Paris-Brest-Paris (PBP) 1200km

The next Paris-Brest-Paris (PBP) wil take place between 18th and 22nd August 2019. This 1200km randoneé can trace its roots back to 1891, almost as old as the bicycle itself. It takes place every four years and has the largest number of riders of any audax event.

http://www.aukweb.net/aboutauk/history/pbphistory/