| Fin | St | Driver | # | Owner | Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 6 | Al Unser Jr. | 3 | Rick Galles | March 88C/Cosworth | 150 | 91,160 | running | 32 |
| 2 | 2 | Mario Andretti | 6 | Newman Haas Racing | Lola T88/00/Chevrolet | 149 | 71,880 | ring gear | 11 |
| 3 | 5 | Rick Mears | 5 | Roger Penske | Penske PC17/Chevrolet | 149 | 54,500 | running | 0 |
| 4 | 4 | Danny Sullivan | 9 | Roger Penske | Penske PC17/Chevrolet | 148 | 44,960 | running | 0 |
| 5 | 10 | Bobby Rahal | 1 | Barbara Trueman | Lola T88/00/Cosworth | 146 | 41,340 | running | 0 |
| 6 | 9 | Michael Andretti | 18 | Maurice Kraines | March 88C/Cosworth | 145 | 36,720 | running | 0 |
| 7 | 19 | John Jones | 12 | Frank Arciero | March 88C/Cosworth | 141 | 32,600 | running | 0 |
| 8 | 24 | Tony Bettenhausen Jr. | 16 | Tony Bettenhausen Jr. | March 86C 33/Cosworth | 140 | 24,980 | running | 0 |
| 9 | 7 | Raul de Mesquita Boesel | 30 | Douglas Shierson | Lola T88/00 HU08/Cosworth | 133 | 24,360 | running | 0 |
| 10 | 18 | Scott Atchison | 55 | Andy Kenopensky | March 86C/Cosworth | 129 | 23,536 | did not finish | 0 |
| 11 | 20 | Scott Brayton | 91 | Ron Hemelgarn | Lola T88/00/Judd | 126 | 23,124 | gearbox | 0 |
| 12 | 21 | Ludwig Heimrath Jr. | 71 | Ron Hemelgarn | Lola T88/00/Cosworth | 123 | 22,300 | running | 0 |
| 13 | 23 | Randy Lewis | 24 | Ralph Wilke | Lola T88/00/Cosworth | 116 | 22,300 | running | 0 |
| 14 | 1 | Emerson Wojciechowska Fittipaldi | 20 | Pat Patrick | Lola T87/00/Chevrolet | 110 | 28,740 | accident | 107 |
| 15 | 22 | Rocky Moran | 56 | Richard Hammond | March 87C/Cosworth | 96 | 20,240 | accident | 0 |
| 16 | 16 | Scott Pruett | 11 | Andy Kenopensky | March 88C/Cosworth | 94 | 18,180 | ignition | 0 |
| 17 | 15 | A.J. Foyt | 14 | A.J. Foyt | Lola T88/00/Cosworth | 94 | 13,650 | engine | 0 |
| 18 | 3 | Teo Fabi | 8 | Porsche Motorsports | March 88C/Porsche | 85 | 10,150 | water leak | 0 |
| 19 | 17 | Al Unser | 4 | Vince Granatelli | March 87C/Cosworth | 53 | 10,150 | gearbox | 0 |
| 20 | 11 | Arie Luijendijk | 7 | Dick Simon | Lola T88/00/Cosworth | 32 | 17,150 | halfshaft | 0 |
| 21 | 8 | Didier Theys | 22 | Dick Simon | Lola T88/00/Cosworth | 28 | 16,120 | engine | 0 |
| 22 | 25 | Dale Coyne | 19 | Dale Coyne | March 86C/Chevrolet | 25 | 11,120 | CV joint | 0 |
| 23 | 13 | Howdy Holmes | 21 | Alex Morales | March 88C/Cosworth | 21 | 16,120 | hose clamp | 0 |
| 24 | 12 | Derek Daly | 10 | Ray Neisewander | Lola T88/00/Cosworth | 0 | 16,120 | accident | 0 |
| 25 | 14 | John Andretti | 98 | Mike Curb | Lola T88/00/Cosworth | 0 | 16,120 | accident | 0 |
| Jackie Stewart | NBC | 0 | color commentary |