Jeff Winther started the Mallorca Golf Open with a 62 and he repeated the feat on day three to take a two-shot lead into the final round.
The Dane is 15 under with Spaniard Jorge Campillo two behind, a shot clear of countryman Alvaro Quiros and Swede Sebastian Soderberg.
Australia’s Scott Hend shot a 66, his best round of the week, to be five under. He is among a clutch of players in equal 24th including former major winner Martin Kaymer.
Winther birdied the second, fifth and seventh to get into a seven-way tie for the lead and added further gains at the 10th and 11th as he kept pace with Campillo and Soderberg.
The 33-year-old then put an approach to seven feet on the 16th and holed 20-foot putts on the last two holes to jump out in front as he looks for a first European Tour victory.
Winther has not led into the final round at a European Tour event before and the world number 307 – who has his family with him in Spain this week – believes controlling his emotions could be crucial over the final 18 holes.
“Going home to the place we are staying with the kids will definitely remove every focus on golf there is,” he said.
“It’s more the nerves on course tomorrow that I will have to try to keep in check. Let’s see if Stretch (caddie Ian More) is as good as my old caddie says he is.
“It was lovely today, Jorge and I putted really well and just kept making birdies and birdies, it was almost a little competition between us.”
Campillo carded a 64, a score matched by Soderberg who finished second at last week’s Andalucia Masters, while seven-time European Tour winner Quiros signed for a 65.
Overnight leader Bryce Easton carded 70 to be five shots off the pace.