RMRR September 5k/10k 2026 — Thornton, CO
RMRR September 5K/10K is a running event held in Thornton, Colorado on September 13, 2026, offering both 5K and 10K distances. The race starts at 8:00 AM at 9830 Riverdale Road. Entry fees range from $10 to $15, making it an affordable option for runners looking to compete locally. Whether you're targeting a longer 10K effort or a shorter 5K effort, this event provides straightforward racing in the Denver metro area. Consider staying nearby in Thornton for easy morning logistics and post-race recovery time.
Course & Travel Notes
On race day, sunrise occurs at 6:39 AM, giving you nearly 1.5 hours of daylight before the 8:00 AM start. September weather in Thornton typically features highs around 82°F and lows near 49°F, with rain on about 19% of days, so come prepared for variable conditions. The venue sits at 5,095 feet elevation, which may affect your pacing if you're not acclimated to altitude. Rocky Mountain Metropolitan Airport (BJC) is conveniently located just 10 miles from the race site.
Hotels Near This Race
Find accommodation close to the start line in Thornton, CO. Sorted by distance from the race venue. Book early — race weekend hotels fill fast.
RMRR September 5k/10k 2026 — Thornton, CO
Race day is approaching. Hotels fill up fast.
Race weekend dates pre-loaded on Booking.com. RaceHotelFinder may earn a commission at no extra cost to you.
Race Travel Insurance
Don't forget travel insurance for September 13.
You've trained for months and booked a trip to Thornton, CO. A pre-race injury, a delayed flight, or a family emergency can derail the whole thing. Travel insurance can help cover your race entry fee, hotel, and flights if you can't make it, and may cover medical costs if something goes wrong on the course. Plans typically only run 5-7% of your total trip cost — and running events are covered under standard plans with no additional coverage needed.
- Trip cancellation up to 100% of prepaid costs
- Running events covered under standard plans — no add-ons needed
- Trip interruption up to 150% of non-refundable costs
- Emergency medical up to $250,000
- Cancel For Any Reason add-on available
- 24/7 real-time support
Affiliate links — we may earn a commission at no cost to you. Coverage terms vary by state and plan. Review policy details before purchase.
Frequently Asked Questions
When is RMRR September 5k/10k 2026 — Thornton, CO?
RMRR September 5k/10k 2026 — Thornton, CO takes place on September 13, 2026. The race is held in Thornton, Colorado.
Where is RMRR September 5k/10k 2026 — Thornton, CO held?
RMRR September 5k/10k 2026 — Thornton, CO is held at 88th and Colorado in Thornton, Colorado.
Where can I find hotels near RMRR September 5k/10k 2026 — Thornton, CO?
RaceHotelFinder shows hotels sorted by distance from the race venue in Thornton. Use the map or list view on this page to compare options and book race weekend accommodation.