Lace up for an unforgettable journey at the Center of the Nation Series - Day 4, arriving in Belle Fourche, South Dakota, on October 1, 2026. This unique event, part of the acclaimed World's Best Marathon & Half Series organized by Mainly Marathons, offers a full marathon (26.2M) and a half marathon (13.1M) on a course celebrated for being fast and flat. Runners can expect a smooth asphalt road with little shade, providing an ideal setting for personal bests amidst the vast and inspiring Dakota landscape. Typical race day conditions in early October offer pleasant highs around 69°F and lows of 41°F, with only a 7% chance of precipitation, ensuring comfortable running weather.

What truly sets this race apart is its location at the Geographic Center of the Nation. While the precise geodetic center lies a short distance north on private land, Belle Fourche proudly hosts a stunning 21-foot compass rose-shaped monument crafted from South Dakota granite, encircled by an "Avenue of Flags" representing all 50 states. This iconic landmark provides a memorable backdrop, contributing to the race's distinctive charm and photo opportunities. The Center of the Nation Series is renowned for its "no time limits" policy, making it exceptionally welcoming for runners and walkers of all paces, including those pushing strollers.

Runners consistently praise the "great race production" and the supportive, often described as "loony," community atmosphere. Aid stations are generously stocked with a variety of options, from fruit and jelly beans to sandwiches and hot coffee, further supported by the "Loony Lunchbox" mobile restaurant. Every finisher receives an award-winning medal, and those completing distances longer than a half marathon earn a custom metal-stamped nameplate. Special recognition is also given to first-time marathon or half marathon finishers, and a unique "caboose award" celebrates the final finisher, embodying the series' commitment to supporting every participant across the finish line.