Former world number one Martin Kaymer was one shot off the lead after shooting a first-round 68 at the Austrian Open on Thursday. The German carded six birdies in a four-under-par score at the Diamond Country Club to join a three-way tie for second place behind Spain's Alejandro Canizares. American John Catlin and Sweden's Rikard Karlberg also signed for rounds of 68. Canizares benefited from an eagle and four birdies in his 67, with his only blemish around the course at Atzenbrugg, near Vienna, being a bogey at the par-four 12th.