| series | Champcar complete |
| race | Mosport |
| year | 1978 |
| team | car | entry | driver | start | finish | chassis | engine | laps led | * | |
| Interscope | 25 | Interscope | Danny Ongais | | 1 | 1 | Parnelli VPJ6B | Cosworth DFX | 66 | |
| Penske | 7 | Gould Charge | Rick Mears | | 7 | 2 | Penske PC-6/78 | Cosworth DFX | 7 | |
| Patrick | 40 | Foreman Industries | Steve Krisiloff | | 9 | 3 | Wildcat Mk.III [2] | DGS | ||
| Penske | 1 | Norton Spirit | Tom Sneva | | 8 | 4 | Penske PC-6/78 | Cosworth DFX | ||
| Polak Racing | 80 | Polak Racing | Larry Dickson | | 10 | 5 | Penske PC-5/77 [001] | Cosworth DFX | ||
| Grant King Racers | 98 | Oberdorfer | Gary Bettenhausen | | 12 | 6 | Kingfish 73 | Offy 159 tc | ||
| Dayton-Walther | 77 | Dayton-Walther | Salt Walther | | 15 | 7 | McLaren M24 [004] | Cosworth DFX | ||
| McLaren | 4 | 1st National Travel Check | Johnny Rutherford | | 6 | 8 | McLaren M24 | Cosworth DFX | ||
| Lindsey Hopkins | 16 | 1st National Travel Check | Johnny Parsons Jr | | 14 | 9 | Lightning Mk1/77 [c] | Offy Drake tc | ||
| Hucul Racing | 29 | Wendy's Hamburger | Cliff Hucul | | 17 | 10 | McLaren M16E [E-2] | Offy Drake tc | ||
| O'Connell | 6 | Sugaripe Prune | Wally Dallenbach | | 13 | 11 | McLaren M24 [001] | Cosworth DFX | ||
| Hall Racing | 2 | 1st National Travel Check | Al Unser | | 2 | 12 | Lola T500 [HU02] | Cosworth DFX | 3 | |
| Vatis Enterprises | 92 | McCord Auto Supply | Al Loquasto | | 16 | 13 | Eagle 72 Fleagle [7228] | Offy Drake tc | ||
| Leader Card | 24 | Thermo King | Tom Bigelow | | 18 | 14 | Eagle 74 [7403] | Offy 159 tc | ||
| Fletcher | 8 | Budweiser | Pancho Carter | | 11 | 15 | Lightning Mk1/77 [a] | Cosworth DFX | ||
| AJ Foyt | 14 | Gilmore/Citicorp | AJ Foyt | | 5 | 16 | Coyote IV [73-1] | Foyt V8 tc | ||
| Leader Card | 22 | Kent Oil | Tom Bagley | | 5 | 17 | Watson 77 [1] | Offy Drake tc | ||
| Frank Fiore | 87 | Machinists Union | Phil Threshie | | 19 | 18 | Rascar Atlanta 72 [2] | Offy Drake tc | ||
| All American Racers | 48 | ARCOgraphite | Bobby Unser | | 3 | 19 | Eagle 78 [7801] | Cosworth DFX | ||
| Gehlhausen | 19 | Hubler Chevrolet | Spike Gehlhausen | | DNS | Eagle 74 Fletcher | Offy Drake tc | |||
| Leader Card | 24 | Thermo King | Tom Bagley | | DNS | Eagle 74 [7403] | Offy 159 tc | |||
| Morales | 78 | Alex Foods | Mike Mosley | | DNS | Lightning Mk1/77 | Offy Drake tc | |||
| Patrick | 20 | North American Van Lines | Gordon Johncock | | DNS | Wildcat Mk.IV [1] | Offy DT160 V8 |
