Lee Westwood and Justin Rose remained in contention for their first major victories after both ground out solid second rounds at the Masters.
The English pair both returned one-under 71s as they finished an intriguing day just three shots off the lead at the halfway stage.
Westwood parred 12 of the first 13 holes, blotting his card with a bogey at the fifth, and birdies at the 14th and 18th ensured a late tee time on Saturday.
"It was a solid day and I did what I needed to in the conditions," said Westwood. "It feels like the sort of week where nobody is going to run away with it.
"I played solidly. I hit it in the right places a lot of the time. I didn't hit it in the wrong places very often, just once on the fifth in the trap. I was plodding my way around the golf course like you have to when it gets tricky around here."
Rose cruised to the turn in 34 only to bogey 11 and 12, and he also carded an ugly six at the 15th before matching Westwood's closing birdie.
"I just I need to warm my putter up," Rose said. "I haven't made a putt in two days and I am where I am, so I'm very encouraged by that.
"I'm trying to stay patient right now. And typically, when I've won tournaments, that's what's happened. My putter has heated up on the weekend and I've been able to take advantage of my good play.
"So I feel like I played very well the first two days and I'm just waiting for that blade to warm up. If I stay patient, I give myself a very good chance that that will happen."
Augusta debutant David Lynn will also go into the weekend on three under after a battling 73, while Luke Donald was hampered by a cold putter as a 72 left him at one under par.
Former Open champion Paul Lawrie bounced back from his opening 76 with a classy 70 to make the cut with three shots to spare, but Graeme McDowell and Ian Poulter will both have the weekend off.
McDowell failed to build on a birdie at the second, dropping five shots including one at the last as a 76 was one too many to qualify for the weekend.
Poulter's hopes were effective ended by a double-bogey at the seventh as he finished seven over after a 75, while three-time major winner Padraig Harrington also crashed out on nine over par.