Dennis C. Cook
Birthplace: Sidney, Ohio
Born: November 22, 1943
Died: October 8, 2022
Duke Cook
Dennis C. Cook
Birthplace: Sidney, Ohio
Born: November 22, 1943
Died: October 8, 2022
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| Year | Series | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles | Points | Standing |
| 1977 | USAC | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| 1981-82 | USAC | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 28 | 0 | 0 | NR |
| 1982-83 | USAC | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 22 | 0 | 0 | NR |
| Total | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 22 | 0 | 0 |
| Track Type | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Dirt Oval | 1 | 4 | 0 | 0 | 0 | 0 | 0 | 22 | 0 |
| Paved Oval | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 28 | 0 |
| Series | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| USAC | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 22 | 0 |
| Start # | Date | Track | Type | Series | Car # | Sponsor/Name | Chassis | Engine | Start | Finish | Laps | Status |
Points |
| -- | 5/30/1977 | Indianapolis | PO | USAC | 42 | Mergard 20th Century | Eagle | Offy TC | -- | -- | -- | Driven by L. Cannon | |
| 1 | 6/21/1981 | Pocono | PO | USAC | 25 | Double A Racing | X | Chevy | 25 | 28 | 6 | Engine | |
| -- | 8/15/1981 | Springfield | DO | USAC | 25 | Double A Racing | X | X | -- | -- | -- | Did not qualify | |
| -- | 8/30/1981 | DuQuoin | DO | USAC | 25 | Double A Racing | X | X | -- | -- | -- | Did not advance from qualifying race | |
| -- | 9/12/1981 | ISF | DO | USAC | 25 | Double A Racing | X | X | -- | -- | -- | Did not start qualifying race | |
| -- | 8/14/1982 | Springfield | DO | USAC | 14 | Halibrand Performance Centers | Osborne | X | -- | -- | -- | Did not advance from qualifying race | |
| 2 | 9/6/1982 | DuQuoin | DO | USAC | 14 | Halibrand Performance Centers | X | X | 23 | 22 | 19 | Handling | |