir. Having been named Colorado’s Best Half Marathon by the Colorado Runner magazine. We will have special ...

03/11/2024

Don't miss out on the Inaugural Mother's Day Heart and Sole Half Marathon, 10k & 5k. Coming to you on May 12th! Special Mother/ Daughter and Mother/ Son teams. Price includes race hat, swag bag, race shirt, and finishers medal! Be part of Boulder tradition..
Register: https://raceroster.com/events/2024/84191/the-mothers-day-heart-and-sole-half-marathon-10k-and-5k

02/21/2024

Mother's Day

Hello 303 Family!! If you haven’t heard, 303 Running will be hosting the Mother’s Day Heart and Sole Half-Marathon/10k/5k taking place on May 12, 2024 at the beautiful Boulder Reservoir. Having been named Colorado’s Best Half Marathon by the Colorado Runner magazine. We wanted to highlight one...

01/01/2024

05/04/2023

Registration is now open for two great July 4th events! A great way to start off your Independence Day! A great family event.
The Superior Mile starts at 7am : more info and registration: https://raceroster.com/events/2022/60174/2023-superior-mile
The Niwot Mile starts at 8:30am: more info and registration: https://raceroster.com/events/2023/74803/2023-niwot-mile

07/05/2022

05/31/2022

Registration is now open for two fantastic races for one great cause. The Superior Mile and Niwot Mile are set to for this July 4th holiday !! The Superior Mile starts at 7am and the Niwot Mile starts at 8:30am. Why not run Both?? Pancake breakfast and parade follow both races. Come out and support your local community! A great way to start your Independence Day Register: https://raceroster.com/events/2022/60174/2022-superior-mile
https://raceroster.com/events/2022/60175/2022-niwot-mile

05/23/2022

Start off your July 4th with the Niwot Downhill Mile! We are creating a community event to celebrate not only our independence, but also our resilience after a tough 2021. Come celebrate with friends, family, and our running community. Following the race a pancake breakfast will be held at Niwot Mar...

07/01/2021

Pre-registration is open until noon July2nd. Register the whole family: https://raceroster.com/events/2021/48143/the-niwot-mile

💥The 4th of July is this Sunday💥
There is still time to register for the Niwot Mile! You don't want to miss this one...
💲OVER 1K total in prize money 💲
🥞Pancake Breakfast after you finish!
💥This is the perfect way to spend your 2021 4th of July

303Running

06/22/2021

When Kara Goucher (formerly Kara Ggas-Wheeler), lined up for the 2000 NCAA cross country championships in Ames, Iowa, it was so cold that when the starter yelled across the start line for the teams…

06/12/2021

Posted • Registration is open🎇 Start off your July 4th with the inaugural Niwot Downhill Mile!

We are creating a community event to celebrate not only our independence but also our resilience after a tough 2020. Come celebrate with friends, family, and our running community.

All ages and abilities welcome✨
Free giveaways, race shirts, prize monies, and a pancake breakfast to follow at Niwot Market! Link on website

06/12/2021

Raise your hand if you like PRs! Our Niwot Downhill Mile Race is sure to be a PR bonanza!
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Link in bio and comments to register for the inaugural July 4th Niwot Downhill Mile!

05/11/2021

Register today!