Know Your Roll

The speed of the greens you're playing on a given day is a critical piece of information that will help you make more putts. Enter the Stimpmeter.

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GOLF IS A GAME of amazing technological advancements. Everything from swing speed to ground force to angle of attack is measured, calculated and analyzed using state-of-the-art equipment with scientific precision. So it's kind of cool that the speed of the greens from muni to major is determined by the simplest of devices—a stick. Okay, it's not exactly a stick; it's a Stimpmeter.

1. What is a Stimpmeter?