Golf Ball Under Foot

The "ball under the outside of your back foot" drill has been a favorite of many good players for years. The idea is to take your set-up position and put a golf ball underneath the outside of your back foot. This will prop your foot up and allow you to build tension on the inside of your back leg as you make your backswing.
This drill will prevent you from moving your weight too far laterally on the backswing, which is a common, distance-robbing flaw of many high handicappers. These players let their weight travel to the outside of their back leg. When this happens, there is no coil produced, and not a lot of energy is created to produce clubhead speed on the downswing.

You want energy, tension, and coil on the inside of your back leg. You should feel a lot of pressure there, just waiting to be released on the downswing. One of the main reasons why this drill is so popular is because of the non-mechanical nature of it. You are not thinking of wrist angles or clubface positions. It is simply an athletic movement--not unlike a quarterback getting ready to throw a long pass--which will help you to produce clubhead speed, and in turn increase your distance. This drill will make you feel exploded, or propelled through the shot. If you practice it enough times, it will come natural on the golf course.

In fact, you don’t even need a golf ball to do it. Anything that will prop your foot up and keep the weight on the inside of your back leg will work. It’s also a good idea to put the ball you are hitting on a tee so you don’t have to move around and replant your foot after each shot.