| series | Champcar complete |
| team | Ray Koch |
| year | race | car | entry | driver | start | finish | chassis | engine | laps led | * | |
| 1956 | Pikes Peak | 97 | Koch Harley-Davidson | Louie Unser | | 16 | 6 | unknown | Offy 110 sc | ||
| 1956 | Pikes Peak | 29 | Koch | Ted Foltz | | DNS | unknown | unknown | |||
| 1957 | Pikes Peak | 97 | Koch Harley-Davidson | Cal Niday | | 21 | 14 | unknown | Offy 110 sc | ||
| 1957 | Pikes Peak | 14 | Koch Harley-Davidson | Gordon Herring | | DNS | unknown | unknown | |||
| 1958 | Pikes Peak | 46 | Koch | Gordon Herring | | 5 | 9 | Pankratz D | Offy 220 | ||
| 1958 | Pikes Peak | 37 | Koch Harley-Davidson | Earl Kouba | | 13 | 12 | unknown | Offy 110 sc | ||
| 1959 | Pikes Peak | 46 | Koch Harley-Davidson | Earl Kouba | | 19 | 22 | Pankratz D | Offy 220 |
