Runners of all speeds and abilities are welcome to test themselves against a course that runs through the heart of the beautiful and historic Tyler Arboretum. The course is fast and challenging, with many elevation changes and four shallow creek crossings. This race was named one of the Philadelphia area’s best races by Philadelphia Magazine’s Be Well Philly. Presented by Delco RRC, the race is a USATF Mid-Atlantic Off Road GP event. There is a limit of 400 runners. It has sold out the last five years, so don’t delay!