“We’ve always spoken about the principle of association since he was young and playing in bigger stage events,” McCormick said. This means paying attention to the good shots of others to increase the likelihood you’ll hit a good shot. “We’ve also worked on building an ‘imagery reel’ of his past successes to draw back on to amplify his confidence.” Again, the idea is the act of remembering a good shot can actually trigger your motor skills to fire the same way.

— Spieth's instructor since age 12 knew he had something special by Golf Digest