Masten Gregory
Birthplace: Kansas City, Missouri
Born: February 29, 1932
Died: November 8, 1985
| Driver sponsorship available. This one's yours for $10. |
| Year | Series | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles | Points | Standing |
| 1958 | USAC | Non | points | races | only | 0 | NR | |||||
| 1963 | USAC | 0 | 2 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| 1964 | USAC | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| 1965 | USAC | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 0 | NR |
| 1966 | USAC | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| 1967 | USAC | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| 1968 | USAC | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| Total | 1 | 6 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 0 |
| Track Type | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Paved Oval | 1 | 6 | 0 | 0 | 0 | 0 | 0 | 23 | 0 |
| Series | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| USAC | 1 | 6 | 0 | 0 | 0 | 0 | 0 | 23 | 0 |
| Start # | Date | Track | Type | Series | Car # | Sponsor/Name | Chassis | Engine | Start | Finish | Laps | Status |
Points |
| NC | 6/29/1958 | Monza 1 | PO | USAC | 4 | Jaguar | Jaguar | Jaguar | 16 | 13 | 55 | Flagged | |
| NC | 6/29/1958 | Monza 3 | PO | USAC | 4 | Jaguar | Jaguar | Jaguar | 11 | 8 | 44 | Out | |
| -- | 5/30/1963 | Indianapolis | PO | USAC | 82 | MT Harvey Aluminum | Thompson RE | Chevy | -- | -- | -- | DNS, too slow | |
| -- | 6/9/1963 | Milwaukee 1 | PO | USAC | 81 | MT Harvey Aluminum | Thompson RE | Chevy | -- | -- | -- | Did not qualify | |
| -- | 5/30/1964 | Indianapolis | PO | USAC | 82 | Mickey Thompson Allstate | Thompson63RE | Ford | -- | -- | -- | DNS, too slow | |
| 1 | 5/31/1965 | Indianapolis | PO | USAC | 41 | George Bryant & Staff | BRP RE | Ford | 31 | 23 | 59 | Lost oil pressure | |
| -- | 5/30/1966 | Indianapolis | PO | USAC | 63 | MG Liquid Suspension | Huffaker | Chevy | -- | -- | -- | Did not qualify | |
| --/ | 5/30/1966 | Indianapolis | PO | USAC | 78 | G. C. Murphy | Gerhardt | Ford | -- | -- | -- | Did not qualify | |
| -- | 5/30/1967 | Indianapolis | PO | USAC | 11 | Autoteria Car Wash | Horton | Ford | -- | -- | -- | Did not qualify | |
| --/ | 5/30/1967 | Indianapolis | PO | USAC | 20 | Wagner Lockheed Brake Fluid | Mongoose | Ford | -- | -- | -- | Did not qualify | |
| -- | 5/30/1968 | Indianapolis | PO | USAC | 95 | Repco-Brabham | Brabham | Repco | -- | -- | -- | Did not qualify | |
| --/ | 5/30/1968 | Indianapolis | PO | USAC | 28 | George R. Bryant | Cheetah | Ford | -- | -- | -- | Did not qualify | |