PGA Tour professional Jake Knapp recently tested every PXG Golf iron model alongside fitting expert Johnny Wunder. The comprehensive equipment trial at Scottsdale National highlighted crucial differences in smash factor and launch conditions between professional and amateur ball-striking profiles. Players constantly obsess over velocity. Jake Morrow addressed the baseline metrics for proper evaluation, noting, “What’s the “target” ball speed? The PGA Tour average for a 7-iron is right around 123 mph of ball speed. The “average” golfer is closer to 115 mph if they’re swinging between 75-80 mph. Tour players, like Knapp, obviously swing faster but also are aided by single-piece irons, whereas most amatuers use an iron that provides a little bit more help. The truth is, there really is no “standard” speed that fitters try to achieve for every golfer. Instead, we try to match up speed, peak, height and spin to dial a player in. Remember, though, speed creates spin and height. Regardless of loft, which is where most golfers get tripped up, having something with a lower CG that produces a higher ball speed will inherently spin the ball a touch more and launch the ball higher. An important metric to think about here is smash factor or efficiency. You typically want your irons to live in the 1.35 realm. Even up to 1.40 is completely usable. Many golfers may think that trying to get a set of irons close to the legal limit of 1.51 would be the most useful, but you’ll start to run into playability issues. What we want to try to find is a set of irons that still have a usable level of control built into them. That’s where having a ” baseline ” speed to target in a fitting can actually help. The best example I can provide is a good ball-striker who’s losing speed. I know plenty of senior-aged golfers that still strike the ball out of the middle, but their 7-iron has lost 15 to 20 yards over the years, and they want to bring back their “old distances.”
