| Year | Team | Role |
|---|---|---|
| 2004 | Jordan-Ford | Test Driver |
| Minardi-Cosworth | Test Driver |
Career Results[]
| Complete Formula One Results | |||||||||||||||||||||||||
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| Year | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | Pts | Pos | |||||
| 2004 | 
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| * | TD | TD | TD | TD | TD | TD | TD | TD | TD | TD | TD | TD | TD | TD | TD | TD | TD | ||||||||
| Key | |||||
|---|---|---|---|---|---|
| Symbol | Meaning | Symbol | Meaning | ||
| 1st | Winner | Ret | Retired | ||
| 2nd | Podium finish | DSQ | Disqualified | ||
| 3rd | DNQ | Did not qualify | |||
| 5th | Points finish | DNPQ | Did not pre-qualify | ||
| 14th | Non-points finish | TD | Test driver | ||
| Italics | Fastest Lap | DNS | Did not start | ||
| 18th† | Classified finish (retired with >90% race distance) | NC | Non-classified finish (<90% race distance) | ||
| 4thP | Qualified for pole position | [+] More Symbols | |||
- Leinders was entered as Third Driver for 2004 Australia Grand Prix but was refused a superlicence until he completed the required mileage in an F1 car. He satisfied this requirement before the next race.