Insider secrets to running, spectating, and celebrating Colorado’s most iconic 10K

If you’re gearing up for the Bolder Boulder—or just curious why this race is such a big deal—you’re not alone. Every Memorial Day, over 40,000 runners flood Boulder’s streets for this legendary 10K. But what separates the seasoned locals from the out-of-towners? Here are five things only Boulder insiders know about race day—and they just might change how you experience it.

1. The Real Race Happens on Folsom Field

While the course itself is electric, the finish line at Folsom Field is pure Boulder magic. But here’s what most visitors don’t realize: the stadium fills up with fans early, especially for the tribute to fallen service members and the iconic flyover. If you want to snag a good seat to cheer on the finishers (or watch the pros blaze through), get there before 9 a.m.—yes, even if you’re not racing. It’s worth it.

2. The Best Costumes and House Parties Are on 13th Street

Sure, the elite runners are impressive. But the true spirit of the Bolder Boulder lives on 13th Street, where Boulder residents turn their front yards into wild cheering stations, foam pits, and water gun ambush zones. This is where you’ll find runners in full-body banana suits, Elvis impersonators handing out high-fives, and DJs spinning beats for passing waves of joggers. If you’re spectating, this is the place to be.

3. Locals Park Far and Bike In

Out-of-towners often scramble for race-day parking, but locals know better: don’t drive anywhere near downtown.Boulderites park miles away—or better yet, bike to the starting corrals. Many even walk from neighborhoods like North Boulder or Table Mesa. Want to make it smooth and stress-free? Use one of the designated bike valets near 30th Street or CU’s campus.

4. There’s More Than One Wave Worth Running

Yes, the A-wave is for elite runners, but some of the most fun, festive, and bizarre waves happen later in the morning. Locals love the costume waves, barefoot waves, and even stroller waves. You don’t have to be fast to be part of the fun—you just need to register and pick a wave that fits your vibe. Want a water balloon fight mid-race? You’ll find it in the middle waves.

5. The Real Celebration Happens After the Race

The finish line might be on Folsom Field, but the party spills across the city. Locals head straight for post-race brunch at The Buff, Lucile’s, or Snooze, while others celebrate with a pint at Avery Brewing or a flatbread on Rayback Collective’s patio. Many runners grab their commemorative T-shirts and medals and head straight to Boulder Creek to soak their tired legs in the cold mountain water. It’s the Boulder way.

Final Tip: Soak It All In

Whether you’re running your first Bolder Boulder or spectating from the sidelines, this isn’t just a race—it’s Boulder’s biggest block party. Locals treat it like a holiday, complete with traditions, reunions, and plenty of sunshine. So get there early, smile at strangers, and enjoy every foam pit, bacon station, and mountain view along the way.

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