CASCAIS, Portugal — Gregory Bourdy extended his lead to four strokes in the Estoril Open with a 3-under 68 in today's third round.

The 25-year-old Frenchman, who is aiming for his second European Tour title after his debut victory in Mallorca last October, has a three-round total of 17-under 196 on the Oitavos Dunes course.

Alistair Forsyth kept his hopes alive with a 5-under 66, moving the Scot into second place at 200. A stroke behind is England's Miles Tunnicliff, whose 63 made him the fifth player in this year's tournament to tie the course record.

Tunnicliff, a two-time tour winner who was in 40th place at the start of the day, chipped in for an eagle on the seventh hole and sank six birdie putts in the first 13 holes.