The 2026 PGA Championship is shaping up to be a nail-biter, with challenging scoring conditions at Aronimink Golf Club leading to a congested leaderboard. Alex Smalley holds a two-shot lead at the end of round three, but a remarkable 29 players are within five strokes of him, all sitting at six-under. With the final round ahead, the race for the Wanamaker Trophy promises to be intense.

Should there be a tie at the conclusion of round four, the championship will enter a play-off to determine the winner. The play-off format consists of:

• Aggregate play across holes No 10, 17, and 18.
• If players remain tied after these three holes, No 18 will be played again in sudden death, continuing until a winner is declared.

Historically, the current three-hole aggregate playoff format has been used in five PGA Championship playoffs. Additionally, there have been eight previous playoffs that were either settled over an extra 18 holes or through sudden death. This year's championship could very well add another chapter to this exciting playoff history.