Not So Flatt Breast Cancer Awareness Run/Walk – 5K & 10K in Denver, CO
Not So Flatt Breast Cancer Awareness Run/Walk – 5K & 10K in Denver, CO is a running race on October 2, 2027 in Westminster, CO, with entry fees from $10 to $40.
- Date
- October 2, 2027 (340 days to go)
- Price
- $10–$40
- Sport
- Running
From the Organizer
Join us in honoring survivors and supporting the fight against breast cancer.
The 5th Annual Not So Flatt Breast Cancer Awareness Run/Walk on October 4, 2025, will be in Westminster, CO. Participate in our 5K or 10K event supporting breast cancer research.
Honor, remember, and support the fight against breast cancer at our annual breast cancer awareness run. In 2021, my father lost his battle with breast cancer, and we started this event to bring the community together, celebrate survivors, and support those still fighting. His last name was Flatt—but his fight wasn’t flat, and neither is the strength of our community.
Event Highlights:
Race Options: 5K walk/run and 10K run—perfect for all ages and fitness levels.
T-Shirts & Medals: All participants receive a race T-shirt; top finishers earn medals.
Special Registration Offers:
5K: $30 until September 12th, then $35. Donate $35 while registering and get $30 off!
10K: $40 until September 12th, then $45. Donate $45 while registering and get $40 off!
Race Day Goodies: Bib pickup includes your race day schedule, shirt, and surprise goodies. Sign up after September 15th and your shirt size may not be guaranteed.
Virtual Run: If you’re unable to attend in person, you can register for our virtual run! The signup cost goes straight to donations for Breast Cancer Research. Submit your photo, and we’ll feature it on our website and social media to celebrate your participation.
Why Participate:
Support groundbreaking breast cancer research through the Breast Cancer Research Foundation.
Join a compassionate and inspiring community affected by breast cancer.
Honor loved ones and survivors while enjoying a fun, family-friendly event.
Don’t miss out on this meaningful 5K race for charity and 10K run for a cause! Register today, share with friends, and help us make a difference. For questions or suggestions, fill out our contact form. Race day schedules will be emailed the week before the event.
Events
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
74°
Typical Low
42°
Chance of Rain
19%
Based on US Climate Normals data from Northglenn, 5 mi from the venue.
About Westminster, CO
Population
115,546
as of 2023
City Elevation
5,551 ft
Nearest Airport
DEN
Denver International Airport · 19 mi
Time Zone
Mountain Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Not So Flatt Breast Cancer Awareness Run/Walk – 5K & 10K in Denver, CO, put it on the calendar, and turn “someday” into a start date.
340
Days to train
- Race
- Not So Flatt Breast Cancer Awareness Run/Walk – 5K & 10K in Denver, CO
- Date
- October 2, 2027
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About This Sport
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Running
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Frequently Asked Questions
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Not So Flatt Breast Cancer Awareness Run/Walk – 5K & 10K in Denver, CO
Oct 2, 2027