Clay Regazzoni
Gianclaudio Giuseppe Regazzoni
Birthplace: Mendrisio, Switzerland
Born: September 5, 1939
Died: December 15, 2006
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| Year | Series | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles | Points | Standing |
| 1977 | USAC | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 0 | 0 |
NR |
| Total | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 0 | 0 |
| Track Type | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Paved Oval | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 0 |
| Series | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| USAC | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 0 |
| Start # | Date | Track | Type | Series | Car # | Sponsor/Name | Chassis | Engine | Start | Finish | Laps | Status |
Points |
| 1 | 5/29/1977 | Indianapolis | PO | USAC | 38 | Theodore Racing | McLaren | Offy TC | 29 | 30 | 25 | Fuel leak | |
| --/ | 5/29/1977 | Indianapolis | PO | USAC | 39 | Theodore Racing | McLaren | Offy TC | -- | -- | -- | Wrecked practice | |