The Endure 12-Hour is a one-of-a-kind 12-Hour timed event designed by YOU… and tiny colorful balls. Each runner will pull colored balls from a bucket, which determines the loop they’ll next run. This continues for up to 12 hours; the runner’s result is the miles they ran within the allotted time. You are not required to run for all 12 hours, as your final result is the number of miles you ran within the time you participate!
The 10k, Half Marathon, and Marathon are great ways to enjoy Mueller State Park’s natural beauty in a supportive, “no-pressure” environment. All three distances feature a generous 11-hour cutoff.
All courses feature double-track and single-track trails with ZERO pavement, and an aid station you’ll want to hang around at for hours (we’re that much fun)!
Formerly Known As The Tommyknocker 12-Hour & Mine Shaft Half
May 15, 2027
Distance — 12-Hour (Endure- LRS)
Type — Running
08:00
$130.00
May 15, 2027
Distance — 12-Hour (Tiny Balls)
Type — Running
08:00
$130.00
May 15, 2027
Distance — 26.53 Miles
Type — Running
08:00
$100.00
May 15, 2027
Distance — 6.81 Miles
Type — Running
09:00
$60.00
May 15, 2027
Distance — 14.12 Miles
Type — Running
09:00
$80.00
These values represent the 3-year monthly averages for May in Divide.
Learn more about the host city, Divide.
Divide is an unincorporated town, a post office, and a census-designated place (CDP) located in and governed by Teller County, Colorado, United States. The CDP is a part of the Colorado Springs, CO Metropolitan Statistical Area. The Divide post office has the ZIP Code 80814. At the United States Census 2020, the population of the Divide CDP was 143.
Read more launchOfficial finishing times from previous editions of Endure Trail Runs.
| Place | Name | Time | |
|---|---|---|---|
| 🥇 | Matthew Warriner | — | |
| 🥇 | Wyatt Lowdermilk | — | |
| 🥇 | Erika Erickson | — | |
| 🥈 | Joseph Rampulla | — | |
| 🥈 | Alissa Bleem | — | |
| 🥈 | Bo Shelby | — | |
| 🥉 | Miguel Perez | — | |
| 🥉 | Courtney Seward | — | |
| 🥉 | Patrick Donegan | — | |
| 4 | Cj Vander Linden | — | |
| 4 | Jamin Aragon | — | |
| 4 | Lj Stephens | — | |
| 5 | Mike Hersh | — | |
| 5 | Drew Ralston | — | |
| 6 | Ryan Schrock | — | |
| 6 | Stephanie Barnes | — | |
| 7 | Jason Cappiello | — | |
| 7 | Drew Ross | — | |
| 8 | Chrissy Esposito | — | |
| 8 | Russell Ditsworth | — | |
| 9 | Natalia Ligenza | — | |
| 9 | Tim Dougherty | — | |
| 10 | Avelino Reyes | — | |
| 10 | Risa VanAntwerp | — | |
| 11 | Tammy Bishop | — | |
| 11 | Beatrice Rosen | — | |
| 12 | James Henkelman | — | |
| 12 | Linda Haire | — | |
| 13 | Bryan Perrott | — | |
| 13 | Pete Sheldon | — | |
| 14 | Bryant Young | — | |
| 14 | Katherine Hauska | — | |
| 15 | Bryan Bishop | — | |
| 15 | David Murphy | — | |
| 16 | Craig Hildebrand | — | |
| 16 | Gavin Brown | — | |
| 17 | Will Yeck | — | |
| 17 | Emily Abramowicz | — | |
| 18 | Zev Keppleman | — | |
| 18 | Miranda Williamson | — | |
| 19 | Barry Ogden | — | |
| 19 | Cynthia Disanto | — | |
| 20 | Tarah Fron | — | |
| 20 | Cody Wagner | — | |
| 21 | Cabe Waldrop | — | |
| 21 | Anna Rienstra | — | |
| 22 | Christina Barkley | — | |
| 22 | Ivan Kriakov | — | |
| 23 | Joseph Braley | — | |
| 23 | Sunray Spinks | — | |
| 24 | Matt Anderson | — | |
| 24 | Jennifer Bieber | — | |
| 25 | Travis Moryl | — | |
| 25 | Paul Ratterman | — | |
| 26 | Kara Schmitz | — | |
| 26 | Zachary Marks | — | |
| 27 | Dan Shaw | — | |
| 27 | Danuta Piatek | — | |
| 28 | Kelly O'Neill | — | |
| 28 | Michael Bepristis | — | |
| 29 | Chris Spohn | — | |
| 29 | Matthew Schultz | — | |
| 30 | James Swenson | — | |
| 30 | Tannor Randle | — | |
| 31 | Janadel Harris | — | |
| 31 | Kristy Dittman | — | |
| 32 | Nathaniel Todd | — | |
| 32 | April Garland | — | |
| 33 | Jason Weber | — | |
| 33 | Vanessa Wolfe | — | |
| 34 | Stacy Bocskor | — | |
| 34 | Misty Cassidy | — | |
| 35 | LaMar Jost | — | |
| 35 | Kyra Kerler | — | |
| 36 | Christina Lowell | — | |
| 36 | Jes Schultz | — | |
| 37 | Donovan Garcia | — | |
| 37 | Huberth Marak | — | |
| 38 | Josh Helle | — | |
| 38 | Jarrod Myers | — | |
| 39 | John Perez | — | |
| 39 | Ryan Hopp | — | |
| 40 | Anita Ortiz | — | |
| 40 | Michael Medvig | — | |
| 41 | April Kenyon | — | |
| 41 | Shane Bower | — | |
| 42 | Jennifer Flannery | — | |
| 42 | Kent Hinsey | — | |
| 43 | Katie Christesen | — | |
| 43 | Sara Williams | — | |
| 44 | Terri Abbott | — | |
| 44 | Paula Pearson | — | |
| 45 | Julie White | — | |
| 45 | Dean Hess | — | |
| 46 | Tracy Peronard | — | |
| 46 | Charles Hall | — | |
| 47 | Brian Bohrer | — | |
| 47 | August Labuntog | — | |
| 48 | Anonymous Anonymous | — | |
| 48 | Deanna Jordan | — | |
| 49 | Stephanie Przybyla | — | |
| 49 | Catherine Green | — | |
| 50 | Kay Dragon | — | |
| 50 | Jamie Tully | — |
Read what other athletes have to say about their experience at the Endure Trail Runs.
Be the first to share your experience with the community!
Explore other exciting events happening in this same region.
Hand-picked events we think you’ll love.
Aug 01, 2026
Beat the heat and treat yourself at the Popsicle 5K/10K/Half Marathon—a sweet celebration of summer miles and frozen re…
Read more
Aug 01, 2026
Whether you’re a seasoned runner or just love to walk and take in the scenery, SKECHERS Wicked Wine Run is for you! Eac…
Read more
Jul 29, 2026
Tom’s Baby Turnaround is Race #4 of the Summit Trail Running Series, taking place on Tuesday, July 29, 2026, starting a…
Read more
Aug 12, 2026
The Carter Park Scurry is Race #5 of the Summit Trail Running Series, taking place on Tuesday, August 12, 2026, startin…
Read more
