Chicago (39) was introduced in 2007 by none other than "low handicapper," Ross Udey. In Chicago 39, each golfer subtracts his handicap from 39, yielding his target number called the “Hurdle.” Let’s say your handicap is 15. That means your hurdle is 24, and your goal as you play is to reduce that number to zero (or lower) by knocking off points for good holes. You get to subtract one point for a bogey, two for a par, three for a birdie and four for eagle. Double bogeys (and worse) don’t count. The winner is the player who goes the lowest over 18 holes.