John Gill

John Gill was an American mathematician and climber, known as one of the pioneers of bouldering.

John Gill was born on February 26, 1937.

John Gill is most known for his contributions to the development of bouldering as a climbing discipline. He popularized the use of gymnastic techniques in climbing and established many first ascents of difficult boulder problems.

No, John Gill did not compete in climbing competitions. He focused primarily on bouldering and did not participate in formal climbing competitions during his time.

The V-scale rating system is a grading system used in bouldering to rate the difficulty of climbing problems. It was introduced in the late 1990s and is often used in North America. The ratings start from V0, which represents the easiest problems, and increase in difficulty up to V17.