Typically, a ball is topped because the club has not gone far enough down towards the ball or you catch the ball on the way up, instead of at the bottom point. A lot of things can cause this to happen: A club that’s too short. An awkward stance.
Three Keys to Hitting Your Nine Iron Key #1 – Head over the Ball. You want to hit down through your short iron shots so that you can put plenty of backspin on the ball as it leaves the clubface. Key #2 – Hands Ahead at Impact. Key #3 – Never Hit It Flat-Out.