Michael Jonzon of Sweden shot a 6-under 65 Saturday to take a one-stroke lead at the Castello Masters after the third round.
Jonzon finished at 16-under 197 at Club de Campo del Mediterraneo on Saturday. He turned in 33 and added further birdies at the 10th, 13th and 14th holes.
Martin Kaymer of Germany and Sergio Garcia of Spain were tied for second. Kaymer had a 68 and Garcia shot a 67 after finishing his second round in the morning because play on Friday had been halted by failing light.
Sam Hutsby of England was another shot back after a 66 in his third European Tour event as a professional.
"I'm enjoying every minute," Hutsby said. "It's not really sunk in yet that I'm playing on Tour. Hopefully, I can sleep well tonight and then keep to my course-management plan under pressure."
Kaymer will go top in The Race to Dubai if he wins Castello, his first event since breaking some toes in a go-kart crash in August.
