Watkins Glen: Practice 4 Times
| Pos | C.Pos | Class | Drivers | Car | Time | Speed |
|---|---|---|---|---|---|---|
| 1 | 1 | DP | Pruett / Rojas | Chip Ganassi Racing with Felix Sabates / BMW Riley | 1:41.951 | 120.057 |
| 2 | 2 | DP | Fogarty / Gurney / Johnson | GAINSCO/ Bob Stallings Racing / Chevrolet Riley | 1:42.148 | 119.826 |
| 3 | 3 | DP | Angelelli / Taylor / Taylor | SunTrust Racing / Ford Dallara | 1:42.208 | 119.755 |
| 4 | 4 | DP | Dalziel / Forest | Starworks Motorsport / BMW Riley | 1:42.564 | 119.34 |
| 5 | 5 | DP | Jonsson / Krohn | Krohn Racing / Ford Lola | 1:42.926 | 118.92 |
| 6 | 6 | DP | Gidley / von Moltke | Doran Racing / Ford Dallara | 1:43.123 | 118.693 |
| 7 | 7 | DP | Frisselle / Wilkins | AIM Autosport / Ford Riley | 1:43.132 | 118.682 |
| 8 | 8 | DP | Garcia / Rice | Spirit of Daytona Racing / Porsche Coyote | 1:43.152 | 118.659 |
| 9 | 9 | DP | Frisselle / Patterson / Valiante | Michael Shank Racing / Ford Riley | 1:43.478 | 118.286 |
| 10 | 10 | DP | Donohue / Law / Leitzinger | Brumos Racing / Porsche Riley | 1:43.656 | 118.082 |
| 11 | 11 | DP | Barbosa / Borcheller / France | Action Express Racing / Porsche Riley | 1:43.806 | 117.912 |
| 12 | 12 | DP | Negri / Pew | Michael Shank Racing / Ford Riley | 1:45.714 | 115.784 |
| 13 | 1 | GT | Gue / Keen | Dempsey Racing / Mazda RX-8 | 1:51.322 | 109.951 |
| 14 | 2 | GT | Bomarito / Tremblay | SpeedSource / Mazda RX-8 | 1:51.863 | 109.419 |
| 15 | 3 | GT | Davis / Liddell | Stevenson Motorsports / Camaro GT.R | 1:51.876 | 109.406 |
| 16 | 4 | GT | Edwards / Reese / Russell | Banner Racing / Corvette | 1:52.168 | 109.122 |
| 17 | 5 | GT | Christodoulou / Edwards / Long | SpeedSource / Mazda RX-8 | 1:52.574 | 108.728 |
| 18 | 6 | GT | Schaldach | Stevenson Motorsports / Camaro GT.R | 1:52.676 | 108.63 |
| 19 | 7 | GT | Espenlaub / Foster | Dempsey Racing / Mazda RX-8 | 1:52.733 | 108.575 |
| 20 | 8 | GT | Buford / Lamb / Taylor | Racers Edge Motorsports / Mazda RX-8 | 1:52.827 | 108.484 |
| 21 | 9 | GT | Hines / Miller | Miller Barrett Racing / Porsche GT3 | 1:53.264 | 108.066 |
| 22 | 10 | GT | Bleekemolen / Potter / Stanton | Magnus Racing / Porsche GT3 | 1:53.407 | 107.929 |
| 23 | 11 | GT | Assentato / Lazzaro / Longhi / Segal | SpeedSource / Mazda RX-8 | 1:53.555 | 107.789 |
| 24 | 12 | GT | Curran / Davis | Marsh Racing / Corvette | 1:54.053 | 107.318 |
| 25 | 13 | GT | Nonnamaker / Nonnamaker / Sahlen | Team Sahlen / Mazda RX-8 | 1:55.415 | 106.052 |
| 26 | 14 | GT | Collins / Gigliotti / Lux | LG Motorsports / Corvette | 1:55.617 | 105.866 |
| 27 | 15 | GT | Steuer / Trenery | Matt Connolly Motorsports / Corvette | 1:57.039 | 104.58 |
| 28 | 16 | GT | Lally / Pumpelly | TRG / Porsche GT3 | 2:00.866 | 101.269 |
| 29 | 0 | GT | Auberlen / Dalla Lana / Hand | Turner Motorsport / BMW M6 | - | - |
| 30 | 0 | GT | Steuer / Weisberg | Matt Connolly Motorsports / Pontiac GTO.R | - | - |
| 31 | 0 | GT | Ham / Nonnamaker | Team Sahlen / Mazda RX-8 | - | - |
| 32 | 0 | DP | Andersen / Lester / Philippe | Starworks Motorsport / BMW Riley | - | - |