(CNN) -- Denmark's Soren Kjeldsen warmed-up for next month's Masters debut with a course record 10-under-par 62 and one-shot lead at the Andalucian Open in Seville on Saturday.
Dane Kjeldsen's lowest score on the European Tour included a run of seven straight birdies.
Kjeldsen's lowest score on the European Tour included a run of seven straight birdies -- and three holes later a 45-foot eagle putt on the 16th.
It saw him rocket from five behind at halfway to shade Scot David Drysdale at 14-under par 202 with home hope Carlos Del Moral and Alastair Forsyth a further three strokes adrift.
The 34-year-old Drysdale played the last eight holes in six under, also making eagle at 16 and sinking birdie putts of four and 30 feet on the final two greens.
He is seeking his first Tour win and has made 10 trips to the qualifying school, but he was second in the 2006 Russian Open and third at the Joburg Open in January.
Colin Montgomerie's 500th Tour event as a professional was turning into one to forget. Only one behind after an opening 67, Europe's new Ryder Cup captain fell back to 35th place, 12 adrift, with a 75.
Kjeldsen qualified for Augusta by finishing last year 50th on the world rankings by one-hundredth of a point and two weeks ago came seventh in the CA world championship in Miami.
Earlier, Swede Peter Hanson managed only a 74 and knew instantly what it meant: no Masters debut for him.
Needing a top-three finish to have a chance of making the world's top 50 just in time for Augusta, Hanson was down in 58th spot on two over par with a day to go and said: "Over - game over. That's it."
He added: "This is such a big disappointment, everybody knew why I came here this week. I've been so close the past two years. I ended 2007 54th in the rankings and was 55th at the end of last year."
Dane Anders Hansen, who missed the cut at Augusta last year, is 29th as he chases the top-three finish he requires to earn a return trip.