Ted Horn Memorial
DuQuoin State Fairgrounds
1 Mile Dirt Oval
100 Laps/100 Miles
September 7, 1970
| Finish | Start | Driver | Car # | Sponsor/Name | Chassis | Engine | Laps | Status |
Points |
| 1 | 1 | Al Unser | 2 | Johnny Lightning 500 | King | Ford | 100 | 1:01:07.66 98.155 | 200 |
| 2 | 16 | Bobby Unser | 3 | Leader Card | Watson | Offy | 100 | Finished | 160 |
| 3 | 5 | Larry Dickson | 20 | STP Gas Treatment | Kuzma | Offy | 100 | Finished | 140 |
| 4 | 11 | George Snider | 24 | City of Syracuse | Dunlop | Offy | 99 | Flagged | 120 |
| 5 | 17 | Ralph Liguori | 58 | Enterprise Machine | Flynn | Offy | 98 | Flagged | 100 |
| 6 | 13 | Bob Harkey | 52 | Bob Harkey | Meskowski | Offy | 98 | Flagged | 80 |
| 7 | 9 | Tom Bigelow | 84 | Midwest Manufacturing | Kurtis | Offy | 97 | Flagged | 60 |
| 8 | 6 | Dick Tobias | 77 | Dayton Steel Wheel | Silnes | Offy | 95 | Flagged | 50 |
| 9 | 14 | Gary Bettenhausen | 16 | Thermo King | Ward | Offy | 56 | Broken oil line | 40 |
| 10 | 3 | A. J. Foyt | 7 | Sheraton-Thompson | Meskowski | Ford | 50 | Wrecked | 30 |
| 11 | 7 | Johnny Rutherford | 18 | Patrick Petroleum | Lesovsky | Offy | 42 | Magneto | 20 |
| 12 | 8 | Johnny Parsons | 39 | Seymour Enterprises | Meskowski | Chevy | 14 | Blowing oil | 10 |
| 13 | 15 | Larry Cannon | 47 | Cannon | Cannon | Chevy | 10 | Ignition wiring | |
| 14 | 10 | Bruce Walkup | 98 | Wynn's Spitfire | Watson | Offy | 9 | Broken exhaust pipe | |
| 15 | 4 | Greg Weld | 41 | Grant King | King | Chevy | 7 | Overheated | |
| 16 | 18 | Bud Tingelstad | 37 | Wib Spaulding | Meskowski | Offy | 1 | Overheated | |
| 17 | 2 | Mario Andretti | 1 | STP Oil Treatment | King | Ford | 0 | Dead engine | |
| 18 | 12 | Mike Mosley | 9 | G. C. Murphy | Watson | Offy | 0 | Dead engine | |
| -- | -- | Karl Busson | 48 | Ron Hart | Cedoz | Chevy | -- | DNS, too slow | |
| -- | -- | Ron Burke | 74 | Burke | Moore | Offy | -- | Disqualified, lack of experience | |
| -- | -- | Will Cagle | 12 | Daniels Cablevision | King | Chevy | -- | DNS, too slow | |
| -- | -- | Leigh Earnshaw | 57 | Ken Brenn | Meskowski | Offy | -- | DNS, too slow | |
| -- | -- | Bruce Jacobi | 33 | Windmill Trucking | Silnes | Offy | -- | DNS, too slow | |
| -- | -- | Arnie Knepper | 44 | H.E.K. | Turner | Chevy | -- | DNS, too slow | |
| -- | -- | Jim Malloy | 31 | Stearns Transi-Tread | Meskowski | Offy | -- | DNS, too slow | |
| -- | -- | Bill Puterbaugh | 19 | MVS | Ward | Offy | -- | DNS, too slow | |
| -- | -- | Jerry Poland | 70 | Smith Speed Shop | Ward | Chevy | -- | DNS, too slow | |
| -- | -- | Bentley Warren | 94 | Vatis Enterprises | Vollstedt | Offy | -- | DNS, too slow | |
| -- | -- | Carl Williams | 82 | S & W Racing | Meskowski | Offy | -- | Blew engine practice | |
| -- | -- | Jim McElreath | 14 | McElreath | McElreath | Chevy | -- | Withdrew |
| Lap Leaders | Total | Laps |
| Al Unser | 68 | 1-12, 45-100 |
| A. J. Foyt | 32 | 13-44 |