Leading first-round scores on Thursday in the US PGA Tour Sanderson Farms Championship in Jackson, Mississippi (USA unless noted, par-72): 64 - Charley Hoffman, Jimmy Walker, Kevin Chappell, Sebastián Munoz (COL) 65 - Michael Gligic (CAN), MJ Daffue (RSA) 66 - Anirban Lahiri (IND), JT Poston, Keegan Bradley, Talor Gooch, Cameron Davis (AUS) 67 - Roger Sloan (CAN), Corey Conners (CAN), Ryan Armour, Scott Stallings, Kristoffer Ventura (NOR) 68 - Cameron Tringale, Martin Laird (SCO), Andrew Putnam, Aaron Wise, Lee Kyoung-hoon (KOR), Steve Lewton (ENG), Matthew NeSmith, Sergio Garcia (ESP), Charl Schwartzel (RSA), Chris Kirk, Denny McCarthy afp