U.S. Amateur Champion DeChambeau on a Higher Plane

MELBOURNE — If lacking in knowledge of advanced biomechanics, a degree in physics might help when chatting with American amateur Bryson DeChambeau, who believes his successful use of a single-length set of clubs might ultimately change the way players approach the game.

The 22-year-old casually drops complex equations into the usual golf jargon when discussing his swing, a finely calculated invention inspired by "The Golfing Machine", the Homer Kelley manual heavy on science in decoding one of the game's most elusive and confounding skills.

Years of slavish experimentation has produced a bag of identical length clubs with large grips that allow him to produce a consistent plane on his swing,…