How many miles is the running event held every Saturday morning in fifteen countries across five continents?
Parkrun Parkrun (styled as parkrun) is the name given to a collection of five-kilometre running events that take place every Saturday morning in fifteen countries across five continents. Each Parkrun territory has its own sponsors. Events are run by volunteers, and participation is free of charge.
IAU 100 km World Championships The IAU 100 km World Championships have been held annually from 1987 to 2012, at different locations, and is organized by the International Association of Ultrarunners (IAU). Due to lack of sponsorship, the 2013 event, planned for Jeju Island, South Korea, was cancelled and the 2014 event, originally due to be held at Daugavpils, Latvia, was held instead in Doha, Qatar.