Only 18 holes remain in the season's third major at Muirfield. Here's what You Oughta Know heading into the final round, where Lee Westwood clings to a two-shot lead:
• In search of a his maiden major title, Westwood holds a 54-hole lead at a major event for just the second time in his career. The Englishman led by one shot after three rounds at the 2010 Masters and shot a final-round 71, but finished second to Phil Mickelson, who passed him with a Sunday 67.
• Having celebrated his 40th birthday in April, Westwood looks to become the third consecutive Open champion over the age of 40. Ernie Els came from behind last year at age 42 to win his second Open title at Royal Lytham, while Darren Clarke was also 42 years old when he hoisted the claret jug at Royal St. George's in 2011.
• Making his 62nd career start in a major, Westwood has not lacked for opportunities to win recently, having notched seven top-three finishes in majors since 2008. The Englishman currently holds the dubious distinction of making the most career major starts without a win, ahead of Miguel Angel Jimenez (61), Sergio Garcia (60) and Steve Stricker (59).
• Two shots behind Westwood entering the final round, Tiger Woods will look to win a 15th major title Sunday, though, it would be the first of his career when not leading after 54 holes. Five years removed from his last major triumph at the 2008 U.S. Open, this is Woods' best 54-hole position in a major since the 2009 PGA Championship, when he led after three rounds at Hazeltine before finishing second behind Y.E. Yang.
• A month after tying for fourth at Merion, Hunter Mahan has a spot in the final pairing of the final round for the second consecutive major. He's tied with Woods after a Saturday 68. It's the third consecutive year that one player has been in the last pairing on Sunday in consecutive majors; Rory McIlroy had late Sunday tee times at both the Masters and U.S. Open in 2011, while Graeme McDowell, like Mahan, pulled off the feat at both the U.S. Open and British Open a year ago.
• After his shocking collapse at Royal Lytham a year ago, Adam Scott is again in contention to claim the claret jug, sitting three shots off the lead with 18 holes to play. Scott is looking to become the fifth Australian to win the British Open and just the ninth player to win both the Masters and the Open in the same season, a feat last accomplished in 2005 by Tiger Woods when he won at St. Andrews three months after claiming his fourth green jacket.
• Entering the final round tied for fifth, Angel Cabrera is again in contention in a major just months after losing a sudden-death playoff to Scott at Augusta National. With a win, the Argentinian would become the fourth player to win three of the four major championships since 1980, joining Woods, Jack Nicklaus and Tom Watson on that esteemed list.
• If history is any indication, Westwood has a great shot at holding the claret jug Sunday evening. Since 1958, the 54-hole leader has prevailed at the British Open 30 times in 55 attempts, including two of the last three years. Specifically in Opens staged at Muirfield, the numbers are even more in Westwood's favor; in 15 events, the 54-hole leader/co-leader has gone on to win 10 times, including four of the last five instances dating back to 1972.