| | Heat | Dash | B Feature | A Feature |
|---|
|
|---|
| 7/13/1968 | Nazareth Speedway - Nazareth, PA Silver Crown: USAC Silver Crown | Results | | Mario Andretti (Silver Crown) | - | - | - | 2nd |
|
| 8/17/1968 | Illinois State Fairgrounds - Springfield, IL Silver Crown: USAC Silver Crown | Results | | Mario Andretti (Silver Crown) | - | - | - | 18th |
|
| 9/2/1968 | DuQuoin State Fairgrounds - 1 Mile - DU QUOIN, IL Silver Crown: USAC Silver Crown | Results | | Mario Andretti (Silver Crown) | - | - | - | 1st |
|
| 9/9/1968 | Indiana State Fairgrounds - Indianapolis, IN Silver Crown: USAC Silver Crown | Results | | Mario Andretti (Silver Crown) | - | - | - | 2nd |
|
| 9/29/1968 | California State Fairgrounds - Sacramento, CA Silver Crown: USAC Silver Crown | Results | | Mario Andretti (Silver Crown) | - | - | - | 4th |
|