BETHESDA, Md. -- Scoring continues to be difficult at Congressional, except for Hunter Mahan.
Mahan, who came into this week of a career-low 61 in his final round a week ago and tied for second the last time the AT&T National was played here, is 4 under through nine holes and 5 under for the week.
That puts him in a tie for the lead at the moment with clubhouse leaders Brendon de Jonge, Jimmy Walker and Robert Garrigus.
Mahan missed just one fairway and one green on the front nine, where he had five birdies and just one bogey.
No one else in the afternoon wave has been able to come close to the lead.
Meanwhile, 17-year-old amateur Beau Hossler continues to play well. The soon-to-be high school senior was 1 under through his first four holes and is 1 under for the week, just four shots off the lead.