Trail Sisters Women's Half Marathon & 10k
- Date
- September 12, 2026
- Location
- 801 Front Loop, Buena Vista, CO
- Distance
- Trail Sisters Women's Half Marathon · Trail Sisters Women's 10k
From the Organizer
A Half Marathon and 10K that twist and turn through sage brush and ponderosa pines, all while providing stunning views of the prestige Collegiate Peaks. Located in the Rocky Mountains along the roaring Arkansas River.
Come Join Trail Sisters best weekend of the year in Buena Vista, Colorado. Travel with your Trail Sisters Local Group OR SOLO and you'll arrive to a welcoming community of supportive women who will ensure your day is filled with smiles, high-fives and the support you need to get to the finish line!
Events
Weather
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
75°
Typical Low
41°
Chance of Rain
29%
Based on US Climate Normals data from Buena Vista 2s, 1 mi from the venue.
Host City
About Buena Vista, CO
Nearest Airport
ASE
Aspen-Pitkin County Airport (Sardy Field) · 47 mi
Major Hub
COS
City of Colorado Springs Municipal Airport · 78 mi
Time Zone
Mountain Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Trail Sisters Women's Half Marathon & 10k, put it on the calendar, and turn “someday” into a start date.
96
Days to train
- Race
- Trail Sisters Women's Half Marathon & 10k
- Date
- September 12, 2026
- Location
- 801 Front Loop, Buena Vista, CO
Coming Up
More Running races near Buena Vista, CO
Independence Day Freedom 5K
5K
Less than a mile away
Women's Specific High Trails Trail Running Retreat
Less than a mile away
TransRockies Run Charity Bibs
Less than a mile away
14er Challenge
Less than a mile away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
The half marathon is the distance where you find out what you're actually made of. Long enough to demand real preparation. Short enough that it doesn't consume your life to train for it. Most people who run their first half describe it as the race that changed their relationship with what they're capable of. Once you cross this finish line, the bar moves. That's not a warning — that's the point.
Race day energy varies by event size, but the finish line feeling is the same regardless. Big races keep the noise going the whole way. Smaller races give you stretches where it's just you and the miles — and that solitude becomes its own kind of fuel.
The half marathon rewards people who show up for the boring training miles.
How long to train: 10–14 weeks. If you're already running consistently, 10 weeks of structured buildup is enough. If you're building from a casual base, give yourself 14.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the Trail Sisters Women's Half Marathon & 10k?
- Trail Sisters Women's Half Marathon & 10k is a running race held in Buena Vista, Colorado on September 12, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Trail Sisters Women's Half Marathon & 10k?
- Saturday, September 12, 2026 in Buena Vista, Colorado at 801 Front Loop, Buena Vista, CO. Check the event page for exact start times and wave schedules.
- How do I register for the Trail Sisters Women's Half Marathon & 10k?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Trail Sisters Women's Half Marathon & 10k
Sep 12, 2026