| series | Champcar complete |
| race | Ontario 500 |
| year | 1971 |
| team | car | entry | driver | start | finish | chassis | engine | laps led | * | |
| Vel's Parnelli Jones | 15 | Samsonite | Joe Leonard | | 11 | 1 | Parnelli Colt 71 [115] | Ford DOHC tc | 40 | |
| Brawner-McGee | 8 | Gilmore Racing | Art Pollard | | 13 | 2 | Scorpion 70 | Ford DOHC tc | ||
| Gerhardt | 16 | Thermo King | Gary Bettenhausen | | 27 | 3 | Gerhardt 70 [a] | Offy 159 tc | ||
| Gene White Racing | 12 | Utah Stars | Lloyd Ruby | | 14 | 4 | Mongoose 70 [7] | Ford DOHC tc | ||
| STP Corporation | 20 | STP | Steve Krisiloff | | 15 | 5 | Kingfish 71 [2] | Offy 159 tc | ||
| Shelby-Dowd | 92 | Norris Industries | Jim Malloy | | 18 | 6 | Eagle 69 [701] | Ford DOHC tc | ||
| McLaren | 86 | McLaren Cars | Peter Revson | | 3 | 7 | McLaren M16A [A-2] | Offy 159 tc | ||
| Patrick | 3 | Patrick Petroleum | Jim McElreath | | 12 | 8 | Eagle 67 [214] | Offy 159 tc | ||
| John Mahler | 75 | Wynn's | John Mahler | | 33 | 9 | McLaren M15A [A-1] | Offy 159 tc | ||
| O'Connell | 32 | Sugaripe Prune | Billy Vukovich | | 25 | 10 | Hayhoe 68 [a] | Offy 159 tc | ||
| Fejer Brothers | 70 | Fejer Brothers | George Eaton | | 31 | 11 | Parnelli Colt 70 [002] | Ford DOHC tc | ||
| All American Racers | 42 | Olsonite | Swede Savage | | 4 | 12 | Eagle 70 [805] | Offy 159 tc | ||
| STP Corporation | 40 | STP | Larry Dickson | | 26 | 13 | Kingfish 70 [1] | Offy 159 tc | ||
| Gene White Racing | 21 | Gene White Firestone | Cale Yarborough | | 30 | 14 | Mongoose 70 [8] | Ford DOHC tc | ||
| Vel's Parnelli Jones | 1 | Johnny Lightning 500 | Al Unser | | 6 | 15 | Parnelli Colt 70 [001] | Offy 159 tc | 84 | |
| AJ Foyt | 9 | ITT-Thompson | AJ Foyt | | 9 | 16 | Coyote II [71-1] | Ford DOHC tc | 7 | |
| O'Connell | 58 | Sugaripe Prune | Bud Tingelstad | | 22 | 17 | Hayhoe 68 [b] | Offy 159 tc | ||
| Penske | 66 | Sunoco | Mark Donohue | | 1 | 18 | McLaren M16A [A-4] | Offy 159 tc | 49 | |
| Gerhardt | 46 | Thermo King | Jimmy Caruthers | | 16 | 19 | Gerhardt 70 [b] | Offy 159 tc | ||
| Vollstedt | 7 | Vollstedt Racing | Denny Zimmerman | | 19 | 20 | McLaren M15A [A-3] | Offy 159 tc | ||
| All American Racers | 2 | Olsonite | Bobby Unser | | 2 | 21 | Eagle 71 [7101] | Offy 159 tc | 20 | |
| Dick Simon | 10 | TraveLodge | Dick Simon | | 28 | 22 | Peat-Lola T150 [1] | Ford DOHC tc | ||
| Lindsey Hopkins | 22 | Sprite | Wally Dallenbach | | 17 | 23 | Kuzma 70 [1] | Offy 159 tc | ||
| AJ Foyt | 84 | Purolator | Donnie Allison | | 29 | 24 | Coyote I [69-2] | Ford DOHC tc | ||
| Lindsey Hopkins | 23 | Sprite | Mel Kenyon | | 10 | 25 | Coyote I [70-2] | Ford DOHC tc | ||
| Patrick | 18 | Patrick Petroleum | Johnny Rutherford | | 5 | 26 | Brabham BT32 [1] | Offy 159 tc | ||
| McLaren | 85 | McLaren Cars | Gordon Johncock | | 7 | 27 | McLaren M16A [A-3] | Offy 159 tc | ||
| Lindsey Hopkins | 6 | Sprite | Roger McCluskey | | 21 | 28 | Kuzma 70 [2] | Ford DOHC tc | ||
| Myron Caves | 37 | Caves Buick | Bruce Walkup | | 32 | 29 | Gerhardt 69 [d] | Offy 159 tc | ||
| Federal Engineering | 31 | Federal Engineering | Greg Weld | | 23 | 30 | Gerhardt 68 [f] | Offy 159 tc | ||
| Vatis Enterprises | 95 | City of Terre Haute | Carl Williams | | 24 | 31 | Eagle 66 [201] | Offy 159 tc | ||
| Leader Card | 4 | G.C. Murphy | George Snider | | 20 | 32 | Eagle 68 [402] | Offy 159 tc | ||
| STP Corporation | 5 | STP | Mario Andretti | | 8 | 33 | McNamara 501 [4] | Ford DOHC tc | ||
| Agajanian | 97 | King O'Lawn | John Martin | | DNS | Lola T153 [SL-153-06] | Ford DOHC tc | |||
| Agajanian | 98 | King O'Lawn | Sam Sessions | | DNS | Lola T150 [SL-150-02] | Ford DOHC tc | |||
| Bill Simpson | 28 | Wynn's | Bill Simpson | | DNS | Eagle 67 [212] | Offy 159 tc | |||
| Dick Simon | 44 | TraveLodge | John Martin | | DNS | Lola T150 [SL-150-03] | Ford DOHC tc | 15 | ||
| Dick Simon | 44 | TraveLodge | Dick Simon | | DNS | Lola T150 [SL-150-03] | Ford DOHC tc | 15 | ||
| Ernest Ruiz | 65 | Travelon Trailer | Jigger Sirois | | DNS | Gerhardt 65 [001] | Offy 159 tc | |||
| Hurtubise | 56 | Miller High Life | Jim Hurtubise | | DNS | Mallard 71 FE [IV] | Offy 159 tc | |||
| Joe Hunt | 99 | Joe Hunt Magnetos | Bob Harkey | | DNS | Gerhardt 68 [d] | Offy 159 tc | |||
| Leader Card | 80 | G.C. Murphy | Bill Puterbaugh | | DNS | Eagle 67 [210] | Offy 159 tc | |||
| McLaren | 85 | McLaren Cars | Denis Hulme | | DNS | McLaren M16A [A-3] | Offy 159 tc | |||
| Navarro | 50 | Navarro Engineering | Les Scott | | DNS | Watson 64 [1] | AMC Rambler 199 S6 tc | |||
| Navarro | 50 | Navarro Engineering | John Cannon | | DNS | Watson 64 [1] | AMC Rambler 199 S6 tc | |||
| STP Corporation | 60 | STP | John Cannon | | DNS | McNamara 500 [3] | Plymouth Weslake 318 V8 | |||
| Vollstedt | 7 | Vollstedt Racing | Gordon Johncock | | DNS | McLaren M15A [A-3] | Offy 159 tc | |||
| Vollstedt | 17 | Vollstedt Racing | Jerry Grant | | DNS | Vollstedt 67 [B] | Ford DOHC tc | |||
| Vollstedt | 17 | Vollstedt Racing | George Follmer | | DNS | Vollstedt 67 [B] | Ford DOHC tc | |||
| Vollstedt | 17 | Vollstedt Racing | Denny Zimmerman | | DNS | Vollstedt 67 [B] | Ford DOHC tc | |||
| Webster Racing | 76 | Webster Racing | Ronnie Bucknum | | DNS | Eisert 69 [6] | Ford Weslake Mk.IV 318 V8 |
