April 30, 2021

Your guide to understanding how roll works on artificial turf.


The Physics of Golf

Physics. It touches everything in life, including the popular game of golf.

Physics, is the nature and properties of matter and energy: how the club impacts the ball, the ball’s trajectory through the air, its initial bounce, and the concluding roll out.

In an ideal situation, the ground in the direction of the shot would be perfectly flat, perfectly uphill, or perfectly downhill would be perfectly flat, perfectly uphill, or perfectly downhill in the direction of the shot. This would make getting the ball into the hole a simple act by hitting it straight.

Oftentimes you’ll observe that the ground is sloped. When this happens, the ball trajectory cannot be a straight line to get in the hole, meaning it’s a more challenging task. In this case, the ball must now follow a precise curved path to get into the hole. How much the ball has to curve to the right or left is dependent on the amount of the putting green’s slope and undulation.

Regardless of if artificial turf or natural turf is selected to create your perfect backyard putting green, the physical characteristics of the surface impact the performance. We use a blend of commonly used golf course tests and our proprietary playability testing.

One common test to test ball roll is the stimpmeter test. Stimp testing calculates the distance a ball rolls on artificial turf in meters when released from a one-meter height. The ball-to-surface interaction of the grass is directly correlated to the distance the ball rolls.

Our proprietary playability testing for roll analyzes the consistency of standard putting stroke outputs. Our test analyzes the initial bounce of the club face and the spin to roll transition.

Let us take a deeper look at the items that affect how a golf ball reacts and rolls on a turf.


Green Characteristics

Product Construction: Extruded, recycled plastics that come in an assortment of constructions, colors, and lengths. Proper construction is crucial to enable key putting green installation practices; construction will enable turf to be infilled and rolled. Properly rolled fibers will look and play like natural greens.

Pile Height: The thickness and height of the grass blades will provide differences in friction; impacting the velocity and smoothness of the putt.

Fiber: The composition of the fibers will have a significant effect on how a golf ball rolls throughout the putt. Friction and pile lay are impacted by fiber composition. How the ball interacts with the surface is impacted by how the turf lays.

Infill: Essential to the turf system, infill is composed of rounded washed silica. Infill allows ballast and helps drainage. The shape of the infill is critical to performance; angles and edges create roll disruptions.

Aggregate Base: Stone is compacted to create challenging slopes and undulations; the result performs and drains like a championship golf course.

The recipe to creating a Backyard Putting Green that performs like a Championship Golf Green uses the ideal raw materials with elite-proven-tested installation techniques. Very important when you are on the putting green aiming to gently hit your ball into the hole.


The Southwest Greens Difference

Southwest Greens has quantified key performance indicators. Because we have the understanding of what variables impact performance, we’re able to replicate natural greens.

With Golden Bear Turf, you’ll have smoother rolls comparable to playing on your favorite championship course. Scientifically tested and developed to replicate natural grass, from the initial bounce off the clubface... to the spin transition… to the smooth ball roll into the cup...

Golden Bear presents only the best! It’s the perfect backyard practice putting green and offers the most realistic putting surfaces you can find on the market.


Take a look at our Gold Bear Turf, and discover why golfers around the world love Southwest Greens.


See The Greens

5x Golf Digest Award Winner
Golf Digest Editors Choice Award
Best Synthetic Putting Green