What is the Radnor Run?

The Radnor Run is a 5 Mile timed running race, a 2-Mile Trail Walk, and a ½ Mile Kids Fun Run. This is a fundraising event, to support the American Lung Association’s life-saving research, education and advocacy work. The American Lung Association funds ground-breaking lung disease research, like this research at Fox Chase Cancer Center. The Lung Association also provides important programs and education. Some of these include asthma education for children and adults, clean air in schools, and smoking prevention/cessation for teens and adults.

  • 5-Mile Certified Run: Sanctioned by USA Track & Field, using certified course PA110135WB, the 44th Annual Radnor Run starts and finishes at the Radnor Township Building. Whether you are an experienced or occasional runner, you will enjoy this challenging 5-mile certified course through scenic Radnor Township.
  • 2-Mile Trail Walk: This is an untimed walk for adults and youth of all ages. This year we are excited to announce that the Walk will merge onto the Radnor Trail, stroller & wheelchair accessible. Bring the family! Please note: NO runners on the 2-Mile Trail Walk course.
  • 1/2 Mile Kids Fun Run: For kids 12 & Under. Medals will be awarded to the fastest boy and girl finisher and the first 100 kids to cross the finish line. All kids who register for the Kids Fun Run are invited to participate in the 2-Mile Trail Walk with their family for no additional fee.
  • Team Challenge: Corporations, organizations, schools and clubs are invited to enter groups in the Team Challenge. Minimum of 3 runners on a team. The three fastest times are combined and used to determine the team time.
  • Race Results: 5 mile runners will be professionally timed by Run the Day Race Management, using ChronoTrack disposable bib chips.
  • Bag Check: A bag check will be available on the field for all participants. Sponsored by Good Shepherd Penn Partners.


Sunday, October 31, 2021
Race Day Registration begins at 7:00 am. 5-Mile Race begins at 8:30 am (EST)


Race START/FINISH is located at the Radnor Township Building & Grounds, 301 Iven Avenue, Radnor, PA 19087.

Thank You to Our Local Sponsors

Temple Health
IM Health
Brandywine Realty Trust Penn Medicine Radnor Township
Independance Blue Cross Good Shepherd Penn Partners Genentech Apt Managment
Veracyte Main Line Health Moore Jones