What duffspin is
Duffspin is the weak, skidding spin produced when a chip or pitch is struck near the bottom of the clubface. The ball leaves with little useful backspin, lands short of the intended spot and releases too far. It looks like a routine mishit, but the result is specific: the grooves cannot grab the ball, so the shot loses the check that better players rely on around the green.
A typical example is a tight lie with a lofted wedge. The player tries to lift the ball, the leading edge slides beneath the equator, contact sits on the bottom two grooves, and the ball runs eight feet past the hole. The takeaway is simple: duffspin is a contact problem before it is a swing-speed problem.
Why the low-face strike happens
The most common cause is an early release combined with a ball position too far forward. The clubhead reaches the low point of the arc before the ball, then rises; the face meets the lower grooves and the ball is squeezed out with weak spin. A steep, handsy downswing that tries to scoop rather than strike down produces the same low-face contact.
On a firm lie the margin for error shrinks because the bounce cannot rescue a thin strike. The player sees the ball land short, assumes more loft is needed, and moves the ball even further forward. That change makes the low-face strike more likely. The practical solution is to move the ball back slightly, keep the hands ahead and strike the back of the ball with a downward blow.
How to diagnose duffspin in three balls
- Place a coin two inches behind the ball and strike the coin after the ball, not before it.
- Check the strike mark: a mark on the bottom two grooves confirms duffspin.
- Watch the first bounce: a low, skidding bounce with a long release is the duffspin signature.
These checks separate duffspin from a fat shot. A fat shot starts behind the ball; a duffspin strike often feels clean but produces a low, spinless flight and excessive roll.
Correction drill for the chipping green
Set up with the ball slightly back of centre, weight forward and the shaft leaning toward the target. Make three-quarter swings with a towel under the lead armpit. The goal is to brush the grass after the ball and finish with the chest facing the target. For players who want a structured way to practise the correction, a tutor-led session on duffspin can turn the drill into a repeatable habit.
Fix duffspin by changing the strike window, not by buying a new wedge. Once the low point moves forward and the hands stay ahead, the grooves can do their job and the ball starts checking again.