Uk Running Events 2024 Usa. Hour 54 october 21, 2024 backyard ultra backyard ultra is a form of ultramarathon race where competitors must consecutively run the distance of 6706 meters (4.167 miles) in less than one hour. Among 18000 running events organized in north america, almost all of them are held in usa.

Running calendar uk lists live running races, fun runs and walks, triathlons, multisport and adventure race events throughout united kingdom. Among 18000 running events organized in north america, almost all of them are held in usa.