Tony Bettenhausen 100
Illinois State Fairgrounds
1 Mile Dirt Oval
100 Laps/100 Miles
August 22, 1970
| Finish | Start | Driver | Car # | Sponsor/Name | Chassis | Engine | Laps | Status |
Points |
| 1 | 6 | Al Unser | 2 | Johnny Lightning 500 | King D | Ford | 100 | 1:36:18.40 62.301 | 200 |
| 2 | 17 | Carl Williams | 82 | S & W Racing | Meskowski | Offy | 100 | Finished | 160 |
| 3 | 8 | Jim McElreath | 14 | McElreath | McElreath | Chevy | 97 | Flagged | 140 |
| 4 | 25 | Bruce Jacobi | 22 | Windmill Trucking | Silnes | Offy | 97 | Flagged | 120 |
| 5 | 26 | Bentley Warren | 94 | Vatis Enterprises | Vollstedt | Offy | 93 | Flagged | 100 |
| 6 | 20 | Jimmy Caruthers | 57 | Ken Brenn | Meskowski | Offy | 86 | Blown engine | 80 |
| 7 | 12 | Tom Bigelow | 84 | Midwest Manufacturing | Kurtis | Offy | 82 | Flagged | 60 |
| 8 | 24 | Merle Bettenhausen | 44 | Boyce Holt | Turner | Chevy | 71 | Broken timing chain | 50 |
| 9 | 10 | Bobby Unser | 3 | Wagner-Lockheed | Watson | Offy | 70 | Blown engine | 40 |
| 10 | 7 | Mike Mosley | 9 | G. C. Murphy | Watson | Offy | 67 | Broken suspension | 30 |
| 11 | 2 | Johnny Rutherford | 18 | Patrick Petroleum | Lesovsky | Offy | 60 | Magneto | 20 |
| 12 | 11 | Bob Harkey | 52 | Bob Harkey | Meskowski | Offy | 47 | Ignition | 10 |
| 13 | 27 | Ralph Liguori | 58 | Enterprise Machine | Flynn | Offy | 45 | Lost hood | |
| 14 | 22 | George Snider | 24 | City of Syracuse | Dunlop | Offy | 29 | Broken wheel | |
| 15 | 9 | A. J. Foyt | 7 | Sheraton-Thompson | Meskowski | Ford | 28 | Fouled plugs | |
| 16 | 15 | Johnny Parsons | 39 | Seymour Enterprises | Meskowski | Chevy | 26 | Engine failure | |
| 17 | 23 | Sam Sessions | 85 | Seidelman | Ward | Offy | 18 | Blown engine | |
| 18 | 21 | Arnie Knepper | 74 | Burke | Moore | Offy | 15 | Magneto | |
| 19 | 14 | Dick Tobias | 77 | Walther's Tyrone | Silnes | Offy | 15 | Engine | |
| 20 | 4 | Gary Bettenhausen | 16 | Thermo King | Ward | Ford | 12 | Lost wheel | |
| 21 | 18 | Will Cagle | 12 | Daniels Cablevision | King | Chevy | 12 | Blown engine | |
| 22 | 13 | Jim Malloy | 31 | Federal Engineering | Meskowski | Offy | 10 | Overheated | |
| 23 | 19 | Karl Busson | 48 | Ron Hart | Cedoz | Chevy | 10 | Overheated | |
| 24 | 5 | Mario Andretti | 1 | STP Oil Treatment | King | Gurney-Weslake Ford | 5 | Broken suspension | |
| 25 | 1 | Larry Dickson | 20 | STP Gas Treatment | Kuzma | Offy | 4 | Burned piston | |
| 26 | 16 | Bruce Walkup | 98 | Wynn's Spitfire | Watson | Offy | 1 | Burned piston | |
| 27 | 3 | Greg Weld | 41 | Grant King | King | Chevy | 0 | Cut eye | |
| -- | -- | Bill Puterbaugh | 19 | MVS | Ward | Offy | -- | Did not start | |
| -- | -- | Jerry Karl | 52 | Trackstar Helmet | Gerhardt RE | Chevy | -- | Did not appear | |
| -- | -- | Roger McCluskey | 89 | Quickick | Meskowski | Offy | -- | Did not appear | |
| -- | -- | Art Pollard | X | X | X | X | -- | Did not appear | |
| -- | -- | Billy Vukovich, Jr. | X | X | X | X | -- | Did not appear |
| Lap Leaders | Total | Laps |
| Al Unser | 56 | 45-100 |
| Johnny Rutherford | 44 | 1-44 |