Westwood was happy with his bogey-free round but was left to rue some missed chances.
Clark enjoyed a bogey-free round and picked up four shots for a solid day's work.
Chasing his first European Tour victory since the 2001 English Open, O'Malley shot a bogey-free round of six birdies.
Dubai resident Stenson shot a bogey-free seven-under 65 to lead on 11-under 133.
Graeme McDowell posted five birdies in a bogey-free 67 to tie for third place with Retief Goosen on 14 under.
Rose shot a bogey-free round of 67 but is expecting both Woods and McIlroy to threaten as the competition progresses.
Waite began the day nervously with his opening drive narrowly missing the water, but he recovered well to register a bogey-free round.
Chopra is on seven-under-par 135 after firing a bogey-free 65 with Australia's Andrew Dodt and China's Liang Wenchong two shots further back.
The 33-year-old McLean, who is based in Cape Town, made the most of his advantage of knowing the course to card seven birdies in a bogey-free round.
Stricker started the day in confident mood, but his slip at the 13th proved decisive as he eventually finished 12 under following a bogey-free round of 69.
He'll also need some cooperation from the likes of Snedeker, who played bogey-free golf Saturday and ended the day at seven-under, with birdies on 13, 15 and 17.
After a bogey-free 68 on Thursday, he opened the second round with five birdies in nine holes and finished with a 67, good enough for the outright lead.
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In relatively benign conditions, McIlroy shot a masterful bogey-free 66 Sunday, culminated by an entirely gratuitous but enormously fun 20-foot birdie putt from the fringe on the final hole.
The Argentine overnight leader was caught early on but picked up shots at the fifth and seventh on his way to a bogey-free 68 to move to 14 under.
But the seven-time major winner's bogey-free round was only good enough for second as Matthew recovered to sink a trio of birdies, including a monster 45-foot putt on the 14th.
Immelman opened Thursday with a bogey-free 68 (only Sergio Garcia also avoided bogeys) and followed Friday with a 75, to finish like Dustin Johnson and Stricker at one-under for the tournament.
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His opening 68 was the only bogey-free effort in the first round at Carnoustie and his performance caught the imagination of both spectators and the media alike at the famous Scottish links.
The 25-year-old Warren, who holed the winning putt in the 2001 Walker Cup, spent six hours hitting balls with coach Bob Torrance on Monday, and it paid instant dividends with a bogey-free round.
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Garcia played solidly for a bogey-free 67, saving par from 18 feet on the last after driving into sand, while Kaymer recovered from a double bogey at the short second to card a 68.
But their bogey side United leveled in the 25th minute through veteran Ryan Giggs' superb free-kick, then fellow midfielder Anderson made it 2-1 four minutes before halftime with his first goal in open play for the club.
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