Daniel Summerhays fired a four-under par 67 to grab a two-stroke lead over Chris Stroud heading into the final round of the US PGA Tour's Mayakoba Golf Classic. Summerhays Saturday had a 54-hole total of 12-under 201. "Tomorrow, I'm just going to try and do the same things I've been doing all week," said Summerhays, whose biggest career victory to date was as an amateur in a 2007 Nationwide developmental tour event. "I'm going to try and hit the driver really well again. My swing feels really good, so I'm picking out good targets. I'm judging the wind correctly and I'm managing it well. "I'm really looking forward to the opportunity tomorrow to take the lead into the final round of a PGA Tour event and see how I perform," Summerhays said. Stroud carded a 68 for 203. He and Summerhays are the only players with three rounds in the 60s on the Greg Norman-designed El Camaleon course. "The wind is everything on this course," Stroud said. "The wind has a huge effect on every shot, into the greens, off the tees. You have a lot of elevated tee boxes into the wind and you better hit it really straight off the tee or you're going to be in the mangrove out there and trying to find your ball." It was another two shots back to Michael Allen and Will Claxton on eight-under 205. Allen carded a 66 and claxton a 71. Australian Robert Allenby (70) and Marc Turnesa (67) were tied on 206. Defending champion Johnson Wagner, a winner already this year at the Sony Open last month, was one-over for the week after a 71. The $3.7 million US PGA Tour event is played opposite the World Golf Championships Match Play Championship in Arizona, which drew the top golfers in the world this week.