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Ho-ho-holiday fun for all abilities!

All-Out Fa La La

Saturday, December 6, 2025 9a

Big Dry Creek Trail, Westminster, CO

Half Marathon

Price: $85.80
incl. $5.80 Fee
Time: 9:00AM MST 1:00PM MST
Registration ends December 6, 2025 at 8:50am MST

10K

Price: $64.60
incl. $4.60 Fee
Time: 9:30AM MST 1:00PM MST
Registration ends December 6, 2025 at 9:20am MST

5K

Price: $54
incl. $4 Fee
Time: 9:40AM MST 1:00PM MST
Registration ends December 6, 2025 at 9:30am MST
Run anywhere, anytime!

VIRTUAL Half Marathon

Price: $64.60
incl. $4.60 Fee
Get your alumni credit & the event SWAG
Run anywhere, anytime!

VIRTUAL 10K

Price: $54
incl. $4 Fee
Get your alumni credit & the event SWAG
Run anywhere, anytime!

VIRTUAL 5K

Price: $48.70
incl. $3.70 Fee
Get your alumni credit & the event SWAG

Trail Conditions Update

Update: we heard from folks yesterday at early packet pickup that the concrete parts of the trail look good. We will update this afternoon if we see ice patches anywhere. Half marathoners, please definitely check out our update for the soft surface section of the course between Aid 5 and the turnaround so you know if you might see a little mud.

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Hi Fa La La athletes! We know the recent snow has many of you wondering about the trail. We've been out checking the Big Dry Creek Trail in Westminster, CO , and here's a representative picture. Here is what you need to know about the impact on Saturday's event.

What about Saturday?

It's still three days away! Conditions can change a lot between now and race morning, especially with weather patterns on Thursday and Friday.

When will we know the official conditions?

  • We will be marking the course on Friday afternoon.
  • We'll give you a final update on the trail conditions we expect to see on Saturday at that time on social media and this website.

If you have concerns about the trail conditions, we want to remind you of your options:

  • Change Your Distance:You can always downgrade your race distance up to 10 minutes before your chosen distance starts.
  • Switch to Virtual: If you feel the course conditions won't meet your fitness goals, you can switch to virtual participation.
    • Virtual events will remain open until 9:30 AM on Saturday.
    • We'll mail your medal and swag to you at no extra cost.

Keep an eye out for our official course condition update on Friday afternoon! We look forward to seeing your holiday spirit on the trail!

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Athlete Details Are Live!

Athlete details were sent out Monday, 9a to registered athletes. Didn't get your email? Check your spam folder, look at the details under Athlete Details in the menu above, or verify your registration using the link under Event Info above.

Reasons why to be a part of FLL

  • The only December half marathon in the Denver area!
  • Groups can run different distances from 5K to half marathon
  • A wonderfully flat course with great views of the Front Range
  • The flat course is great as a BOLDERBoulder qualifier
  • Lots of on-course support for every distance, including dogs!
  • We permit dogs and strollers on-course as long as you follow basic trail etiquette
  • TONS of free parking very close to the start line and a convenient location
  • Medals for all, including 5K, and free medal engraving to customize your keepsake!
  • Virtual option if the weather race day doesn't match your training goals
  • Celebrate to holidays with great music in the venue and our informal costume contest (winners notified after the event)
  • A fun, ugly sweater beanie!
  • Full-color keepsake bibs, personalized if you register by two weeks before the event
  • A toy drive and donations supporting A Precious Child, so we can make many children's Christmas and Hanukkah bright!

Ho-ho-hit the trail this holiday season at the 14th Annual Fa La La 5K, 10K & Half Marathon! This festive run/walk benefits A Precious Child and takes you on a scenic journey along the Big Dry Creek Trail with amazing Front Range views. Bring your furry friends (they'll love the soft surfaces!), your holiday spirit, and a gift donation. Don't miss our summer Dog Days event for another tail-wagging good time and to track your fitness progress in our endless series challenge!

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An official BOLDERBoulder qualifying event!

We are thrilled to announce that Fa La La has been designated as an official BOLDERBoulder Qualifier event! You can use your finishing time from any distance of this race to qualify for one of the 2026 BOLDERBoulder's qualified waves. For more details on the BB10K qualifying waves, please visit this link.

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Benefiting Charity

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For more than 166,000 Colorado children living in poverty, some of the most treasured traditions of childhood are not always an affordable luxury. When keeping the heat on in the dead of winter and having running water take precedents over presents or when a child's wish list includes things that are needed (like new socks or a toothbrush) rather than items that are desired, it's no wonder that many children return to school after the break feeling less excitable to arrive to class to show off their new toys to their peers.

The simple act of celebrating each and every child, despite their circumstances, is at the heart of Precious Gift. When keeping the heat on in the dead of winter and having running water take precedents over presents or when a child's wish list includes things that are needed (like new socks or a toothbrush) rather than toys, it's no wonder many children feel left out during the holidays.

There will also be an on-site toy drive! Bring an unwrapped gift and receive a $10 off coupon for a future All-Out event! Read more for the most needed gifts.

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