In-form Australian Jason Day kept up the pace with a superb 63 to lead by five shots after the second round of the BMW Championship.
The 27-year-old, who captured his maiden major title at the PGA Championship in August before also winning the opening event of the FedEx Cup – the Barclays – later that same month, looks odds on for another victory after taking his total to an incredible 18 under par at Conway Farms GC on Friday.
Day has taken just 124 strokes to complete 36 holes of a major PGA Tour event.
He made nine birdies, an eagle and one bogey in his first round, and added seven more birdies, an eagle and a bogey in his second. That eagle on Friday came at the 18th courtesy of a monster putt to cap his round in some style.
It left him a full five strokes clear of nearest challengers Daniel Berger (64) and Brendon Todd (63).
Jordan Spieth has played superbly over the first two rounds, hitting back after consecutive missed cuts with rounds of 65 and 66, but he still finds himself seven shots back in a tie for fourth alongside Kevin Na (66).
Lying one shot behind Spieth and Na are Justin Thomas (67), George McNeill (65) and Scott Piercy (65).
Rory McIlroy, meanwhile, shot a well-played 65, and lies on nine under, nine off the pace alongside Harris English and Dustin Johnson, who rose up the leaderboard thanks to a 62.
Henrik Stenson (63) and Justin Rose (64) are among those on eight under, while Bubba Watson (70) and Sergio Garcia (65) join several others on seven under.
Despite the wealth of talent behind him, however, it will take something very special from the field, or perhaps something very ordinary from Day, to prevent the Australian – seemingly in the form of his life – from capturing his second FedEx Cup trophy come Sunday.
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