| Race |
Date |
Cars |
Winner(s) |
St |
Chassis / Engine |
Len |
Sfc |
Miles |
Purse |
Pole |
Cau |
Laps |
Speed |
LC |
| 1984-06 | 07/01/84 | 28 | Mario Andretti | 1 | Lola / Cosworth | 1.682 | S | 168 | 453,825 | 96.012 | 1 | 8 | 80.742 | 0 |
| 1985-05 | 06/30/85 | 28 | Al Unser, Jr. | 6 | Lola / Cosworth | 1.680 | S | 168 | 664,462 | 98.452 | 1 | 1 | 90.167 | 6 |
| 1986-06 | 06/29/86 | 25 | Danny Sullivan | 5 | March / Cosworth | 1.682 | S | 168 | 702,370 | 100.028 | 0 | 0 | 92.340 | 5 |
| 1987-06 | 06/28/87 | 26 | Bobby Rahal | 2 | Lola / Cosworth | 1.682 | S | 168 | 702,550 | 90.108 | 3 | 14 | 86.032 | 2 |
| 1988-08 | 07/24/88 | 25 | Al Unser, Jr. | 6 | March / Chevrolet | 1.217 | S | 183 | 707,620 | 113.632 | 3 | 16 | 99.352 | 5 |
| 1989-08 | 07/16/89 | 28 | Bobby Rahal | 6 | Lola / Cosworth | 1.217 | S | 176 | 716,681 | 113.737 | 5 | 31 | 81.860 | 6 |
| 1990-08 | 07/15/90 | 28 | Michael Andretti | 1 | Lola / Chevrolet | 1.217 | S | 183 | 703,559 | 114.652 | 2 | 17 | 97.291 | 5 |
| 1991-09 | 07/14/91 | 23 | Bobby Rahal | 4 | Lola / Chevrolet | 1.217 | S | 183 | 686,744 | 115.991 | 4 | 19 | 95.551 | 1 |
8 races
6 races
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