After studying and reading the green we have determined that our lie has a small down hill slope and the green tilts from left to right which well cause our ball to break right. For this example let us assume our distance to the hole is fifteen feet. We have only a slight downhill slope but we need to account for this when the ball slows down and reacts to the slope. So we would choose a spot less than twelve feet to aim for. In this case will aim for a spot only eleven feet out. Secondly, we will shift our spot to our left to account for the left to right tilt in the green.
Now we want to visualize our target line and spot to aim for as illustrated in the above photo. The amount of speed to apply to the ball would be same as if we had an eleven foot putt on a flat surface. Keep in mind that the contour of the green is what well make the ball curve and not our putting stroke. In short have simplified this putting situation into a straight nine foot putt.
Your final step is to align your body to the yellow imaginary target line keeping both your upper and lower body parallel to this dotted line and apply only enough speed to the ball to reach the blue circle.
Additional factors to be aware of is that uphill putts well be less effected by the slope and break less while downhill putts well be more effected by the slope and break more. Down hill putts well be struck with less force and moving at a slower speed early and therefore will react more. Up hill putts will be moving at a faster speed early and well not react to the slope of the green until they slow down as they reach the hole. A rule of thumb is to play slightly more break on downhill putts and slightly less break on uphill putts.
Again, developing the skill to correctly pick the correct angle, speed and spot to aim for takes time and practice but once that is accomplished the actual putting set up and stoke required is simple. For more information on reading greens and handing putting situations with sloping greens visit our golf putting lessons located on the top menu.