DENVER -- Former University of Colorado golfer Jonathan Kaye will be playing this weekend at the HealthOne Colorado Open, but it may be his final tournament rounds of the year.

Kaye, a two-time winner on the PGA Tour, entered the Colorado Open in part to test how his surgically repaired right foot reacts to a new shoe insert. And so far the answer is, not so great.

"It doesn't feel good," Kaye said after shooting a 1-over-par 72 Friday at Green Valley Ranch Golf Club, leaving him at 3-over 145 for two rounds. "I don't have any cartilage left. I've got to figure out a way to get around."

Kaye stands eight shots out of the tournament lead, held by Broomfield amateur Pat Grady and Utah pro Boyd Summerhays. Grady shot a 1-under-par 70 Friday, while Summerhays had a tournament-best 66.

Kaye isn't sure yet, but he may not play another PGA Tour event this year. He didn't compete at all last year after undergoing toe surgery in December 2006, and lingering problems have limited the Denver native to eight Tour events this year. He's made three cuts, with his best finish being a 44th-place showing.

The 37-year-old has been living with his wife Jennifer and two children near Chautaqua Park in Boulder this summer to escape the heatof their hometown of Phoenix. He could return to Tour action in September, but that doesn't sound likely.

"I'm probably going to end up riding the pine the rest of the year," he said. "This is just not working."

Whether Kaye returns to the Tour this year or next, his medical extension dictates that he'll have 13 tournaments in which to earn roughly $744,000 in order to remain fully exempt.

"I need to win a tournament," said Kaye, who won once in 2003 and once in 2004.

Kaye isn't out of the running to claim his second Colorado Open title, but he has plenty of ground to make up.

Grady shares the top spot despite playing his final five holes in 2 over par on Friday. The 22-year-old CU senior finished with four birdies and three bogeys during the windy afternoon conditions.

Chris Endres of Phoenix, winner of the 1989 Colorado Open, fired a second-round 69 and holds third place at 139, two back of Grady and Summerhays. CU golfer Luke Symons (70 Friday), Broomfield amateur and Stanford golfer Steve Ziegler (71), former Longmont resident Charlie Soule (71) and Kyle Spahr of Barrington, Ill. (72) are at 140.

"I'm due to start playing well," said Grady, who advanced to the third round of match play at last week's U.S. Publinks in Aurora. "I haven't done anything all year. The attitude I take into the weekend is that I'm confident and due to start playing well."

If Grady hangs onto the top spot for the final two rounds, he'll become just the third amateur to win in the 44-year history of the Colorado Open.

Former Denver Broncos quarterback John Elway missed the 36-hole cut for the second time in three Colorado Opens. He shot a 13-over-par 84 Friday and finished at 160, falling 12 strokes shy of qualifying for the weekend. He posted a 45 for his final nine holes, making a triple bogey and a double bogey in the process.

"As soon as the weather got good, I got bad," said the Pro Football Hall of Famer. "I wasn't playing well and couldn't get it going. It was frustrating because I knew I couldn't get to the cut line."

Nevertheless, Elway said he'd "absolutely" like to play in the event again.

Colorado Open

Green Valley Ranch GC

Denver

7,220 yards, par 71

Second round

Boyd Summerhays Farmington, UT 71-66--137

(a) Pat Grady Broomfield 67-70--137

Chris Endres Phoenix,AZ 70-69--139

(a) Luke Symons Lone Tree 70-70--140

Charlie Soule Denver 69-71--140

(a) Steve Ziegler Broomfield 69-71--140

Kyle Spahr Barrington, IL 68-72--140

John Douma Scottsdale, AZ 69-72--141

Michael Baird Castle Rock 70-71--141

Brian Kortan Albuquerque, NM 67-74--141

(a) Jonathan Marsico Englewood 75-67--142

(a) Jon Lindstrom Broomfield 72-70--142

(a) William Schoolcraft Englewood 72-71--143

Geoff Keffer Lakewood 72-71--143

Brian Guetz Scottsdale, AZ 74-69--143

Scott Petersen Parker 70-73--143

Brett Melton Washington, IN 68-76--144

Brett Wayment Logan, UT 75-69--144

Travis Williams Erie 74-70--144

Mike Small Champaign, IL 71-73--144

(a) J. Koprivetz Yorba Linda, CA 72-72--144

Luke Antonelli Silt 71-73--144

Derek Eley Deltona, FL 69-75--144

Kenny Coakley Lakewood 73-72--145

Shane Wahbeh Aurora 70-75--145

Steve Schneiter Sandy, UT 77-68--145

(a) Zach Zaremba Pueblo West 74-71--145

Mike Northern Colorado Springs 73-72--145

Jonathan Kaye Boulder 73-72--145

Brad Besler Lewisville, TX 74-71--145

Drew Stoltz Fort Collins 72-73--145

(a) Stephen Summers Dallas, TX 75-71--146

Dustin Mills Arvada 70-76--146

Christopher Manning Cody, WY 75-71--146

Perry Holmes Addison, IL 76-70--146

Matt Schalk Boulder 74-72--146

(a) Riley Arp Fort Collins 73-73--146

(a) James Kurtenbach Denver 74-72--146

Robert Hunt Highlands Ranch 73-73--146

Chase Cooper Guymon, OK 70-76--146

Tony Aguilar Arvada 76-70--146

Jeff Klein Scottsbluff, NE 74-72--146

(a) Zen Brown Arvada 70-76--146

(a) Derek Tolan Highlands Ranch 71-75--146

(a) Dan Kleckner Lakewood 71-75--146

Jeff Hanson Edwards 75-71--146

Jason Allen Pueblo 77-70--147

Ty Harris Longwood, FL 77-70--147

(a) Tom Whitney La Quinta, CA 78-69--147

Chris O'Connor Phoenix, AZ 75-72--147

Michael Rexroth Tucson, AZ 76-71--147

Clay Ogden West Point, UT 72-75--147

Wil Collins Rapid City, SD 72-75--147

(a) Adam Joiner Carbondale 74-74--148

Doug Rohrbaugh Carbondale 77-71--148

(a) Tyler Bishop Longmont 75-73--148

Barry Conser Scottsdale, AZ 75-73--148

(a) Jim Doidge Pueblo 73-75--148

Jason Preeo Denver 76-72--148

Nicholas Mason Denver 74-74--148

Todd Napikoski Aurora 74-74--148

Zane Zwemke Greenwood Village 75-73--148

Caine Fitzgerald Aurora 77-71--148

(a) Riley Andrews Highlands Ranch 73-75--148

MISSED THE CUT

Ben Portie Westminster 149

(a) Steve Irwin Golden 151

Mike Troyer Boulder 153

Kane Webber Lismore, NSW, Australia 154

(a) Oliver Grabb Boulder 160

(a) John Elway Englewood 160