Wawa's annual Black Fly Run has been cancelled.
A post on the event's Facebook page explains the organizing committee made the decision "with a heavy heart", thanking everyone who has supported the race over the years.
This year's 20th event had been touted as the final - it's unclear if this means the run's over or a makeup will simply be held another time.
Online registration opened in January, and details about fee refunds are expected "shortly".