| series | Champcar complete |
| race | Ontario 500 |
| year | 1975 |
| team | car | entry | driver | start | finish | chassis | engine | laps led | * | |
| AJ Foyt | 14 | Gilmore Racing | AJ Foyt | | 1 | 1 | Coyote IV [73-1] | Foyt V8 tc | 187 | |
| All American Racers | 48 | Jorgensen Steel | Bobby Unser | | 2 | 2 | Eagle 74 [7405] | Offy 159 tc | 9 | |
| Leader Card | 98 | Lodestar | Steve Krisiloff | | 7 | 3 | Eagle 74 [7417] | Offy Drake tc | ||
| Fletcher | 55 | Cobre Tire | Lee Kunzman | | 19 | 4 | Eagle 72 [7214] | Offy 159 tc | ||
| Automotive Technology Inc | 89 | Automotive Technology Inc. | John Martin | | 12 | 5 | McLaren M16B [B-3] | Offy 159 tc | ||
| Penske | 68 | Norton Spirit | Tom Sneva | | 14 | 6 | McLaren M16C/D [C-4] | Offy Drake tc | ||
| Loquasto Racing | 86 | Frostie Root Beer | Al Loquasto | | 24 | 7 | McLaren M16B [B-4] | Offy 159 tc | ||
| Dayton-Walther | 77 | Dayton-Walther | Salt Walther | | 16 | 8 | McLaren M16C/D [C/D-6] | Offy Drake tc | ||
| Rasmussen | 58 | Rasmussen Racing | Eldon Rasmussen | | 25 | 9 | Rascar Atlanta 72 [1] | Foyt V8 tc | ||
| Patrick | 40 | Sinmast | Wally Dallenbach | | 4 | 10 | Eagle 74 [7403] | Offy 159 tc | ||
| O'Connell | 12 | Sugaripe Prune | Mike Mosley | | 15 | 11 | Eagle 74 [7407] | Offy Drake tc | ||
| Fred Carrillo | 73 | Spirit of Orange County | Jerry Grant | | 28 | 12 | Eagle 73 [7306] | Offy 159 tc | ||
| Lindsey Hopkins | 15 | Silver Floss Sauerkraut | Roger McCluskey | | 13 | 13 | Riley Rocket [1] | Offy Drake tc | ||
| Gerhardt | 45 | Thermo King | Gary Bettenhausen | | 26 | 14 | Eagle 72 [7216] | Offy Drake tc | ||
| Patrick | 20 | Sinmast | Gordon Johncock | | 10 | 15 | Wildcat Mk.I [1] | DGS | ||
| Vollstedt | 27 | T.H. Wilson Development | Tom Bigelow | | 22 | 16 | Vollstedt 73 [13] | Offy 159 tc | ||
| McLaren | 2 | Gatorade | Johnny Rutherford | | 5 | 17 | McLaren M16E [E-1] | Offy Drake tc | 4 | |
| Bruce Crower | 23 | Crower Cams | Jim McElreath | | 32 | 18 | Eagle 72 [7205] | Chevy 355 V8 | ||
| Fletcher | 11 | Cobre Tire | Pancho Carter | | 6 | 19 | Eagle 74 | Offy Drake tc | ||
| Leader Card | 97 | Lodestar | George Snider | | 31 | 20 | Eagle 72 [7221] | Offy 159 tc | ||
| Morales | 78 | Alex Foods | Jimmy Caruthers | | 9 | 21 | Eagle 72 [7226] | Offy 159 tc | ||
| Brayton | 29 | Eisenhour-Brayton | Lee Brayton | | 27 | 22 | Coyote I [70-1] | Foyt V8 tc | ||
| Fletcher | 6 | Cobre Tire | Billy Vukovich | | 8 | 23 | Eagle 74 | Offy Drake tc | ||
| Dick Simon | 44 | Dick Simon Racing | Dick Simon | | 23 | 24 | Eagle 72 [7212] | Foyt V8 tc | ||
| Vatis Enterprises | 94 | Vatis Enterprises | Johnny Parsons Jr | | 17 | 25 | Finley 73 [3] | Offy 159 tc | ||
| Vel's Parnelli Jones | 4 | Viceroy | Al Unser | | 3 | 26 | Eagle 74 | Offy 159 tc | ||
| AJ Foyt | 10 | Gilmore Racing | Rick Muther | | 29 | 27 | Coyote IV [73-2] | Foyt V8 tc | ||
| Vel's Parnelli Jones | 21 | Viceroy | Mario Andretti | | 18 | 28 | Eagle 74 [7406] | Offy 159 tc | ||
| Webster Racing | 76 | Webster Racing | Billy Scott | | 20 | 29 | Eagle 72 [7202] | Offy 159 tc | ||
| Joe Hunt | 99 | Joe Hunt Magnetos | Bob Harkey | | 30 | 30 | Gerhardt 68 [a] | Offy 159 tc | ||
| Dayton-Walther | 33 | Dayton-Walther | Larry McCoy | | 33 | 31 | McLaren M16C [C-2] | Offy Drake tc | ||
| Penske | 16 | CAM2 | Bobby Allison | | 11 | 32 | McLaren M16C/D [C-3] | Offy Drake tc | ||
| Gehlhausen | 38 | Midwest Manufacturing | Jerry Karl | | 21 | 33 | Kingfish 72 [5] | Offy 159 tc | ||
| AJ Foyt | 10 | Gilmore Racing | AJ Foyt | | DNS | Coyote IV [73-2] | Foyt V8 tc | |||
| Dayton-Walther | 33 | Dayton-Walther | Salt Walther | | DNS | McLaren M16C [C-2] | Offy Drake tc | |||
| Vel's Parnelli Jones | 51 | Viceroy | Al Unser | | DNS | Eagle 74 | Offy 159 tc |
