Washington - Hometown hero Martin Piller completed a four-under par 66 second round Saturday to match fellow American Webb Simpson for the 36-hole lead at the US PGA Dean and Deluca Invitational.
Piller, who grew up near host Colonial in Fort Worth, Texas, shook off a double bogey at the par-5 11th with morning birdies at the par-3 13th, par-4 15th and closing hole to equal Friday finisher Simpson, the 2012 US Open champion, on eight-under 132.
Storms delayed the start of play on Friday for five and a half hours, forcing 61 players to complete their second rounds on Saturday morning. In all, 70 players made the cut on one over par.
World number two and reigning US Open champion Jordan Spieth lurks one stroke off the pace along with fellow Americans Bryce Molder, Kyle Reifers and Ryan Palmer.
Spieth will play alongside the co-leaders in a final trio as organizers try to complete the third round Saturday despite forecasts of more storm delays.
Spieth, who squandered a last-day lead to lose the Masters and missed the cut at the Players Championship, finished his second round before darkness Friday while Molder, who led by one with four holes to finish at sunset, made bogeys at 16 and 18 to stumble back.
Leading scores after Saturday's conclusion of the storm-hit second round of the US PGA Dean and Deluca Invitational at Colonial in Fort Worth, Texas (par 70, USA unless noted):132 - Webb Simpson 65-67, Martin Piller 66-66
133 - Jordan Spieth 67-66, Bryce Molder 64-69, Ryan Palmer 66-67, Kyle Reifers 66-67
134 - Patrick Reed 65-69, David Hearn (CAN) 67-67
135 - Tony Finau 68-67, Adam Hadwin 68-67, Anirban Lahiri (IND) 65-70, Jason Dufner 66-69, Noh Seung-Yul (KOR) 67-68, Marc Leishman (AUS) 68-67
136 - Jonas Blixt (SWE) 67-69, Brandt Snedeker 68-68, David Toms 67-69, Harris English 67-69, Ben Martin 68-68
137 - Steven Bowditch (AUS) 69-68, Bill Haas 67-70, Johnson Wagner 70-67, Kevin Kisner 71-66
138 - Emiliano Grillo (ARG) 69-69, Shawn Stefani 70-68, Colt Knost 68-70, Kevin Na 70-68, Nick Taylor (CAN) 69-69, Jimmy Walker 70-68, Steve Flesch 70-68, Scott Piercy 71-67, Chris Stroud 69-69