According to Official Guinness Records,
The record for the greatest height climbed in one hour on a Versaclimber while carrying an 18 kg (40 lb) pack is 2,449.37 m (8,036 ft) and was set by Kelvin Turner (UK) in Bude, Cornwall, UK, on the 25 August 2006.
For a complete list of 2006 records, please visit 2006 Guinness Records in United Kingdom.