Seamus Power may need to shoot a seven-under-par 64 in the final round of the Northern Trust tonight to make the second leg of the FedEx Cup playoffs.
The West Waterford man (31) posted a one-under 70 in Saturday's third round at Ridgewood Country Club in New Jersey and while he moved up nine spots to tied 58th on one-under par, he's some seven shots shy of the solo 21st place finish he now needs to move from 125th into the top 100 who progress to next week's Dell Technologies Championship in Boston.
At the top of the leaderboard, Bryson DeChambeau made hay as the leaders faltered, carding an eight-under-par 63 to lead by four shots on 16-under par from Keegan Bradley, who shot a stunning, bogey-free 62.
DeChambeau. who narrowly failed to win one of the eight automatic spots on Jimy Furyk's US Ryder Cup team, is simply focussed on winning now.
"I've got a four-shot lead, and never really been in this spot before," DeChambeau said. "But I'm excited because this is a new challenge for me, and I always like challenges."
Australian Cameron Smith (65) and Tony Finau (66) are five behind in joint third on 11-under with Billy Horschel (66) and Adam Scott (70)
Jordan Spieth found form with the putter and carded a 64 to move within sight of the lead on nine-under with the likes of Phil Mickelson and overnight leader Brooks Koepka, who struggled with the blade and shot a one-over 72.
Jamie Lovemark, who was tied with Koepka at halfway, shot 73 as Dustin Johnson also struggled and shot 72.
On the PGA Tour Champions, Darren Clarke ran out of steam in his second round at the Boeing Classic in Seattle when he dropped four shots in his last four holes and shot a 76 to slip from 11th to tied 49th on level par.
He's 14 strokes behind Kevin Sutherland, who shot 60, and Ken Tanigawa, who posted a 64 to leave them three ahead of Scott McCarron on 14-under.