The 2006 Indy Japan 300 was Round 3 of the 2006 IndyCar Series. The event was held at Twin Ring Motegi, Japan on 22 April 2006. Helio Castroneves started on pole position and was the race winner.
Race Result
| Pos. | No. | Driver | Chassis | Engine | Tire | Started | Laps | Total Time | Laps Led | Status | Points | Avg. Speed | Pit Stops |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | Helio Castroneves | Dallara | Honda | Firestone | 1 | 200 | - | 184 | Running | 53 | 153.248 | - |
| 2 | 10 | Dan Wheldon | Dallara | Honda | Firestone | 3 | 200 | - | 5 | Running | 40 | - | - |
| 3 | 11 | Tony Kanaan | Dallara | Honda | Firestone | 5 | 200 | - | 1 | Running | 35 | - | - |
| 4 | 6 | Sam Hornish Jr. | Dallara | Honda | Firestone | 4 | 200 | - | 0 | Running | 32 | - | - |
| 5 | 15 | Buddy Rice | Panoz | Honda | Firestone | 18 | 200 | - | 0 | Running | 30 | - | - |
| 6 | 7 | Bryan Herta | Dallara | Honda | Firestone | 7 | 200 | - | 0 | Running | 28 | - | - |
| 7 | 55 | Kosuke Matsuura | Dallara | Honda | Firestone | 6 | 200 | - | 0 | Running | 26 | - | - |
| 8 | 16 | Danica Patrick | Panoz | Honda | Firestone | 14 | 200 | - | 0 | Running | 24 | - | - |
| 9 | 9 | Scott Dixon | Dallara | Honda | Firestone | 2 | 199 | - | 5 | Running | 22 | - | - |
| 10 | 4 | Vitor Meira | Dallara | Honda | Firestone | 11 | 199 | - | 2 | Running | 20 | - | - |
| 11 | 27 | Dario Franchitti | Dallara | Honda | Firestone | 10 | 199 | - | 0 | Running | 19 | - | - |
| 12 | 26 | Marco Andretti | Dallara | Honda | Firestone | 17 | 199 | - | 0 | Running | 18 | - | - |
| 13 | 2 | Tomas Scheckter | Dallara | Honda | Firestone | 12 | 196 | - | 3 | Running | 17 | - | - |
| 14 | 5 | Buddy Lazier | Dallara | Honda | Firestone | 15 | 195 | - | 0 | Running | 16 | - | - |
| 15 | 14 | Felipe Giaffone | Dallara | Honda | Firestone | 9 | 155 | - | 0 | Accident | 15 | - | - |
| 16 | 8 | Scott Sharp | Dallara | Honda | Firestone | 8 | 42 | - | 0 | Accident | 14 | - | - |
| 17 | 91 | P.J. Chesson | Dallara | Honda | Firestone | 16 | 40 | - | 0 | Accident | 13 | - | - |
| 18 | 17 | Jeff Simmons | Panoz | Honda | Firestone | 20 | 40 | - | 0 | Accident | 12 | - | - |
| 19 | 51 | Tomas Enge | Dallara | Honda | Firestone | 13 | 25 | - | 0 | Accident | 12 | - | - |
| 20 | 20 | Ed Carpenter | Dallara | Honda | Firestone | 19 | 25 | - | 0 | Accident | 12 | - | - |