September 10, 2026
At 8:30 a.m. on October 26, 2025, a field expected to top 750 runners and walkers set off from the Radnor Township Building for a race that had opened every October in this part of the Main Line since 1977. They ran the same backroads through Wayne, walked the same two miles of the Radnor Trail, and raised money for the American Lung Association the way this community had for nearly five decades. It was also the last one. There will be no 49th Radnor Run this fall, and there won't be one next fall either, at least not yet.
If you assume that means the neighborhood finally stopped showing up, the numbers say otherwise. Over the last 20 years alone, the race raised roughly $1.5 million for lung cancer research. Across 48 years it covered a cumulative 240 miles of Radnor Township roads. Radnor Township Parks and Recreation Director Tammy Cohen has described the shutdown as a decision made somewhere other than here.
Cohen has said plainly that the end of the Radnor Run came down to how the American Lung Association allocates its staff and resources across its national event calendar, not a lack of local enthusiasm. The race was organized in partnership with Penn Medicine and run through Radnor Township, but the registration systems, the fundraising infrastructure, and the staff hours all belonged to a national health charity with hundreds of events competing for the same budget line. When that organization's math changed, a Main Line institution that predates most of the streets it ran through went with it.
That distinction matters for anyone trying to read the neighborhood's calendar correctly this fall. A race can have deep local roots, a full field, and a genuine charitable track record, and still disappear because the entity holding the checkbook operates somewhere else entirely.
The township isn't waiting around for the Lung Association to reconsider. Cohen has named the organizations it's leaning on to fill the gap: the Radnor Township Library's Elves for the Shelves 5K and Fun Run, and Hill Top Prep's Annual Thrill on the Hill 5K.
Neither race will match the Radnor Run's scale anytime soon. But both share something the Radnor Run didn't: the organization behind each race has no other address. The library's entire operation is Radnor Township. Hill Top Prep's campus, staff, and budget are here too. Neither can be deprioritized by a regional office weighing this event against three hundred others, because there is no regional office. There's just the library and the school, deciding for themselves whether their own race happens next year.
For contrast, look at what didn't change. The Wayne Business Association's Radnor Fall Festival runs its 35th edition on September 20, 2026, on the same route it has used for years, the largest event the association hosts annually. Nobody at the Wayne Business Association had to explain a resource allocation decision to residents this year, because the organization running the festival is made up of the same Lancaster Avenue merchants who benefit from it. The incentive to keep it going lives on the same three or four blocks the festival occupies every third Sunday in September.
That's the pattern worth noticing before you assume every long-running Main Line tradition carries the same risk. The Radnor Run and the Radnor Fall Festival are both decades-old, both beloved, both organized with township cooperation. One folded when a national partner's internal math shifted. The other has never had that exposure, because its funder and its beneficiary are the same local businesses walking the route.
Whatever happens to the race, the ground it ran on isn't going anywhere. The Radnor Trail marks its 20th year of public use this year, having officially opened on April 16, 2006, after Radnor voters approved converting an abandoned rail corridor into a multipurpose path back in a 1995 referendum. The corridor itself dates to 1907, when it carried the Philadelphia & Western Railway's Strafford Branch trolleys until the line was abandoned in 1956. PennDOT held the land for two decades before granting Radnor use of it in 1976, and it took nearly $2 million and two years of construction before the 2.4-mile trail opened to the public.
That history matters because the trail has now outlasted the very race that made it famous locally. Runners, walkers, cyclists, and dog owners use the Radnor Trail every day of the year, independent of any single organized event. The infrastructure is permanent even when the programming built on top of it isn't.
A few minutes from the Radnor Trail sits a different kind of institution entirely. Stoneleigh, the 42-acre former Haas family estate at 1829 County Line Road in Villanova, was donated to the nonprofit Natural Lands in 2016 and has been free and open to the public ever since. Unlike a single flagship race, Stoneleigh's fall calendar doesn't hinge on one big Sunday. This September alone, the garden has scheduled volunteer gardening sessions on September 8, September 10, and September 15, alongside its recurring guided walks and seasonal programming built directly into how Natural Lands runs the property year-round.
That's the structural difference. Stoneleigh's fall programming isn't a fundraiser that a distant office can cancel when the numbers stop working. It's the garden doing what it always does, on a schedule set by the people who maintain it every week, not by an outside partner weighing it against a national portfolio.
Villanova's calendar isn't shrinking this October. It's reorganizing around who actually owns each tradition. The events with staying power are the ones run by organizations whose entire operation sits inside Radnor Township, whether that's a library, a private school, a merchants' association, or a garden's own nonprofit. The events at risk are the ones that depend on an outside partner's budget, however well-intentioned that partner has been for however many decades.
If you're the kind of resident who used to circle the last Sunday in October on the calendar, the honest answer is that Sunday now belongs to the library's 5K, or Hill Top Prep's race, or a quiet walk on a trail that's been here since before most of the neighborhood's houses were built. None of them will replace what the Radnor Run was for 48 years. But they'll likely still be here in ten years, precisely because nobody but Radnor Township has to decide to keep them going.
If you're weighing what a long-term stake in this part of the Main Line actually looks like, from the traditions that hold to the ones worth watching, Arielle Roemer has spent her career paying attention to exactly this kind of detail. Schedule a consultation when you're ready to talk about what makes a neighborhood like Villanova worth settling into for the long run.
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