| series | Champcar current |
| race | Mexico City |
| year | 1981 |
| team | car | entry | driver | start | finish | chassis | engine | laps led | * | |
| Penske | 6 | Gould Charge | Rick Mears | | 6 | 1 | Penske PC-9B/81 | Cosworth DFX | 23 | |
| Longhorn | 8 | Viceroy | Al Unser | | 5 | 2 | Longhorn LR-02 [02] | Cosworth DFX | 2 | |
| Patrick | 20 | STP | Gordon Johncock | | 3 | 3 | Wildcat Mk.VIII | Cosworth DFX | ||
| Fletcher | 35 | Montgomery Ward | Bob Lazier | | 14 | 4 | March 81C [07] | Cosworth DFX | ||
| Penske | 7 | AB Dick Pacemaker | Bill Alsup | | 10 | 5 | Penske PC-9B/81 | Cosworth DFX | ||
| Morales | 5 | Alex Foods | Pancho Carter | | 12 | 6 | Penske PC-7/79 [011] | Cosworth DFX | ||
| Brayton | 21 | Zurn/Indeck | Mike Mosley | | 18 | 7 | Penske PC-6/78 [b] | Cosworth DFX | ||
| Menard | 28 | Menard's | Herm Johnson | | 9 | 8 | Eagle 81 [8104] | Chevy 355 V8 | ||
| All American Racers | 48 | Pepsi Challenger | Geoff Brabham | | 2 | 9 | Eagle 81 [8105] | Chevy Donovan 355 V8 | ||
| Kraco | 99 | Kraco | Dick Ferguson | | 13 | 10 | Penske PC-7/79 [l] | Cosworth DFX | ||
| H&R Racing | 16 | Provimi Veal | Tony Bettenhausen Jr. | | 22 | 11 | Phoenix 80 [a] | Cosworth DFX | ||
| Bill Tempero | 15 | O'Hanlon | Bill Tempero | | 24 | 12 | McLaren M24B [002] | Chevy 355 V8 | ||
| McElreath | 23 | McElreath Racing | Jim McElreath | | 20 | 13 | Eagle 74 [7407] | Offy Drake tc | ||
| Joe Hunt | 89 | Joe Hunt Magnetos | Phil Krueger | | 23 | 14 | Eagle 73 Fletcher | Chevy 355 V8 | ||
| Penske | 3 | Norton Spirit | Bobby Unser | | 1 | 15 | Penske PC-9B/81 | Cosworth DFX | 34 | |
| Hodgdon | 74 | National Engineering | Michael Chandler | | 8 | 16 | Penske PC-7/79 [m] | Cosworth DFX | ||
| Wysard | 34 | Wysard Racing | Hurley Haywood | | 15 | 17 | Eagle 80 [8001] | Cosworth DFX | ||
| Garza | 55 | Esso/Psachie-Garza | Josele Garza | | 11 | 18 | Penske PC-9/80 | Cosworth DFX | ||
| William R Compton | 38 | Tonco Trailer | Jerry Karl | | 17 | 19 | McLaren M16C Karl [C-2] | Chevy Donovan 355 V8 | ||
| Bignotti-Cotter | 2 | Texaco Star | Tom Sneva | | 4 | 20 | March 81C [05] | Cosworth DFX | ||
| Vern Schuppan | 33 | Thomas W. Barrett III | Vern Schuppan | | 21 | 21 | McLaren M24 [003] | Cosworth DFX | ||
| Machinists Union | 31 | Machinists Union | Larry Dickson | | 19 | 22 | Penske PC-7/79 [k] | Cosworth DFX | ||
| Brayton | 37 | Zurn/Indeck | Scott Brayton | | 16 | 23 | Penske PC-7/79 [n] | Cosworth DFX | ||
| Intercomp | 93 | Grupo-Acypsa | Michel Jourdain | | 26 | 24 | Finley PC-6 [4] | Offy Drake tc | ||
| Leader Card | 22 | Vermont American | Dick Simon | | 25 | 25 | Watson PC7 [1] | Cosworth DFX | ||
| Hall Racing | 1 | Pennzoil | Johnny Rutherford | | 7 | 26 | Chaparral 2K | Cosworth DFX | ||
| Rattlesnake | 42 | Steve Vuckovich Racing | Billy Vukovich | | 27 | 27 | Watson 77 [1] | Offy Drake tc | ||
| Bignotti-Cotter | 2 | Bignotti-Cotter | Tom Sneva | | DNS | Phoenix 80 March [005] | Cosworth DFX | |||
| Machinists Union | 67 | Machinists Union | Teddy Pilette | | DNS | IAM 001 [1] | Cosworth DFX | |||
| Rager | 66 | McCray Plastering | Orlo Trice | | DNS | Wildcat Mk.V [1] | Chevy 355 V8 |
