I want more distance next season.” Who wouldn't? Distance doesn’t show up because you swung a club harder a few ...
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 ...
After graduating with a mechanical engineering degree from the Colorado School of Mines, Marty Jertson tried playing professional golf on the mini tours. But when he didn’t make it through Q-School, ...