Every Tuesday evening in the fall, a few hundred Anchorage runners gather at a park somewhere in the city, having no idea where they are about to go. The course is a secret. It stays a secret until just before the start, when Parks and Recreation staff finally reveal the route they have spent the week setting. Then everyone runs it anyway.
That is the central premise of the Bonny Sosa Tuesday Night Races, a fall institution in Anchorage that has been running, by the Municipality's own count, for 58 years. The 2026 season opened September 15 at Kincaid Park and continues through October 27, with the next installment set for Tuesday, October 13 at the Kincaid Nordic Stadium, running from 6:30 to 9 p.m.
The secrecy is not a gimmick bolted on for novelty. It is baked into the structure. Each week, three separate courses are laid out at a predetermined location around town, and the routes are known only to certain Parks and Recreation staff and what the Municipality calls its "volunteer course-setting wizards." The Munchkin and Farm Leagues usually stick to heavily used trails. The Lightning League does not. The Municipality's own description of the Lightning courses is blunt: they "have been known to test your resolve."
The three leagues are the series' way of accommodating everyone from toddlers to hardened trail runners in the same event. The Munchkin League, for families, kids, and kids at heart, covers 1 to 3 kilometers. The Farm League, for mid-level recreational runners and competitors, runs 3 to 10 kilometers. The Lightning League, for "adventurous souls," spans 4 to 12 kilometers over what the event listing describes as "tough and gritty" terrain. The source listing promises "hills, spills, thrills and chills."
What the series is not is fair-weather. The Municipality notes that these races are "rarely canceled, even when faced with rain, snow, sleet, hail, or wind." In an Anchorage October, that is a meaningful commitment. Snow is a real possibility at the October 13 event, and the races go on regardless.
Dogs, however, are not welcome. The FAQ is unambiguous: "Due to safety concerns and race size, dogs are not permitted to participate. Please leave your pet at home. Participants who bring their dogs will be asked to leave them in their vehicles."
Entry is deliberately cheap. Adult single-race registration is $12 online, or $15 for on-site registration. Youth single-race registration is $2. Season passes are available through the Municipality's registration portal. There is no reserved seating, no qualifying standard, and no barrier beyond showing up and paying a few dollars.
The finish line has its own small ritual. Runners pass through a timed chute where staff punch times onto cards corresponding to each participant. Those who would rather not have a time recorded can use an untimed chute and still take a card, which enters them in the prize drawing and helps the organizers track attendance. Parents carrying a child or pushing a baby jogger are asked to tell the timer how many people are crossing if the children cannot be clearly seen. Cards turned in without a legible, complete name may still appear in results but will not earn series points or count toward a top-finisher award at the season-ending Awards Banquet. Sponsor Skinny Raven has donated two pairs of running shoes for an end-of-season drawing among season pass holders who register by September 19.
The name on the series belongs to a real person, and the story of how it got there is the reason the event carries more weight than a typical fun run. Bonny Sosa was born in Madisonville, Kentucky, in 1957 and was brought to Alaska by her parents nine months later. She graduated from Dimond High School in 1975, attended Murray State University and the University of Hawaii, and graduated from the School of Cosmology in San Francisco in 1979. She worked as a partner and office manager at International Steel from 1981 to 1984, opened the BG Travel Agency from 1987 to 1989, and then spent thirteen years at the Anchorage Convention and Visitors Bureau, traveling the world promoting Alaska. At the time of her death she ran her own business, the Can Do Company, and had become a registered yoga instructor.
Her parents, Charlie and Carolyn Brown, recalled that "Bonny looked for the good in people and was interested in helping people from the time she was a little girl." She collected awards she never sought: a "Wild" Recognition Award for Exceptional Service from the Anchorage Convention and Visitors Bureau in 1990, a Landmark Illumination Award in 1996 for helping initiate the Landmark Illumination Program, a Mayor's Award for Public Service that same year for her work on the Spenard Road Beautification Committee, and a Star Award from the visitors bureau in 2000.
In 2003, Bonny Sosa Young and her husband Sam Young founded Healthy Futures, an organization built around a simple goal: to empower Alaska's youth to build the habit of daily physical activity. Healthy Futures is the signature program of the Alaska Sports Hall of Fame, a 501(c)(3) nonprofit, and it now runs an activity log challenge that draws more than 10,000 Alaskan youth from over 100 elementary schools statewide, along with event support for more than 100 community recreational events.
Bonny Sosa died in 2008. That year, the Tuesday Night Races were dedicated to her, and her name became part of the series. The Municipality credits her with passing on "her can-do attitude, positive energy, and passion for life" to the event, describing her as "a frontrunner for healthy living in the Anchorage community" and "a friend to all." Her namesake race is now, by the Municipality's account, one of the most popular races in Alaska, with thousands of Anchorage residents and visitors turning out at parks and trails across the city each week of the fall season.
That is the odd arithmetic of the Tuesday Night Races. It is a 58-year-old institution that most participants experience as an after-work lark: pay twelve dollars, show up at a park, find out where you are running when everyone else does, and finish before dark. The course changes every week. The secrecy is the point. And the name on the banner belongs to a woman who spent her life trying to get Alaskans, especially young ones, to move.
On October 13, the wizards will set three courses at Kincaid Nordic Stadium. Nobody running them will know the route until it is time to go. Registration is open online, and on-site registration is available for those who decide at the last minute. Volunteers are also needed; the Municipality directs interested parties to its special events coordinator. The series continues through October 27.