Chris Stroud moved to the top of the leaderboard at the Texas Open on day two, shooting a six-under-par 64 for a two-stroke lead at the halfway mark.
Stroud began the second round in a tie for 10th on four under after an opening 66 at the Resort Course at La Cantera Golf Club and continued his good form with seven birdies and a lone bogey to improve to 10 under.
Stroud birdied the first hole and bogeyed the second but was nearly flawless from then on, picking up three more birdies before the turn and making another three on the back nine to move two clear of Paul Goydos, Tim Petrovic and Tim Herron.
Goydos shot a four-under 66 for the second straight day, Petrovic turned in a five-under 65 and Herron delivered a 67 as the trio reached the midway point at eight under.
Kevin Streelman enjoyed the best round of the day, firing a seven-under 63 to move into a tie for fourth with a group of nine players including Australia's Matt Jones (64) and South Africa's Rory Sabbatini (66).
Nathan Green of Australia, who held the opening-round lead after an impressive eight-under 62 dropped into a tie for 41st after a disappointing 75 while defending champion Justin Leonard barely made the cut after carding a 69 to reach one under.
Collated second round scores & totals in the USPGA Tour Valero Texas Open, LaCantera GC, San Antonio, Texas, United States of America
(USA unless stated, par 70):
130 Chris Stroud 66 64
132 Tim Herron 65 67, Paul Goydos 66 66, Tim Petrovic 67 65
133 Rory Sabbatini (Rsa) 67 66, Michael Thompson 68 65, Jeff Overton 69 64, Joe Ogilvie 66 67, Jimmy Walker 67 66, Kevin Stadler 67 66, Olin Browne 64 69, Kevin Streelman 70 63, Matthew Jones (Aus) 69 64
134 Jason Allred 68 66, Mark Hensby (Aus) 68 66, David Toms 68 66, Mark Wilson 68 66, Chez Reavie 67 67, Paul Claxton 64 70, Craig Kanada 69 65, Scott Verplank 68 66
135 Charlie Wi (Kor) 67 68, Joe Durant 68 67, Pat Perez 71 64, Zach Johnson 69 66, Brian Gay 68 67, Kyle Thompson 66 69, Frank Lickliter II 69 66, Charles Howell III 68 67
136 Patrick Sheehan 65 71, Tag Ridings 66 70, Michael Bradley 66 70, Todd Demsey 66 70, Greg Kraft 65 71, Steve Allan (Aus) 66 70, Tim Wilkinson (Nzl) 67 69, Dustin Johnson 67 69, Bob Estes 68 68, Chad Campbell 71 65, Jhonnathan Vegas 69 67
137 Charley Hoffman 68 69, Brad Elder 68 69, Chris DiMarco 68 69, Nick O'Hern (Aus) 65 72, J.L. Lewis 68 69, Steve Marino 68 69, Nathan Green (Aus) 62 75, Richard S Johnson (Swe) 70 67, Jim McGovern 67 70, John Riegger 68 69
138 Nick Watney 67 71, Vaughn Taylor 70 68, Harrison Frazar 69 69, Dean Wilson 71 67, Sean O'Hair 72 66, Martin Laird (Sco) 67 71, Bo Van Pelt 68 70, Shane Bertsch 69 69, Douglas Labelle 69 69, Robert Gamez 70 68, Steve Elkington (Aus) 68 70, Bob Tway 66 72, Bob Sowards 68 70, Jeff Maggert 73 65, J J Henry 70 68, Chad Collins 65 73, Troy Matteson 68 70
139 Justin Leonard 70 69, Scott Sterling 69 70, Alejandro Canizares (Spa) 66 73, Carlos Franco (Par) 69 70, Tom Pernice Jnr. 70 69, Jason Gore 65 74, Stephen Ames (Can) 68 71, Nicholas Thompson 72 67
Missed the cut:
140 Brandt Jobe 70 70, David Ogrin 69 71, J.P. Hayes 72 68, Mathias Gronberg (Swe) 70 70, Ronald Whittaker 71 69, Ben Crane 69 71, Ryan Palmer 72 68, Bob Heintz 70 70, Richard Johnson (Wal) 71 69, Tom Scherrer 72 68, Jason Dufner 71 69, Lee Janzen 72 68, Gavin Coles (Aus) 68 72, Nick Flanagan (Aus) 68 72, Mathew Goggin (Aus) 67 73, Cameron Beckman 74 66, Ryan Armour 70 70, Tommy Gainey 68 72
141 John Senden (Aus) 73 68, Jeff Gove 70 71, Rich Beem 72 69, Ted Purdy 72 69, Parker McLachlin 73 68, Brenden Pappas (Rsa) 70 71, Heath Slocum 72 69
142 Jerry Kelly 71 71, Rodney Pampling (Aus) 70 72, Bruce Smith 73 69, Omar Uresti 70 72, Davis Love III 69 73, Jay Williamson 72 70, Kenneth Ferrie (Eng) 73 69
143 Marc Turnesa 70 73, Jon Mills (Can) 71 72, Peter Lonard (Aus) 70 73, Jesper Parnevik (Swe) 73 70
144 Travis Perkins (Sco) 74 70, Cody Freeman 71 73, Kevin Chappell 73 71
145 Brett Rumford (Aus) 70 75, Kent Jones 71 74, Matt Kuchar 74 71, David Duval 71 74, Jason Day (Aus) 77 68, Jin Park (Kor) 73 72
146 Brad Adamonis 75 71, Phil Tataurangi (Nzl) 73 73, Eric Axley 75 71, Tommy Armour III 71 75
147 Y. E Yang (Kor) 73 74, Billy Andrade 78 69, David Lutterus (Rsa) 77 70
148 Andrew Buckle (Aus) 69 79
150 Lonny Alexander 73 77
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SABBATANI CLEAR IN TEXAS