Homepage Impact Marathon Series

The World's Most Powerful Races

Is running bad for your knees? Research shows impact on marathoners

Jenks Half Marathon - Tulsa Runner, Tulsa Running Store

Guatemala Impact Marathon 2024 - Running in Antigua Guatemala

images.squarespace-cdn.com/content/v1/53456cfbe4b0

Cowtown Marathon 2024 race results, race map, road closures

Impact Marathon Series

Impact Marathon Series

Impact Marathons

Results: Who won the Boston Marathon

RACE RESULTS - Bank of America Chicago Marathon

Race Results & Awards - Chicago Half Marathon and 5K