Round of 64 09/08/2008 | Round of 32 09/09/2008 | Round of 16 09/09/2008 | Quarterfinal 09/10/2008 | Semifinal 09/10/2008 | Final 09/11/2008 | Winner | |  |  | | 1 | Richard Berkmeyer, St Louis, Mo. | 138 | | | 64 | Dan Horner, Sandy, Utah | 147 |  | |
| | | | | | | |  |  | | 32 | Matthew Clarke, Loudonville, N.Y. | 145 | | | 33 | Chris Lange, Bryn Mawr, Pa. | 145 |  | |
| |  |  | | 16 | Jordan Byrd, Clemson, S.C. | 143 | | | 49 | Ron Ewing, Merced, Calif. | 146 |  | |
| | |  |  | | 17 | Greg Reynolds, Grand Blanc, Mich. | 143 | | | 48 | Steve White, Jackson, Wyo. | 146 |  | |
| |  |  | | 8 | Nathan Smith, Pittsburgh, Pa. | 141 | | | 57 | Todd Mitchell, Bloomington, Ill. | 147 |  | |
| | | |  |  | | 25 | T. J. Shuart, Coral Springs, Fla. | 144 | | | 40 | Jack Kearney, Peachtree City, Ga. | 146 |  | |
| |  |  | | 9 | Andy Roberts, Owensboro, Ky. | 142 | | | 56 | Carlton Forrester, Atlanta, Ga. | 147 |  | |
| | |  |  | | 24 | Jon Lindstrom, Broomfield, Colo. | 144 | | | 41 | Gene Gizzarelli, Bloomfield Hills, Mich. | 146 |  | |
| |  |  | | 4 | Derek Berg, Duvall, Wash. | 140 | | | 61 | Saxon McFarland, Boise, Idaho | 147 |  | |
| | | | |  |  | | 29 | Nathan Colson, Milwaukee, Wis. | 144 | | | 36 | Jimmy Chestnut, Grand Blanc, Mich. | 145 |  | |
| |  |  | | 13 | Matthew Williams, Albuquerque, N.M. | 142 | | | 52 | Skip Corneliussen, Charlotte, N.C. | 147 |  | |
| | |  |  | | 20 | Gene Elliott, West Des Moines, Iowa | 144 | | | 45 | Austin Eaton III, North Sutton, N.H. | 146 |  | |
| |  |  | | 5 | David Noll Jr, Dalton, Ga. | 141 | | | 60 | Garrett Morrison, Orlando, Fla. | 147 |  | |
| | | |  |  | | 28 | Josh Gregory, Augusta, Ga. | 144 | | | 37 | Scott Hardy, Pleasant Hill, Calif. | 146 |  | |
| |  |  | | 12 | Sean Knapp, Oakmont, Pa. | 142 | | | 53 | Eric Spencer, Bloomfield Hills, Mich. | 147 |  | |
| | |  |  | | 21 | Raymond Floyd, Old Greenwich, Conn. | 144 | | | 44 | Ryan McDonald, Rocklin, Calif. | 146 |  | |
| |  |  | | 2 | Tim Mickelson, San Diego, Calif. | 139 | | | 63 | Scott Kammann, Baneberry, Tenn. | 147 |  | |
| | | | | |  |  | | 31 | Michael Stamberger, Plainfield, N.J. | 145 | | | 34 | Brian Haskell, St Joseph, Mo. | 145 |  | |
| |  |  | | 15 | Randy Haag, Burlingame, Calif. | 143 | | | 50 | Jeff Williams, Chuluota, Fla. | 146 |  | |
| | |  |  | | 18 | Brad Nurski, Saint Joseph, Mo. | 143 | | | 47 | Ty Cox, Fort Worth, Texas | 146 |  | |
| |  |  | | 7 | Steve Wilson, St Martin, Miss. | 141 | | | 58 | Chris Hall, Kennesaw, Ga. | 147 |  | |
| | | |  |  | | 26 | Michael Muehr, Potomac Falls, Va. | 144 | | | 39 | John Bearrie, Arlington, Texas | 146 |  | |
| |  |  | | 10 | Jim Dunlap, Tigard, Ore. | 142 | | | 55 | Stephen Sharpe, Greensboro, N.C. | 147 |  | |
| | |  |  | | 23 | Scott Harvey, Greensboro, N.C. | 144 | | | 42 | Ted Moloney, Clayton, Mo. | 146 |  | |
| |  |  | | 3 | Tim Jackson, Germantown, Tenn. | 140 | | | 62 | Andrew Davis, Chicago, Ill. | 147 |  | |
| | | | |  |  | | 30 | Steve Galko, Dallas, Texas | 144 | | | 35 | Brooks Freeman, Midwest City, Okla. | 145 |  | |
| |  |  | | 14 | Chris Noel, Tulsa, Okla. | 143 | | | 51 | Jeffrey Wilson, Fairfield, Calif. | 147 |  | |
| | |  |  | | 19 | Jason Oien, Irvine, Calif. | 144 | | | 46 | Ricky Jones, Thomaston, Maine | 146 |  | |
| |  |  | | 6 | Scott Fawcett, Dallas, Texas | 141 | | | 59 | Mark Scheibach, Bermuda Dunes, Calif. | 147 |  | |
| | | |  |  | | 27 | Matt Behm, Janesville, Wis. | 144 | | | 38 | Adam Dooley, Albany, Minn. | 146 |  | |
| |  |  | | 11 | Michael McCoy, West Des Moines, Iowa | 142 | | | 54 | Michael Harrington, Colorado Springs, Colo. | 147 |  | |
| | |  |  | | 22 | John Ehrgott, Peoria, Ill. | 144 | | | 43 | Alan Bratton, Stillwater, Okla. | 146 |  | |
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