Greatest vertical ascent on bicycle in 12 hours (male)

Greatest vertical ascent on bicycle in 12 hours (male)
Who
John Thomas
What
9,847.12 metre(s)
Where
France (Montchavin les Coches)
When

The greatest vertical ascent on a bicycle in 12 hours (male) is 9,847.12 meters (32,306.76 ft) and was achieved by John Thomas (France), in Montchavin les Coches, Savoie, France, on 11 September 2016.

John has been a keen amateur cyclist for the last 11 years, and he regularly competes in races across France and Italy.