The Bonny Sosa Tuesday Night Race Series offers a unique and thrilling start to your fall running season in Anchorage, Alaska, on September 8, 2026. This beloved series, a multi-generational tradition for 58 years, is renowned for its ever-changing, secret trail courses that are only unveiled just before the 6:30 p.m. start each week. Runners can challenge themselves across two distinct distances: a spirited 3K, perfect for families and recreational participants, and a more demanding 12K. The longer "Lightning League" courses are legendary among local runners, known for navigating narrow game trails, crossing streams, and sometimes even slogging through swamps, promising "hills, spills, thrills and chills" through Anchorage's scenic wilderness.

Prepare for an authentic Alaskan trail experience where the terrain varies and surprises await. While the shorter "Munchkin" and "Farm League" races generally stick to well-used trails, the longer distances delve into more rugged, unpaved territory. Typical race day conditions in early September usually feature comfortable highs around 59°F and lows around 45°F, with a minimal 14% chance of precipitation, creating ideal running weather for tackling the unexpected. The Bonny Sosa Tuesday Night Race Series embodies the spirit of community and healthy living, dedicated since 2008 to local fitness advocate Bonny Sosa, and is celebrated for rarely being canceled, regardless of the elements. It’s more than just a race; it's an adventure to connect with trails and fellow runners, fostering an atmosphere of positive energy and a shared passion for the outdoors.