Three ladies got done with their round of golf and the marshal asked them how they did. The first one said, "I did great, I had 20 riders." The second said, "Well I had 15 riders." The third lady said, "I sucked today, I only had seven riders." The marshal didn't want to reveal his ignorance of what a rider was, so he went and asked the course pro. The pro said, "That's when they hit the ball far enough to get in the cart and ride up to the ball for the next shot."