McNulty four clear

Mark McNulty fired an eight-under-par 63 – his best round of the year – to open up a four-stroke lead after the second round of the SBC Championship in San Antonio, Texas.

McNulty – who began the day one shot behind the leading quartet of Dave Stockton, James Mason, Tom Jenkins and Tom Kite – moved to 12 under on 130 at the 6,661-yard Oak Hills Country Club.