Instruction Dr. Sasho Mackenzie on speed training December 15, 2021 Share on Facebook Share on Twitter Share by Email Biomechanist Dr. Sasho Mackenzie discusses speed training and how it can help your golf swing. Latest In Instruction 20 mins ago Ditch this misconception to *really* start crushing your driver. Here's how 3 hours ago Short-sided in a greenside bunker? Here’s how to get up and down 6 hours ago Lee Trevino gave Ben Crenshaw ball-striking advice that all golfers should heed 10 hours ago Rules Guy: My ball moved in the middle of my backswing. Now what?