Brad Fritsch tied for 24th after 4th round at PGA Tour Q-school

Ottawa's Brad Fritsch shot a 71 on the PGA West Stadium Course at the PGA Tour qualifying tournament Saturday and sits tied for 24th, seven shots off the pace.

South Korea's Lee Dong-hwan atop leaderboard with 2-stroke lead

Ottawa's Brad Fritsch is tied for 24th after four rounds at the PGA Tour qualifying tournament in La Quinta, Calif. Fritsch already has his tour card secured for 2013 but wants to improve his standing. (Jonathan Ferrey/Getty Images )

South Korea's Lee Dong-hwan shot an 8-under 64 on Saturday on PGA West's Stadium Course to take a two-stroke lead after the fourth round of the PGA Tour qualifying tournament in La Quinta, Calif.

Lee is 19-under for the tournament with two rounds remaining. The final top 25 and ties will receive 2013 PGA Tour cards, while the next 50 and ties will earn Web.com Tour cards.

Ottawa's Brad Fritsch, who already has his PGA Tour card for next season but is looking to improve his standing, shot 71 on the Stadium Course and sits tied for 24th, seven shots off the pace.

Matt Hill of Bright's Grove, Ont., shot a 70 on the Stadium Course and is tied for 86th at 6-under.

Meanwhile on the Jack Nicklaus Tournament Course, Adam Hadwin of Abbotsford, B.C., shot a second straight 68 and is tied for 69th. Richard Scott (68) of Windsor, Ont., is tied for 109th, Mitch Evanecz (70) of Red Deer, Alta., is tied for 124th along with Calgary's Ryan Yip (69) while Roger Sloan (70) of Merritt, B.C., is tied for 135th.

Edward Loar, Meen Whee Kim, Vaughn Taylor and Richard H. Lee were tied for second after their rounds on the Stadium Course. Richard H. Lee had a 64, Taylor shot 70, Loar 71, and Kim 73.

Sweden's Robert Karlsson, an 11-time winner on the European Tour winner, carded a 75 on the Stadium Course to drop from second to a tie for 17th at 14-under. Camilo Villegas, a three-time PGA Tour winner, was tied for 20th at 13-under after a 72.