| Race # | Track | Driver | Start | Finish | Car # | Sponsor | Chassis | Engine | Tire | Qualifying Speed | Laps | X Led | Laps Led | Status | Money | Points |
| 1 | St. Petersburg | Takuma Sato | 14 | 22 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | 103.512 | 73 | 2 | 11 | mechanical | 0 | 12 |
| 2 | Barber | Takuma Sato | 16 | 24 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | 117.262 | 52 | 0 | 0 | mechanical | 0 | 12 |
| 3 | Long Beach | Takuma Sato | 6 | 8 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | 101.356 | 84 | 2 | 16 | contact | 0 | 24 |
| 4 | Sao Paulo | Takuma Sato | 25 | 3 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | no speed | 75 | 0 | 0 | running | 20000 | 35 |
| 5 | Indianapolis | Takuma Sato | 19 | 17 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | 223.392 | 199 | 3 | 31 | contact | 301755 | 17 |
| 5 | Indianapolis | Michel Jourdain, Jr. | 22 | 19 | 30 | Office Depot/RLL Racing | Dallara | Honda | Firestone | 222.893 | 199 | 0 | 0 | running | 253305 | 16 |
| 6 | Belle Isle | Takuma Sato | 11 | 20 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | 103.771 | 38 | 0 | 0 | contact | 0 | 12 |
| 7 | Texas | Takuma Sato | 20 | 22 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | 214.196 | 63 | 0 | 0 | contact | 0 | 12 |
| 8 | Milwaukee | Takuma Sato | 24 | 20 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | 165.285 | 107 | 0 | 0 | contact | 0 | 12 |
| 9 | Iowa | Takuma Sato | 23 | 12 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | heat #1 - 8th | 247 | 0 | 0 | running | 0 | 18 |
| 10 | Toronto | Takuma Sato | 9 | 9 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | 105.617 | 85 | 0 | 0 | running | 0 | 22 |
| 11 | Edmonton | Takuma Sato | 3 | 2 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | 103.238 | 75 | 0 | 0 | running | 25000 | 40 |
| 12 | Mid-Ohio | Takuma Sato | 17 | 13 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | 122.347 | 85 | 0 | 0 | running | 0 | 17 |
| 13 | Sonoma | Takuma Sato | 26 | 27 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | 108.297 | 2 | 0 | 0 | mechanical | 0 | 10 |
| 14 | Baltimore | Takuma Sato | 24 | 21 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | 86.871 | 50 | 1 | 12 | mechanical | 0 | 12 |
| 15 | Fontana | Takuma Sato | 21 | 7 | 15 | Rahal Letterman Lanigan Racing | Dallara | Honda | Firestone | 213.222 | 249 | 3 | 6 | contact | 0 | 26 |
