Southwest Series - Day 2 - CO

Get ready to experience the "World's Best Running Series" in the charming mountain town of Durango, Colorado, with the Southwest Series - Day 2 - CO on November 9, 2026. Offering marathon (26.2M), half marathon (13.1M), and 5K distances, this event, part of the renowned Mainly Marathons series, promises an unforgettable and supportive race day. The course takes runners on a multi-loop journey along a smooth paved path with short sections of gravel trail, traversing the scenic Riverwalk trail. Expect tree-shaded paths and picturesque views of the Animas River as you navigate the moderately hilly terrain, with approximately 76 feet of elevation gain per loop for the longer distances.

What truly sets this race apart is the vibrant "Loony Running Family" atmosphere and a runner-centric approach. There are no time limits, welcoming walkers and runners of all paces to comfortably complete their chosen distance. A highlight for many is the "giant aid station," operating as a mobile kitchen known as the "Loony Lunchbox." This isn't your average aid station; it's packed with an extensive array of food and drink, from fruit and jelly beans to sandwiches and hot coffee, ensuring you're well-fueled throughout your effort. All participants are rewarded with unique, connecting medals, including a Starter Medal, Year Tab, and a state-shaped medal, with a bonus Series Finisher Medal for those completing the entire series.

Starting at Santa Rita Park, near the Fairgrounds on Riverwalk Trail, you'll be immersed in the natural beauty of Durango. Typical race day conditions in early November feature crisp air, with highs around 55°F and lows around 23°F, and only a 4% chance of precipitation, creating ideal running weather. Join the Southwest Series - Day 2 - CO for an event where community, generous support, and stunning scenery combine for a truly exceptional running experience.