| class | comment | laptime | date | Column1 |
| AS | by [3] Bill Schepergerdes | 0:01:50.219 | 1.17E+15 | 1/28/2007 |
| CF | by Alan Karns | 0:01:57.702 | 1.04E+15 | 2/2/2003 |
| CFC | by Mark Young | 0:01:49.381 | 1.08E+15 | 1/31/2004 |
| CSR | by [21] Don Simons | 0:01:36.407 | 1.23E+15 | 1/25/2009 |
| DSR | by [81] Joshua Held | 0:01:38.352 | 1.17E+15 | 1/28/2007 |
| EP | by [88] Roger Sather | 0:01:25.530 | 1.2E+15 | 1/26/2008 |
| F500 | by [84] Jeff Jorgenson | 0:01:47.193 | 1.23E+15 | 1/25/2009 |
| FA | by Dan Selznick | 0:01:33.872 | 1.14E+15 | 1/29/2006 |
| FC | by [89] Les Phillips | 0:01:41.553 | 1.17E+15 | 1/27/2007 |
| FF | by Scott Rarick | 0:01:44.454 | 1.08E+15 | 2/1/2004 |
| FM | by Brian Thienes | 0:01:40.447 | 1.08E+15 | 1/31/2004 |
| FP | by [33] Brian Linn | 0:01:55.687 | 1.23E+15 | 1/25/2009 |
| FST | by [13] Eric Boghossian | 0:02:03.023 | 1.24E+15 | 6/6/2009 |
| FV | by [05] Brian McCarthy | 0:02:00.923 | 1.23E+15 | 1/25/2009 |
| GP | by Gary Wittman | 0:02:01.732 | 1.08E+15 | 2/1/2004 |
| GT-1 | by [12] Michael Lewis | 0:01:33.879 | 1.23E+15 | 1/25/2009 |
| GT-2 | by [03] Brooks Potter | 0:01:43.093 | 1.23E+15 | 1/25/2009 |
| GT-3 | by Mike Henderson | 0:01:45.129 | 1.08E+15 | 2/1/2004 |
| GT-4 | by Mark Weimer | 0:01:58.339 | 1.08E+15 | 2/1/2004 |
| GT-5 | Bill Gilcrease | 0:02:02.260 | 1.08E+15 | 2/1/2004 |
| GT-L | by John Bower | 0:01:58.186 | 1.24E+15 | 6/7/2009 |
| HC | by [87] Derek Stevens | 0:01:50.055 | 1.23E+15 | 1/24/2009 |
| HP | by [33] Gary Wittman | 0:02:03.956 | 1.23E+15 | 1/25/2009 |
| ITA | by Edik Stepanyan | 0:01:57.680 | 1.08E+15 | 1/31/2004 |
| ITB | by Frank Cervetto | 0:02:03.016 | 1.04E+15 | 2/1/2003 |
| ITC | by [3] Jose Torres | 0:02:15.335 | 1.15E+15 | 6/4/2006 |
| ITE | by Geoff Escaletti | 0:01:49.607 | 1.04E+15 | 2/2/2003 |
| ITR | by [07] John Norris | 0:01:55.391 | 1.17E+15 | 1/28/2007 |
| ITS | by John Norris | 0:01:55.134 | 1.08E+15 | 1/31/2004 |
| Lotus | 0:02:10.000 | 1.24E+15 | 6/4/2009 | |
| PRO-7 | by Dave Lemon | 0:02:01.694 | 1.04E+15 | 2/1/2003 |
| PROTK | by Gary Fern | 0:01:55.425 | 1.04E+15 | 2/2/2003 |
| RS | by [69] Bob Spencer | 0:01:55.359 | 1.17E+15 | 1/28/2007 |
| S2000 | by David Ferguson | 0:01:44.016 | 1.08E+15 | 2/1/2004 |
| S7 | by Richard Hille | 0:01:55.597 | 1.04E+15 | 2/1/2003 |
| S944 | by Tracy Goodenough | 0:02:01.867 | 1.14E+15 | 1/29/2006 |
| SF | by Ralph Hill | 0:01:51.946 | 1.08E+15 | 1/31/2004 |
| SM | by [14] Brad Rampelberg | 0:02:00.721 | 1.17E+15 | 1/28/2007 |
| SP | by Paul Fairchild | 0:01:43.526 | 1.04E+15 | 2/2/2003 |
| SRF | by Bill Jucha | 0:01:55.046 | 1.08E+15 | 1/31/2004 |
| SRX-7 | by [31] Henry Botkin | 0:02:05.261 | 1.23E+15 | 1/24/2009 |
| SSB | by [53] Lee Niffenegger | 0:01:58.765 | 1.23E+15 | 1/25/2009 |
| SSC | by Bill Hagerty | 0:02:02.918 | 1.08E+15 | 1/31/2004 |
| T1 | by [32] Ryan Cashin | 0:01:47.035 | 1.23E+15 | 1/25/2009 |
| T2 | by [75] David Schotz | 0:01:51.706 | 1.17E+15 | 1/28/2007 |
| T3 | by Scott Shelton | 0:01:54.958 | 1.14E+15 | 1/29/2006 |