GOLF.com

I Tried It: After using TheStack for 4 months, the yardage gains are significant

Four months ago, my husband, Paul, started using TheStack — a swing speed trainer co-created by biomechanist Dr. Sasho MacKenzie and Ping engineer Marty Jertson. TheStack system helps golfers increase ...
GOLF.com

Want to add some serious speed to your swing? Try this training aid

What do you get when you pair a biomechanics professor with PING’s vice president of performance? Swing speed. Lots of swing speed. Dr. Sasho MacKenzie and PING’s Marty Jertson are two of the ...