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.
Half marathon world record progression The world record in the half marathon has been officially recognised since 1 January 2004 by the International Association of Athletics Federations (IAAF), the international governing body for the sport of athletics. A total of five men's world records and six women's world records have been officially ratified since that date. The IAAF officially recognised the fastest times prior to that date as a "world best" from 1 January 2003 onwards. Before that date, the IAAF did not recognise any road running world records, though the concept of a world record was recognised by other organisations, such as the Association of Road Racing Statisticians (ARRS).