- Brian Ecker
- 10,694.82m metre(s)
- United States (Bow)
The greatest vertical ascent on bicycle in 12 hours (male) is 10,694.82 m (35,088 ft), and was achieved by Brian Ecker (USA), in Bow, Washington, USA, on 20 April 2019.
Brian completed 51 laps of a two mile course with 688 vertical feet of elevation gain each lap.