England's Oliver Wilson, who lost his European Tour card last season, hit a seven-under-par 65 on Friday to lead the Madeira Islands Open by one shot at the halfway stage.
Wilson, yet to drop a shot after two rounds, leads from Swedish pair Magnus A. Carlsson and Joakim Lagergren, who both had rounds of 66, and England's Andy Sullivan, who hit a 64.
"I played nicely," said the 31-year-old Wilson, who was in the European Team at the 2008 Ryder Cup at Valhalla and is a nine-time runner-up on the Tour.
"The fact I haven't had a bogey for two rounds shows I'm playing solidly and sensibly."
Sullivan, a Walker Cup player in 2011, also had a bogey-free day and attributed his superb round, which featured six birdies and an eagle, to an improved putting technique.
"It's just great to see the ball rolling into the hole," said the 24-year-old.
"I'm hitting the ball nicely. It's the first time I've been in this position so I'm just going to take it as it comes and try and enjoy it.
"The only thing I can do is keep doing what I've been doing, as it's worked so far."