2008
| | IndyCar Series | | Position: 3 (513 points) | 17 races. 1 win. 2 pole positions. 7 podiums. 3 fastest laps.
| | Team: Andretti Green Racing | | Car: Dallara IR4 (Honda) |
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| | | American Le Mans Series LMP2 | | Position: 18 (14 points) | 1 race. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Andretti Green Racing | | Car: Acura ARX-01b |
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| | | Nikon Indy 300 | |
| Race position: no position. | | Team: Andretti Green Racing | | Car: Dallara IR4 (Honda) |
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2007
| | IRL IndyCar Series | | Position: 3 (576 points) | 17 races. 5 wins. 2 pole positions. 7 podiums. 2 fastest laps.
| | Team: Andretti Green Racing |
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| | | American Le Mans Series LMP2 | | Position: 10 (39 points) | 3 races. 1 win. 0 pole positions. 1 podium. 0 fastest laps.
| | Team: Andretti Green Racing | | Car: Acura ARX01 a |
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| | | Formula Nippon | | Position: no position | 1 race. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Kanaan Racing | | Car: Lola FN06 (Honda) |
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2006
| | IRL IndyCar Series | | Position: 6 (384 points) | 14 races. 1 win. 0 pole positions. 3 podiums. 2 fastest laps.
| | Team: Andretti Green Racing |
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2005
| | IRL IndyCar Series | | Position: 2 (548 points) | 17 races. 2 wins. 1 pole position. 9 podiums. 2 fastest laps.
| | Team: Andretti Green Racing | | Car: Dallara IR2 (Honda) |
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2004
| | IRL IndyCar Series | | Position: 1 (618 points) | 15 races. 3 wins. 1 pole position. 10 podiums. 0 fastest laps.
| | Team: Andretti Green Racing | | Car: Dallara IR2 (Honda) |
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2003
| | IRL IndyCar Series | | Position: 4 (476 points) | 16 races. 1 win. 3 pole positions. 6 podiums. 5 fastest laps.
| | Team: Andretti Green Racing |
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2002
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| | | IRL IndyCar Series | | Position: 50 (2 points) | 1 race. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Mo Nunn Racing |
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2001
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2000
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1999
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1998
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1997
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1996
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1995
| | Formula 3 Italy | | Position: 5 (111 points) | 20 races. 1 win. 0 pole positions. 9 podiums. 1 fastest lap.
| | Team: Tatuus | | Car: Dallara 395 (Fiat) |
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1994
| | Formula Alfa Boxer | | Position: 1 | ? races. ? wins. ? pole positions. ? podiums. ? fastest laps. | | Complete results needed. |
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1993
| | Formula 3 Italy | | Position: no position | 1 race. 0 wins. 0 pole positions. 0 podiums. ? fastest laps. | | Team: RC Motorsport | | Car: Dallara 393 (Opel) | | Complete results needed. |
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1992
| | Formula Chevrolet Brazil | | Position: 5 | ? races. ? wins. ? pole positions. ? podiums. ? fastest laps. | | Complete results needed. |
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1991
| | Formula Ford 1600 Brazil | | Position: 6 | ? races. ? wins. ? pole positions. ? podiums. ? fastest laps. | | Complete results needed. |
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