John “The Vermin” Sherman became a cult figure in climbing for his bold style, often tackling problems in flip-flops with a beer in hand. In the early 1990s, he helped reshape the sport by creating a new way to grade bouldering difficulty, at a time when climbers relied on older systems like the Yosemite Decimal System or John Gill’s B-scale.
Sherman introduced the “V” scale, named after his nickname, starting at V0 for easy problems and originally topping out at V9. After his guidebook was published, climbers began racing to claim harder first ascents, leading to grades like V10 and far beyond. Today, the scale stretches to V17 and V18, reflecting how much the sport has evolved.
Outside of climbing, Sherman is also known for his sense of humor and oddball fame. He once won an Alferd E. Packer lookalike contest, referencing the infamous 19th-century figure whose survival story and criminal conviction became part of American folklore.
The creepiest photos ever taken: bit.ly/3MhKiB3