August 17, 2008 | Race 23 of 36 | Practice 3
| FIN | CAR | DRIVER | MAKE | SPONSOR | SPEED | TIME | BEHIND |
|---|---|---|---|---|---|---|---|
| 1 | 99 | Carl Edwards | Ford | Office Depot | 182.537 | 39.444 | Leader |
| 2 | 29 | Kevin Harvick | Chevrolet | Shell / Pennzoil | 181.873 | 39.588 | -0.144 |
| 3 | 11 | Denny Hamlin | Toyota | FedEx Office | 181.630 | 39.641 | -0.197 |
| 4 | 8 | Mark Martin | Chevrolet | U.S. Army | 180.895 | 39.802 | -0.358 |
| 5 | 31 | Jeff Burton | Chevrolet | AT&T Mobility | 180.850 | 39.812 | -0.368 |
| 6 | 28 | Travis Kvapil | Ford | CARFAX | 180.746 | 39.835 | -0.391 |
| 7 | 88 | Dale Earnhardt Jr. | Chevrolet | National Guard / AMP Energy | 180.596 | 39.868 | -0.424 |
| 8 | 6 | David Ragan | Ford | AAA Insurance | 180.343 | 39.924 | -0.480 |
| 9 | 19 | Elliott Sadler | Dodge | Stanley Tools | 180.266 | 39.941 | -0.497 |
| 10 | 83 | Brian Vickers | Toyota | Red Bull | 180.189 | 39.958 | -0.514 |
| 11 | 15 | Paul Menard | Chevrolet | Moen / Menards | 180.054 | 39.988 | -0.544 |
| 12 | 48 | Jimmie Johnson | Chevrolet | Lowe's / Kobalt Tools | 180.005 | 39.999 | -0.555 |
| 13 | 5 | Casey Mears | Chevrolet | Kellogg's / CARQUEST | 179.874 | 40.028 | -0.584 |
| 14 | 38 | David Gilliland | Ford | CitiFinancial | 179.780 | 40.049 | -0.605 |
| 15 | 7 | Robby Gordon | Dodge | Jim Beam | 179.663 | 40.075 | -0.631 |
| 16 | 22 | Dave Blaney | Toyota | Caterpillar | 179.636 | 40.081 | -0.637 |
| 17 | 16 | Greg Biffle | Ford | 3M | 179.475 | 40.117 | -0.673 |
| 18 | 26 | Jamie McMurray | Ford | IRWIN Industrial Tools | 179.404 | 40.133 | -0.689 |
| 19 | 18 | Kyle Busch | Toyota | Interstate Batteries | 179.305 | 40.155 | -0.711 |
| 20 | 24 | Jeff Gordon | Chevrolet | DuPont | 179.136 | 40.193 | -0.749 |
| 21 | 07 | Clint Bowyer | Chevrolet | Jack Daniel's | 178.922 | 40.241 | -0.797 |
| 22 | 77 | Sam Hornish Jr.* | Dodge | Mobil 1 | 178.860 | 40.255 | -0.811 |
| 23 | 84 | A.J. Allmendinger | Toyota | Red Bull | 178.838 | 40.260 | -0.816 |
| 24 | 20 | Tony Stewart | Toyota | The Home Depot | 178.505 | 40.335 | -0.891 |
| 25 | 44 | David Reutimann | Toyota | UPS | 178.262 | 40.390 | -0.946 |
| 26 | 17 | Matt Kenseth | Ford | DEWALT | 178.064 | 40.435 | -0.991 |
| 27 | 41 | Reed Sorenson | Dodge | Target | 177.888 | 40.475 | -1.031 |
| 28 | 12 | Ryan Newman | Dodge | Alltel | 177.870 | 40.479 | -1.035 |
| 29 | 2 | Kurt Busch | Dodge | Miller Lite | 177.857 | 40.482 | -1.038 |
| 30 | 9 | Kasey Kahne | Dodge | Budweiser | 177.835 | 40.487 | -1.043 |
| 31 | 55 | Michael Waltrip | Toyota | NAPA AUTO PARTS | 177.760 | 40.504 | -1.060 |
| 32 | 45 | Terry Labonte | Dodge | Marathon American Spirit Motor Oil | 177.756 | 40.505 | -1.061 |
| 33 | 43 | Bobby Labonte | Dodge | Cheerios / Betty Crocker | 177.690 | 40.520 | -1.076 |
| 34 | 347 | Mike Skinner | Toyota | Champion Mortgage | 177.655 | 40.528 | -1.084 |
| 35 | 1 | Martin Truex Jr. | Chevrolet | Bass Pro Shops / Cub Cadet | 177.314 | 40.606 | -1.162 |
| 36 | 66 | Scott Riggs | Chevrolet | Haas Automation | 177.261 | 40.618 | -1.174 |
| 37 | 78 | Joe Nemechek | Chevrolet | Furniture Row Racing | 177.240 | 40.623 | -1.179 |
| 38 | 10 | Patrick Carpentier* | Dodge | Tow Truck in a Box | 177.200 | 40.632 | -1.188 |
| 39 | 42 | Juan Montoya | Dodge | Texaco / Havoline | 177.191 | 40.634 | -1.190 |
| 40 | 70 | Tony Raines | Chevrolet | Haas Automation | 176.908 | 40.699 | -1.255 |
| 41 | 21 | Marcos Ambrose | Ford | Little Debbie | 176.138 | 40.877 | -1.433 |
| 42 | 01 | Regan Smith* | Chevrolet | DEI / Principal Financial Group | 175.285 | 41.076 | -1.632 |
| 43 | 96 | Brad Coleman | Toyota | DLP HDTV | 174.991 | 41.145 | -1.701 |