Ian Poulter stayed in contention at the Masters with a fine four-under round of 68 to position himself as the joint-leading Briton on four under overall.
Poulter, even par going into day three, birdied holes 4, 8, 13, 14 and 15, with a bogey on the 9th his only blemish.
"It was good fun," he said "I wasn't looking forward to today after the way I was hitting out on the range but the only mistake I made was on nine."
Fellow Englishman Lee Westwood is also four under after firing a two-under 70.
If the greens stay softish and they have fairly generous pins you will be able to make some birdies but so will the leaders
Ian Poulter
An inconsistent front nine saw Westwood take birdies on 2, 4 and 8 but bogeys on 3 and 6.
But in benign conditions his back nine was more settled, featuring eight birdies and a birdie two on 12.
Poulter has relished playing at the Masters since making his debut in 2004, making the cut on each of his five appearances.
"I didn't play the first hole particularly well and had a nice little shank from 150 yards down two and I thought this could be a really long day," he told BBC Sport.
"From there I slowed it down, hit a great shot into 4 to make birdie, a 15-foot birdie on 8 and then a frustrating three putt on 9.
"That fired me up for the back nine and I made three birdies on 13, 14 and 15."
It was a fun round - Poulter
Poulter, who finished no worse than tied for 33rd in his four previous appearances at Augusta, launched his late birdie run after reaching the green in two at the par-five 13th.
He then struck a seven-iron to six inches at the par-four 14th before two-putting from long range at the par-five 15th.
"They were three nice birdies but I had a few extra chances on the back nine which I should have taken," said Poulter, a seven-time winner on the European Tour.
Asked how he viewed his chances going into Sunday's final round, he added: "It depends on how the course plays tomorrow.
"If the greens stay softish and they have fairly generous pins you will be able to make some birdies but so will the leaders. I think seven shots [behind] might be a push."
Of the other Britons, Justin Rose and 1988 champion Sandy Lyle are one under after rounds of 71 and 73 respectively, while Luke Donald is level par, Paul Casey one over and Ross Fisher two over.
"It's frustrating," said Casey, who won his maiden PGA Tour title in Houston last week. "I should have got off to a good start and had an opportunity for birdie on 2.
"This golf course can bite you quickly and it is relatively tough conditions. I've confined myself to playing for position and then I'll watch the leaders go at it.
"Nothing seems to have gone the way I wanted it to this week."
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