SECOND ROUND LEADERBOARD (GB&I unless stated) -14 R Karlsson (Swe) -10 P Archer, P Broadhurst, S Dyson -9 C Montgomerie Selected others: -8 JP Lima (Por) -4 Pe Lawrie -1 B Dredge Level B Davis +1 S Lyle +3 M Campbell, P McGinley (Can) +4 N Dougherty

The Monaco-based 36-year-old added a 63 to his opening 61 to move clear of first-round leader Phillip Archer, plus Paul Broadhurst and Simon Dyson.

Colin Montgomerie is one back, carding 66 despite fading on the back nine.

US Open champion Michael Campbell missed the cut, just two weeks before defending his title at Winged Foot.

Defending champion Miguel Angel Jimenez, Nick Dougherty and Paul McGinley also missed the cut, which fell at one under.

Six Welsh golfers made the weekend, Phil Price, Stephen Dodd, Jamie Donaldson, David Park, Bradley Dredge and Garry Houston.

"Last year I played very well for long periods but my putting was terrible," said a pleased Karlsson, who has not won on the European Tour since his fifth tournament victory in 2002.

"I've worked a lot on the mental side of the game and tried to enjoy it more out on the course."

His 124-total beat Tiger Woods and Frankie Minoza's records by a stroke.

"It's always nice to hold a record, especially if I'm better than Tiger," he added.

Portugal's Jose-Filipe Lima shot the lowest score of the day, an eight-under 61 at the par-69 Roman Road course - which at 6,743 yards is the shortest used on the European Tour.

Five under after seven was a great start and I blew it really to only finish three under from there Colin Montgomerie

A day after Archer was agonisingly wide with a six-foot birdie putt on the 18th to miss out on being the first to shoot 59 in European Tour history, Lima raced to the turn in just 30 shots.

Lima then birdied the 12th and 13th, holing a bunker shot on the latter to stand seven-under for the round with five holes remaining.

The French-born 24-year-old then holed from 30ft for another birdie on the 14th, but crucially three-putted the next for bogey when his birdie putt caught the edge of the hole and spun four feet away.

Lima could only manage one more birdie, on the par-four 17th, and signed for an eight-under 61 to remain one shot off the lead.

"I was thinking about 59 or even 58 because my game was perfect," he admitted.

"I was joking with my caddy about it but I was still concentrating on my game and playing shot by shot.

"Even after the mistake at 15 I was thinking about an eagle on the par five and more birdies but I am happy with eight under."

I knew it was a fairly hopeless task after the first round Michael Campbell

Montgomerie also felt he had blown the chance of a special score.

The 42-year-old Scot was five under after seven holes, but bogeyed three of his next eight.

"I'm very disappointed," said the eight-time European number one, who has never won a tournament in Wales.

"Five under after seven was a great start and I blew it really to only finish three under from there.

"The last month my game has been 50% and it's now 70% so it's going in the right direction at least, but it's not there yet, nowhere near."

Campbell was not too concerned after his 66 failed to repair the damage from his 75 on the opening day opening

"I knew it was a fairly hopeless task after the first round so I decided to use it as practice for the US Open because I won't play competitively before then," said the Kiwi.