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