Simon Wakefield from England carded his lowest Challenge Tour round to be tied for the lead with Denmark's Mads Vibe-Hastrup after the first day of the Rolex Trophy in Switzerland.
Both signed for seven under par 65 to finish a shot clear of three more Englishmen, James Hepworth, Stuart Little and Andrew Marshall.
On a superb summer day, Wakefield was out from the tenth tee at the Golf Club Geneve and reached the turn in 31 with five birdies. Three more were accumulated in a homeward 34, his only blemish coming at the ninth, his final hole, where he missed a short putt for par.
Vibe-Hastrup, who has rarely been outside the top ten in any of his Challenge Tour appearances this season, also began at the tenth but made his score with a homeward 30 as he assembled an eagle and six birdies in his 65.
Marshall, from Norfolk, continued his good form which has already secured his Tour card for next year with 66, while Yorkshire's Hepworth and Little from Gloucestershire are seeking solid finishes this week to bolster their chances of joining Marshall in the big league.
Ranking leader Mark Foster, another who will be playing on the Europeran Tour in 2002, is among a large group on 68, which also includes other champions this season in Sweden's Peter Hedblom and Ashley Roestoff of South Africa.