Many tennis players use a tennis dampener, a cheap piece of silicone that reduces the vibration of the strings and makes a smoother sound on contact with the ball.
The dampener created by Courtmatics does a lot more. By placing a microcomputer complete with inertial sensors, internal memory and Bluetooth inside a typical dampener, the company measures tennis analytics from serve type to footwork.
“The technology helps by providing the feedback to the player that just wasn’t available,” Courtmatics CEO Andre Reznik said. “When getting off the court we didn’t feel like we knew what we needed to improve, we thought technology could fill that gap and help us focus in training.