Billy Horschel was already employing the belly putter years after the rules were changed to forbid anchored putting.

However, with one stipulation: prevent the use of arm locks when aiding him in swinging.

What is Billy Horschel wearing on his arm?

Billy Horschel has been spotted on several occasions donning his famous armband. Billy actually wears a prominent fitness tracker, a WHOOP strap on his right arm.

The fitness tracker, WHOOP, which has been worn by many top sportsmen measures various biometrics, such as heart rate, sleep, and recovery.

Billy is known for prioritising his health, so this comes as no surprise to many people who follow him. Probably, this is the secret behind Billy Horschel’s many wins in golf.

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