Bent grass course was designed by Robert Muir Graves and built in 1968. The course is 4,604 yards from the blues with a rating of 61.8, a slope of 105 and a par 33. Unlike executive courses, Diablo Hills is a little more than half of a tough 18 hole course. Under normal circumstances it even has a par 5 hole on the 8th. There's a putting green next to the first hole.
Carts are available to rent.
The 1st hole, which begins at the Clubhouse, is a 264 yard par 4. A fence lined with houses behind it comes into play on the right narrowing down the fairway to the green. After a midway dip, it's uphill to the green. The pin is at the back of the green which tips away from the tee. The green, which has three sandtraps, is surrounded by pine and maple trees.