Leon Duray Sirois
Birthplace: Shelby, Indiana
Born: April 16, 1935
Died:
Jigger Sirois
Leon Duray Sirois
Birthplace: Shelby, Indiana
Born: April 16, 1935
Died:
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| Year | Series | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles | Points | Standing |
| 1967 | USAC | 0 | 5 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 |
NR |
| 1968 | USAC | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 75 | 48 |
| 1969 | USAC | 4 | 3 | 0 | 0 | 0 | 0 | 1 | 0 | 150 | 38 | |
| 1970 | USAC | 0 | 3 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| 1971 | USAC | 0 | 2 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| 1972 | USAC | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| 1973 | USAC | 2 | 4 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 20 | 36 |
| 1974 | USAC | 0 | 2 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| 1975 | USAC | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| Total | 10 | 22 | 0 | 0 | 0 | 0 | 1 | 0 | 245 |
| Track Type | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Dirt Oval | 1 | 4 | 0 | 0 | 0 | 0 | 0 | 16 | 0 |
| Paved Oval | 9 | 18 | 0 | 0 | 0 | 0 | 1 | 0 |
| Series | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| USAC | 10 | 22 | 0 | 0 | 0 | 0 | 1 | 0 |
| Start # | Date | Track | Type | Series | Car # | Sponsor/Name | Chassis | Engine | Start | Finish | Laps | Status |
Points |
| -- | 6/4/1967 | Milwaukee 1 | PO | USAC | 50 | Cavanaugh | Kurtis FE | Chevy | -- | -- | -- | Wrecked practice | |
| -- | 8/19/1967 | Springfield | DO | USAC | 50 | Cavanaugh | Kurtis FE | Chevy | -- | -- | -- | DNS, too slow | |
| -- | 9/4/1967 | DuQuoin | DO | USAC | 50 | Cavanaugh | Kurtis FE | Chevy | -- | -- | -- | DNS, too slow | |
| -- | 9/9/1967 | ISF | DO | USAC | 50 | Cavanaugh | Kurtis FE | Chevy | -- | -- | -- | Did not qualify | |
| -- | 9/24/1967 | Trenton 2 | PO | USAC | 50 | Cavanaugh | Kurtis FE | Chevy | -- | -- | -- | Did not start | |
| 1 | 8/17/1968 | Springfield | DO | USAC | 108 | Cavanaugh V8 | Kurtis FE | Chevy | 17 | 16 | 18 | Out | |
| 2 | 8/18/1968 | Milwaukee 2 | PO | USAC | 81 | Central Excavating | Gerhardt | Offy TC | 22 | 21 | 62 | Broken suspension | |
| -- | 9/2/1968 | DuQuoin | DO | USAC | X | X | X | X | -- | -- | -- | Did not qualify | |
| 3 | 9/22/1968 | Trenton 2 | PO | USAC | 81 | Central Excavating | Gerhardt | Offy TC | 19 | 25 | 14 | Clutch | |
| 4 | 10/13/1968 | MIS | PO | USAC | 81 | Central Excavating | Gerhardt | Offy TC | 12 | 10 | 113 | Broken transmission | 75 |
| 5 | 3/30/1969 | Phoenix 1 | PO | USAC | 14 | Quaker State Oil | Gerhardt | Offy TC | 14 | 5 | 133 | Spun out | 150 |
| 6 | 4/13/1969 | Hanford | PO | USAC | 14 | Quaker State Oil | Gerhardt | Offy TC | 16 | 18 | 63 | Wrecked | |
| -- | 5/30/1969 | Indianapolis | PO | USAC | 14 | Quaker State Oil | Gerhardt | Offy TC | -- | -- | -- | Did not qualify | |
| -- | 6/8/1969 | Milwaukee 1 | PO | USAC | 14 | Quaker State Oil | Gerhardt | Offy TC | -- | -- | -- | DNS, too slow | |
| -- | 6/15/1969 | Langhorne | PO | USAC | 14 | Quaker State Oil | Gerhardt | Offy TC | -- | -- | -- | Driven by Harkey | |
| 7 | 9/21/1969 | Trenton 2 | PO | USAC | 11 | Valvoline | Finley | Offy TC | 22 | 25 | 16 | Wrecked | |
| 8 | 11/16/1969 | Phoenix 2 | PO | USAC | 11 | Valvoline | Finley | Offy TC | 21 | 14 | 153 | Engine | |
| -- | 5/30/1970 | Indianapolis | PO | USAC | 54 | City of Memphis | Glen Bryant | Pratt & Whitney Turbine | -- | -- | -- | DNS, too slow | |
| --/ | 5/30/1970 | Indianapolis | PO | USAC | 72 | Hustlin' Hoosier | X | Offy TC | -- | -- | -- | Wrecked practice | |
| -- | 6/14/1970 | Langhorne | PO | USAC | 54 | Two Jacks | Gerhardt | Pratt & Whitney Turbine | -- | -- | -- | Did not appear | |
| -- | 9/6/1970 | Ontario | PO | USAC | 94 | Sugaripe Prune | Brabham | Offy TC | -- | -- | -- | Wrecked practice | |
| -- | 5/29/1971 | Indianapolis | PO | USAC | 65 | Travelon Trailer | Gerhardt 65 | Offy TC | -- | -- | -- | Did not qualify | |
| -- | 9/5/1971 | Ontario | PO | USAC | 65 | Travelon Trailer | Gerhardt 65 | Offy TC | -- | -- | -- | Did not appear | |
| -- | 5/27/1972 | Indianapolis | PO | USAC | 50 | Roughneck Drilling | Navarro | AMC | -- | -- | -- | Did not qualify | |
| --/ | 5/27/1972 | Indianapolis | PO | USAC | 97 | Vivitar | Eagle | Offy TC | -- | -- | -- | Did not qualify | |
| --/ | 5/27/1972 | Indianapolis | PO | USAC | 91 | Steed | Curtis | Offy TC | -- | -- | -- | Did not qualify | |
| --/ | 5/27/1972 | Indianapolis | PO | USAC | 20 | STP | McNamara | X | -- | -- | -- | Did not qualify | |
| -- | 5/30/1973 | Indianapolis | PO | USAC | 47 | Bruce Crower | Eagle | Dodge | -- | -- | -- | Did not qualify | |
| -- | 6/10/1973 | Milwaukee 1 | PO | USAC | 47 | Bruce Crower | Eagle | Dodge | -- | -- | -- | Withdrew | |
| 9 | 8/12/1973 | Milwaukee 2 | PO | USAC | 51 | Minnesota Serendipity | Mongoose | Foyt TC | 25 | 12 | 181 | Flagged |
20 |
| -- | 9/16/1973 | MIS 2 | PO | USAC | 51 | Minnesota Serendipity | Mongoose | Foyt TC | -- | -- | -- | Did not start | |
| 10 | 9/16/1973 | MIS 3 | PO | USAC | 51 | Minnesota Serendipity | Mongoose | Foyt TC | 16 | 13 | 46 | Flagged | |
| -- | 9/23/1973 | Trenton 3 | PO | USAC | 51 | Minnesota Serendipity | Mongoose | Foyt TC | -- | -- | -- | Broken piston, consi | |
| -- | 3/10/1974 | Ontario | PO | USAC | 53 | Minnesota Serendipity | Atlanta | Foyt | -- | -- | -- | Driven by J. Cannon | |
| -- | 5/26/1974 | Indianapolis | PO | USAC | 25 | Adams Automotive | Cicada | Offy TC | -- | -- | -- | DNS, too slow | |
| -- | 5/25/1975 | Indianapolis | PO | USAC | 52 | Adams Automotive/Hawthorn | Eagle | Offy TC | -- | -- | -- | Did not qualify | |