A look at the key hole in the third round of the PGA Championship:
STROKE AVERAGE: 3.221.
KEY FACT: Jordan Spieth hit 4-iron to 12 feet for birdie just before Jason Day made his double bogey on the 15th hole. With a one-shot lead, Day hit 4-iron to 25 feet and made it for birdie to give him a two-shot cushion. Matt Jones, near the lead most of the day, went left into a bunker and made double bogey to fall five shots behind.