Jackson Koivun wasn't the biggest or the fastest swinger on the range. He became the number one amateur golfer in the world anyway, then beat Scottie Scheffler in only his third start as a pro. His answer for why comes down to one word.

"Your mentality isn't neutral. It's either a weapon or a weakness."

This episode breaks down how to train your mentality the same way you'd train a swing.

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