2026 Southwest Series - Day 2 (CO)

Get ready for an unforgettable experience at the 2026 Southwest Series - Day 2 in picturesque Durango, Colorado, on November 9th. This event, part of the renowned Mainly Marathons series, offers a welcoming atmosphere for both seasoned runners and those looking to complete their first 5K or 10K. The course is designed for enjoyment, featuring a fast and flat terrain along the scenic Riverwalk Trail, with smooth paved paths and occasional short sections of gravel. Runners will be treated to tree-shaded routes and views of the Animas River, creating a refreshing backdrop for your race. Typical race day conditions in early November are ideal for running, with highs around 55°F, lows near 23°F, and a minimal 4% chance of precipitation.

What truly sets the Southwest Series apart is its unique focus on community and support. There are no time limits, making it perfect for walkers and runners of all paces to achieve their goals without pressure. Participants rave about the "World's Best Running Series" reputation, largely due to the extraordinary "giant aid station" available on the multi-loop course. This isn't just a basic water stop; it's a full-service experience featuring everything from fruit and sandwiches to hot coffee, all supported by the series' very own mobile kitchen, the "Loony Lunchbox."

Starting at the Fairgrounds on 2500 Main Avenue, this event promises not only a rewarding run but also a celebratory finish. All participants receive a shirt and a series of impressive medals, including a traditional Starter Medal, a Year Tab, and a State Medal shaped like Colorado, which connect to form a unique "string of bling." Join the "Loony Running Family" for an encouraging and memorable day where every finisher is celebrated with delicious post-race food and a strong sense of camaraderie.