Gonzalo Fernandez-Castano shot a six-under 66 round lead at the Qatar Masters.

The Spaniard birdied four of his final five holes at Doha Golf Club to take a one-shot lead over American John Daly, who is search of his first win since 2004. Daly is a two-time major champion, but has slipped to 543rd in the world rankings.

K.J. Choi and Jason Day both shot four-under 68s Thursday and are tied for third.

Lee Westwood and Martin Kaymer, the No. 3 and 4 players in the world, respectively, are in a large group tied in 15th at one-under 71.