Graeme Storm shot a seven-under-par round of 63 to lead after day one of the KLM Open.
The Englishman hit a faultless round of golf to edge two shots clear of several players, including Ryder Cup player Martin Kaymer.
The German's return to form included five birdies and an eagle and he was joined on five-under-par by Paraguay's Fabrizio Zanotti and France's Raphael Jacquelin.
England's Paul Casey hit four birdies on the front nine in an opening-round 67 to suggest that he could be ready to step up his return from injury after slumping to 110th in the world golf rankings.
