Si Woo Kim marked a strong start to the FedEx Cup play-offs with an eagle as he carded an eight-under 62 and snatched a share of the lead with JJ Spaun, with Shane Lowry the best of the Irish after a 68.
Shane Lowry recovered from a double bogey on the 6th to post a two-under par round, firing an eagle at the par-five 16th alongside birdies on 4, 10 and 13. The round finished on a bum note, Lowry bogeying the 18th to lie six shots behind the leading pair.
Two-time FedEx Cup champion Rory McIlroy is a couple of shots back after his 70; a run of birdies on 13, 16 and 17 helped to put a better gloss on his efforts. Seamus Power bogeyed the last as he carded a 71.
South Korean Kim admitted to being "excited" to pull off a "perfect" shot, after he holed out from 167 yards on the par-four 18th to cap a strong finish of six-under on his last six holes.
His American co-leader, meanwhile, had eight birdies at TPC Southwind in Memphis as he said it was "hot out here".
"I'm hot, figuratively and literally, I guess. It's hot out here," Spaun told reporters.
Spaun's compatriot Sahith Theegala was at seven-under followed by a group of four including Tony Finau a further shot back, while England's Tyrrell Hatton was at five-under.
