John Mahler
John William Mahler
Birthplace: Alpha, Iowa![]()
Born: November 16, 1936
Died: February 6, 2024
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| Year | Series | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles | Points | Standing |
| 1970 | USAC | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 305 |
31 |
| 1971 | USAC | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 9 | 0 | 200 | 30 |
| 1972 | USAC | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 0 | 130 | 30 |
| 1973 | USAC | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 8 | 0 | 50 | 30 |
| 1974 | USAC | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| 1976 | USAC | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | NR |
| 1977 | USAC | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 14 | 0 | 0 | NR |
| 1978 | USAC | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | 10 | 43T |
| 1979 | CART | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 74 | 25 |
| Includes | USAC | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | NR |
| 1980 | CART | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 35 | 47 |
| Includes | USAC | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 6 | 52T |
| 1981 | CART | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 20 | 0 | 2 | 41T |
| 1981-82 | USAC | 0 | 2 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| 1983 | CART | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| Includes | USAC | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NR |
| Total | 39 | 16 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 812 |
| Track Type | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Paved Oval | 32 | 15 | 0 | 0 | 0 | 0 | 0 | 8 | 0 |
| Road Course | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 0 |
| Series | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| CART | 14 | 7 | 0 | 0 | 0 | 0 | 0 | 11 | 0 |
| USAC | 26 | 12 | 0 | 0 | 0 | 0 | 0 | 6 | 0 |
| Start # | Date | Track | Type | Series | Car # | Sponsor/Name | Chassis | Engine | Start | Finish | Laps | Status |
Points |
| 1 | 4/4/1970 | Sears Point | RC | USAC | 100 | Camanche Machine | Eagle | Chevy | 19 | 13 | 19 | Oil leak | |
| 2 | 4/26/1970 | Trenton 1 | PO | USAC | 100 | Bob Erikson Chevy | Eagle | Chevy | 21 | 16 | 77 | Engine | |
| -- | 6/7/1970 | Milwaukee 1 | PO | USAC | 100 | Mahler | Eagle | Chevy | -- | -- | -- | DNS, too slow | |
| 3 | 6/14/1970 | Langhorne | PO | USAC | 100 | Costa | Eagle | Chevy | 12 | 15 | 105 | Flagged | |
| 4 | 6/28/1970 | Castle Rock | RC | USAC | 100 | Eagle 100 | Eagle | Chevy | 9 | 8 | 49 | Flagged | 75 |
| 5 | 7/4/1970 | MIS | PO | USAC | 100 | Eagle 100 | Eagle | Chevy | 20 | 9 | 97 | Flagged | 80 |
| 6 | 7/26/1970 | IRP | RC | USAC | 100 | Eagle 100 | Eagle | Chevy | 15 | 6 | 57 | Flagged | 120 |
| 7 | 8/23/1970 | Milwaukee 2 | PO | USAC | 100 | Mahler Eagle 100 | Eagle | Chevy | 22 | 14 | 132 | Engine | |
| 8 | 10/3/1970 | Trenton 2 | PO | USAC | 100 | Eagle 100 | Eagle | Chevy | 22 | 12 | 160 | Flagged - rain | 30 |
| -- | 11/21/1970 | Phoenix 2 | PO | USAC | 100 | Eagle 100 | Eagle | Chevy | -- | -- | -- | DNS, too slow | |
| 9 | 2/28/1971 | Rafaela 1 | PO | USAC | 100 | Mahler Eagle 100 | Eagle | Chevy | 26 | 16 | 47 | Flagged | |
| 10 | 2/28/1971 | Rafaela 2 | PO | USAC | 100 | Mahler Eagle 100 | Eagle | Chevy | 16 | 16 | 46 | Flagged | |
| 11 | 4/25/1971 | Trenton 1 | PO | USAC | 100 | Mahler Eagle 100 | Eagle | Chevy | 19 | 23 | 14 | Oil leak | |
| -- | 5/29/1971 | Indianapolis | PO | USAC | 44 | TraveLodge Sleeper | Vollstedt | Ford TC | -- | -- | -- | Raced by Simon | |
| 12 | 7/3/1971 | Pocono | PO | USAC | 44 | TraveLodge-Florida Intl | Vollstedt | Ford TC | 30 | 23 | 92 | Wrecked | |
| --/ | 7/3/1971 | Pocono | PO | USAC | 75 | I. S. C. Florida International | McLaren | Offy TC | -- | -- | -- | Did not qualify | |
| 13 | 9/5/1971 | Ontario | PO | USAC | 75 | Wynn's Florida International | McLaren | Offy TC | 33 | 9 | 179 | Flagged | 200 |
| --/ | 9/5/1971 | Ontario | PO | USAC | 100 | Mahler | X | Offy TC | -- | -- | -- | On entry list | |
| 14 | 4/23/1972 | Trenton 1 | PO | USAC | 31 | Harbor Fuel Oil | McLaren | Offy TC | 17 | 8 | 115 | Flagged | 100 |
| 15 | 5/27/1972 | Indianapolis | PO | USAC | 31 | Harbor Fuel Oil | McLaren | Offy TC | 29 | 22 | 99 | Broken piston | |
| 16 | 6/4/1972 | Milwaukee 1 | PO | USAC | 31 | Harbor Fuel Oil | McLaren | Offy TC | 24 | 11 | 145 | Flagged | 30 |
| 17 | 7/29/1972 | Pocono | PO | USAC | 31 | Harbor Fuel Oil | McLaren | Offy TC | 10 | 27 | 34 | Broken connecting rod | |
| 18 | 8/13/1972 | Milwaukee 2 | PO | USAC | 31 | Harbor Fuel Oil | McLaren | Offy TC | 22 | 25 | 1 | Ignition | |
| 19 | 9/3/1972 | Ontario | PO | USAC | 68 | Roy Woods Racing | McLaren | Offy TC | 15 | 18 | 134 | Wrecked | |
| --/ | 9/3/1972 | Ontario | PO | USAC | 31 | Harbor Fuel Oil | McLaren | Offy TC | -- | -- | -- | Drove #68 instead | |
| -- | 5/30/1973 | Indianapolis | PO | USAC | 35 | Norris Industries | Eagle | Offy TC | -- | -- | -- | Did not qualify | |
| 20 | 8/26/1973 | Ontario H1 | PO | USAC | 74 | Carling | Eagle | Offy TC | 12 | 8 | 38 | Flagged | 50 |
| 21 | 9/2/1973 | Ontario | PO | USAC | 74 | Carling | Eagle | Offy TC | 30 | 26 | 33 | Wrecked | |
| -- | 5/26/1974 | Indianapolis | PO | USAC | 69 | Woods | Eagle | Offy TC | -- | -- | -- | Did not qualify | |
| --/ | 5/26/1974 | Indianapolis | PO | USAC | 74 | Woods | Eagle | Offy TC | -- | -- | -- | Did not qualify | |
| -- | 5/30/1976 | Indianapolis | PO | USAC | 91 | Spirit of Indiana | Eagle | Offy TC | -- | -- | -- | Did not qualify | |
| --/ | 5/30/1976 | Indianapolis | PO | USAC | 19 | Spirit of Indiana | McLaren | Offy TC | -- | -- | -- | Did not qualify | |
| --/ | 5/30/1976 | Indianapolis | PO | USAC | 92 | 1st National Travel Check | Eagle | Offy TC | -- | -- | -- | Did not qualify | |
| 22 | 9/5/1976 | Ontario | PO | USAC | 76 | Webster Racing | Webster | Offy TC | 25 | 25 | 63 | Wrecked turn 1 | |
| 23 | 5/29/1977 | Indianapolis | PO | USAC | 42 | Mergard Racing | Eagle | Offy TC | 31 | 14 | 157 | Flagged | |
| 24 | 6/26/1977 | Pocono | PO | USAC | 42 | Mergard Racing | Eagle | Offy TC | 33 | 14 | 130 | Stalled | |
| -- | 7/17/1977 | MIS 1 | PO | USAC | 42 | Mergard Racing | Eagle | Offy TC | -- | -- | -- | Burned piston practice | |
| 25 | 5/28/1978 | Indianapolis | PO | USAC | 39 | Tibon | Eagle | Offy TC | 17 | 26 | 58 | Broken timing gear | 10 |
| 26 | 3/11/1979 | Phoenix 1 | PO | CART | 92 | Sport Magazine | Eagle | Offy TC | 16 | 19 | 12 | Broken piston | 6 |
| -- | 4/22/1979 | Atlanta 1 | PO | CART | 92 | Sport Magazine | Eagle | Offy TC | -- | -- | -- | Wrecked practice | |
| 27 | 5/28/1979 | Indianapolis | PO | USAC/CART | 92 | Sport Magazine | Eagle | Offy TC | 32 | 25 | 66 | Broken fuel pump | 10 |
| 28 | 6/10/1979 | Trenton 1 | PO | CART | 92 | Intercomp | Bea | DGS | 15 | 11 | 63 | Flagged | 20 |
| 29 | 6/10/1979 | Trenton 2 | PO | CART | 92 | Intercomp | Bea | DGS | 11 | 11 | 60 | Flagged | 20 |
| 30 | 7/15/1979 | MIS 1 | PO | CART | 92 | Sport Magazine | X | Offy TC | 17 | 12 | 60 | Flagged | 13 |
| 31 | 7/15/1979 | MIS 2 | PO | CART | 92 | Sport Magazine | X | Offy TC | 12 | 15 | 20 | Engine | 5 |
| -- | 8/5/1979 | Watkins Glen | RC | CART | 92 | Intercomp/Sport Magazine | Eagle 72 | Offy TC | -- | -- | -- | Wrecked practice | |
| -- | 5/25/1980 | Indianapolis | PO | USAC/CART | 91 | Intercomp Racing | Finley | Offy TC | -- | -- | -- | Did not qualify | |
| -- | 6/8/1980 | Milwaukee 1 | PO | CART/USAC | 92 | Intercomp Racing | Eagle | Offy | -- | -- | -- | DNS, too slow | |
| 32 | 7/13/1980 | Mid-Ohio | RC | CART/USAC | 92 | Parts Washer Service | Penske PC-6 | Offy | 21 | 19 | 8 | Block | 6 |
| 33 | 8/3/1980 | Watkins Glen | RC | CART | 92 | Parts Washer Service | Penske PC-6 | Offy | 16 | 14 | 54 | Turbo | 8 |
| 34 | 8/10/1980 | Milwaukee 2 | PO | CART | 92 | WWEG | Penske PC-6 | Offy | 24 | 18 | 112 | Cylinder | 8 |
| 35 | 8/31/1980 | Ontario 2 | PO | CART | 92 | Parts Washer Service | Penske PC-6 | Offy | 35 | 30 | 24 | Wrecked | 5 |
| 36 | 10/26/1980 | Mexico City | RC | CART | 92 | Ovaciones | Penske PC-6 | Offy | 22 | 13 | 23 | Engine | 8 |
| -- | 5/24/1981 | Indianapolis | PO | USAC | 92 | Duke Racing | Penske PC-6 | Offy TC | -- | -- | -- | Did not qualify | |
| --/ | 5/24/1981 | Indianapolis | PO | USAC | 93 | Duke Racing | Eagle 74 | Offy TC | -- | -- | -- | Did not qualify | |
| 37 | 6/7/1981 | Milwaukee 1 | PO | CART | 92 | Duke Racing | Penske PC-6 | Offy TC | 24 | 25 | 15 | Ignition | |
| -- | 7/25/1981 | MIS 1 | PO | CART | 92 | Duke Racing | Penske PC-6 | Offy TC | -- | -- | -- | DNS, too slow | |
| 38 | 8/30/1981 | Riverside | RC | CART | 92 | Trench Shoring | Penske PC-7 | Offy TC | 28 | 27 | 8 | Engine | |
| 39 | 9/5/1981 | Milwaukee 2 | PO | CART | 92 | Duke Racing | Penske PC-6 | Offy TC | 17 | 20 | 117 | Broken timing gear | 2 |
| -- | 10/31/1981 | Phoenix 2 | PO | CART | 93 | Duke Racing | Penske PC-6 | Chevy | -- | -- | -- | Did not qualify | |
| -- | 5/30/1982 | Indianapolis | PO | USAC | 92 | PWS Racing | Penske PC-7 | Offy TC | -- | -- | -- | Wrecked qualifying | |
| -- | 5/29/1983 | Indianapolis | PO | USAC/CART | 92 | Intercomp | Lion | Chevy | -- | -- | -- | DNS, too slow | |