5 high-tech training aids U.S. Open players are using at Torrey Pines

quintic usopen

Plenty of players in the field at Torrey Pines used Quintic's Ball Roll machine to get their putting dialed in.

Andrew Tursky

JWall

Jonathan Wall

Jonathan Wall is GOLF Magazine and GOLF.com’s Managing Editor for Equipment. Prior to joining the staff at the end of 2018, he spent 6 years covering equipment for the PGA Tour. He can be reached at jonathan.wall@golf.com.