Carlos Del Moral will go into the final day of the European Tour Qualifying School with a four-shot lead after carding a fifth-round 65 at the PGA Catalunya Resort.
The seven-under-par round helped the Spaniard extend his overnight lead by three shots over Fabrizio Zanotti as he fired eight birdies and his first bogey in 35 holes at the 16th to reach the clubhouse on 21-under.
"I'm not stressed at all on that course," Del Moral, who is looking to qualify for the fourth time in six years, told the European Tour website. "I'm playing every shot really calm and positive and I'm not making many mistakes out there.
"I feel like if I have any putts between five and 10 metres I have a chance so I don't need to go for pins and when you don't have to go for pins it's a lot easier.
"I have got a lot of trust in my putter and hopefully it will be the same (on Friday)."
An eagle at the par five 15th was the highlight of the day for Zanotti, who shot a 68 to sit four clear of England's James Morrison and Italy's Marco Crespi, who are in a tie for third on 13-under.
There are 32 players, including 11 rookies, in contention to earn a 2014 European Tour card, with the top 25 and ties qualifying.
Stuart Manley, on 12 under par, and fellow Britons Alastair Forsyth and and Adam Gee, one shot further back, appear well poised to qualify.