When signing into the proshop of a new golf course, I usually ask what the greens are running. This simple question refers to how fast the greens are playing. In my opinion, a reasonable speed for amateurs is between ten and eleven on the stimpmeter. The stimpmeter is a device used to measure the speed of a golf course putting green by applying a known velocity to a golf ball and measuring the distance traveled in feet. It is not a very scientific device, but is very important if golfers understand what this means. The intent of the article is to demystify a stimpmeter so we can better prepare ourselves for a great round of golf.