| Au Grattan 2003 | ||||||||||
| Historic Race E | ||||||||||
| Finish Pos | Car # | Name | Laps | Lag | Fast lap (seconds) | Speed | Class | Class pos | Car | Hometown |
| 1 | 71 | Ian Baas | 15 | 84.965 | 81.708 | 3D | 1 | 63 Elva MK 7-Red/Yellow | Noblesville IN | |
| 2 | 341 | Fritz Seidel | 15 | 1.761 | 85.07 | 81.6 | 6C | 1 | 73 Porsche 911 Iroc-White | Milwaukee WI |
| 3 | 2 | Rick Riley | 15 | 7.039 | 87.22 | 81.275 | 6X | 1 | 72 porsche RSR - yellow | Grand Rapids MI |
| 4 | 15 | Chris Streit | 15 | 51.648 | 88.695 | 78.636 | 6C | 2 | 70 Porsche 911S-White | Naperville IL |
| 5 | 36 | Lou Rohan | 15 | 01:20.5 | 90.452 | 77.017 | 8B2 | 1 | 69 Lotus Elan-Red | Cincinnati OH |
| 6 | 114 | Wayne Smith | 14 | -- 1 lap -- | 94.365 | 75.244 | 6A | 1 | 67 Chevy Corvette-Silver | Westfield IN |
| 7 | 111 | Tim Thatcher | 14 | 0.349 | 92.584 | 75.225 | 8C | 1 | 70 Porsche 911-Red | Greenville MI |
| 8 | 94 | Stan Fowler | 14 | 1.96 | 94.416 | 75.134 | 6A | 2 | 69 Chevrolet Corvette-Orange | Fenton MI |
| 9 | 62 | Bob Colaizzi | 14 | 8.95 | 93.66 | 74.745 | 8B2 | 2 | 67 Alfa Duetto-Yellow | Dayton OH |
| 10 | 35 | Gary Armbrecht | 14 | 17.156 | 92.669 | 74.293 | 8B2 | 3 | 70 Porsche 911-Black | Grand Rapids MI |
| 11 | 23 | Bernardo Martrinez | 14 | 31.956 | 95.463 | 73.491 | 8B2 | 4 | 66 Alfa Romeo Giulia Sprint GT-Red | Toledo OH |
| 12 | 95 | Michael Farmer I | 14 | 32.656 | 93.779 | 73.454 | 8B2 | 5 | 72 Alfa Romeo Spider-Red | Rockford MI |
| 13 | 81 | Rob Mocas | 14 | 33.104 | 94.531 | 73.43 | 8B2 | 6 | 67 Alfa Romeo GTV-Yellow/Black | Hudson OH |
| 14 | 44 | Robert Maurer | 14 | 37.336 | 94.282 | 73.204 | 3D | 2 | 63 Elva MK VII-Blue/Red | Pella IA |
| 15 | 19 | John Miller | 14 | 57.495 | 97.681 | 72.148 | 6A | 3 | 69 Chevy Camaro-Blue | Centerville IN |
| 16 | 11 | Jim Austhof | 14 | 01:00.1 | 95.841 | 72.016 | 8B2 | 7 | 63 MGB-Red | Alto MI |
| 17 | 61 | John Ruth | 14 | 01:04.8 | 97.836 | 71.773 | 6B | 1 | 66 Ford Mustang-Green | Canton MI |
| 18 | 24 | Paul Cowan | 13 | -- 2 laps -- | 99.299 | 70.024 | 3D | 3 | 65 Moodini SR-Red | Dearborn MI |
| 19 | 72 | David Atkinson | 13 | 8 | 99.979 | 69.608 | 8B2 | 8 | 67 Porsche 912-Red | Toledo OH |
| 20 | 53 | Bob Storc | 13 | 01:04.8 | 103.544 | 66.785 | 8C | 2 | 65 Yenko Stinger-White/Blue | Rochester Hills MI |
| 21 | 60 | Tom Davis | 13 | 01:24.6 | 104.709 | 65.859 | 8B2 | 9 | 67 MG BGTS-BRG | Springfield OH |
| 22 | 28 | Nowell Korey | 13 | 01:27.0 | 103.341 | 65.747 | 8B2 | 10 | 63 MG B-Black/Silver | Wilmette IL |
| 23 | 631 | Bill Slota | 11 | -- 4 laps -- | 104.844 | 65.334 | 8B2 | 11 | 69 MG B-Green | Montague MI |
| 24 | 5 | Jeff Fisher | 10 | -- 5 laps -- | 97.209 | 65.818 | 8B2 | 12 | 72 Lotus 7 Ser 4-White | Leland MI |
| 25 | 39 | Terry Schieble | 9 | -- 6 laps -- | 89.427 | 77.675 | 6D | 1 | 66 Porsche 911-W/R/Y | Portage MI |
| 26 | 14 | Yves Boode | 3 | -- 12 laps -- | 98.688 | 66.92 | 8B2 | 13 | 69 Alpine A110-Blue | Sleepy Hollow IL |
| 27 | 68 | Bruce Wilkie | 2 | -- 13 laps -- | 105.123 | 55.218 | 8B2 | 14 | 67 Alfa Romeo GTV-White/Blue | Ontario Canada |
| 28 | 404 | Marv Lofgren | 2 | 9.549 | 108.233 | 53.267 | 8B2 | 15 | 66 Datsun 1600-Green | Sterling IL |
| 29 | 63 | John Golanty | 0 | -- 15 laps -- | 0 | 0 | 3D | 4 | 63 Elva Mk7-Yellow | Wilmette IL |
| 30 | 83 | David W. Smith | 0 | 0 | 0 | 6A | 4 | 71 Chevy Corvette-White | Carmel IN | |
| 31 | 51 | Rod Beer | 0 | 0 | 0 | 8B2 | 16 | 69 Alfa GTV-Red | Syracuse IN | |
| 32 | 163 | Marc Mastoon | 0 | 0 | 0 | 8C | 3 | 62 Jaguar E Type-Silver | Evanston IL | |
| 33 | 91 | Mike Farmer II | 0 | 0 | 0 | 8B2 | 17 | 69 Alfa Romeo GTV - Red | Rockford, MI | |
| 35 | 99 | Donald Dickey | 0 | 0 | 0 | 8B2 | 19 | 63 MGB-BRG | Marissa IL | |
| 37 | 0 | Richard Worby | 0 | 0 | 0 | 8B2 | 20 | 69 MG BGT-Red/White | Lexington OH | |
| 38 | 1 | Duck Waddle | 0 | 0 | 0 | 3G | 1 | 63 Bobsy SR2-3-Yellow/White | Elkhart Lake WI | |
| 39 | 3 | Sam Cummings | 0 | 0 | 0 | 8B2 | 21 | 71 Alfa Romeo GTV-Orange | Grand Rapids MI | |
| 40 | 8 | Michael Sedlak | 0 | 0 | 0 | 6B | 2 | 70 Mustang Boss 302-Blue | Brighton MI | |
| 41 | 9 | Brian Kennedy | 0 | 0 | 0 | 6B | 3 | 66 Shelby GT-350-White | Cannon Falls MN | |
| 42 | 25 | Chris McGrath | 0 | 0 | 0 | 8C | 4 | 69 MGC-Blue | Naperville IL | |
| 43 | 41 | R. Hal Nichols | 0 | 0 | 0 | 8B2 | 22 | 71 Alfa Romeo GTV-Red | Sylvania OH | |