J.P. Hayes shot a course-record 10-under-par 61 to share the halfway lead at the John Deere Classic with Fred Funk.

The pair are both on 14 under, breaking the 36-hole tournament record.

They have a one shot advantage over Robert Gamez, who went round in 64 with Briny Baird and Nolan Henke in joint fourth on 11-under.

Funk is the highest-ranked player on the PGA Tour money list in the field with many players opting for a break after last week's Open Championship at Muirfield.

Hayes made a slow start but had birdies from the fourth to the seventh before a bogey at the eighth slowed his charge.

He then birdied the first three holes on the back nine and closed with three more on the last four holes.

"It was a lot of fun," Hayes said.

"I felt like I was going to play well but you never expect something like that.

Feeling good

"The putts started going in and I hit the ball probably as good as I hit it yesterday and that made the difference."

Funk, who hasn't won on the PGA Tour since 1998, came close two weeks ago with a second-place finish at the B.C. Open.

"I feel really good coming off such a good week and am really hungry for a win," Funk said.

Funk, who had seven birdies in his round, has not had a bogey in his opening two rounds.

Leading second-round scores from the John Deere Classic (US unless stated)

128 Fred Funk 64 64, J.P. Hayes 67 61
129 Robert Gamez 65 64
131 Briny Baird 67 64, Nolan Henke 66 65
132 Lucas Glover 66 66, Tim Petrovic 67 65, Gene Sauers 66 66, Pat Bates 70 62, Mike Heinen 63 69
133 Pat Perez 68 65, Tripp Isenhour 65 68, Miguel Angel Jimenez (Spa) 67 66, Chris Riley 69 64, Hidemichi Tanaka (Jap) 67 66, Bob Burns 69 64, Joe Durant 67 66, Peter Jacobsen 66 67, Spike McRoy 66 67, Carl Paulson 69 64
134 Brian Bateman 68 66, David Gossett 65 69, Notah Begay III 69 65, Duffy Waldorf 66 68, Jay Delsing 70 64, Steve Jones 68 66, Neal Lancaster 69 65
135 John Rollins 69 66, Jerry Smith 66 69, Kirk Triplett 68 67, Dan Forsman 68 67
136 John Senden (Aus) 68 68, Jonathan Byrd 69 67, Charles Howell III 71 65, Jeff Gove 66 70, J.J. Henry 67 69, Kent Jones 68 68, Paul Stankowski 72 64, Bart Bryant 69 67, Glen Day 70 66, Paul Goydos 69 67, Peter Jordan 66 70, Greg Kraft 71 65, J.L. Lewis 67 69
137 Brad Elder 68 69, Joe Ogilvie 71 66, Ted Tryba 70 67, Andrew Magee 70 67, Dicky Pride 71 66