# 2005 Formula Nippon Championship

The 2005 Formula Nippon Championship was contested over 9 rounds, 8 teams and 17 drivers competed. All teams had to use Lola B3/51 chassis and Mugen Honda (Mugen MF308) engines.

## Teams and drivers

| Team | # | Driver | Chassis | Engine | Rounds |
| DoCoMo Team Dandelion Racing | 1 | Richard Lyons | Lola B3/51 | Mugen MF308 | All |
| DoCoMo Team Dandelion Racing | 2 | Naoki Hattori | Lola B3/51 | Mugen MF308 | All |
| Kondo Racing Team | 3 | Sakon Yamamoto | Lola B3/51 | Mugen MF308 | All |
| Kondo Racing Team | 4 | Jaroslav Janiš | Lola B3/51 | Mugen MF308 | 1–3 |
| Kondo Racing Team | 4 | Ronnie Quintarelli | Lola B3/51 | Mugen MF308 | 4–9 |
| Team 5ZIGEN | 5 | Tsugio Matsuda | Lola B3/51 | Mugen MF308 | All |
| Forum Engineering Team LeMans | 7 | Tatsuya Kataoka | Lola B3/51 | Mugen MF308 | All |
| Forum Engineering Team LeMans | 8 | Takeshi Tsuchiya | Lola B3/51 | Mugen MF308 | All |
| Team Cerumo Takagi Planning with Cerumo | 11 | Katsuyuki Hiranaka | Lola B3/51 | Mugen MF308 | All |
| Team Cerumo Takagi Planning with Cerumo | 12 | Toranosuke Takagi | Lola B3/51 | Mugen MF308 | All |
| mobilecast Team Impul | 19 | Benoît Tréluyer | Lola B3/51 | Mugen MF308 | All |
| mobilecast Team Impul | 20 | Yuji Ide | Lola B3/51 | Mugen MF308 | All |
| arting Racing Team with Impul | 23 | Satoshi Motoyama | Lola B3/51 | Mugen MF308 | All |
| Carrozzerria Team MOHN | 27 | Masanobu Kato | Lola B3/51 | Mugen MF308 | 1 |
| Carrozzerria Team MOHN | 28 | Hideki Noda | Lola B3/51 | Mugen MF308 | All |
| PIAA Nakajima Racing | 31 | André Lotterer | Lola B3/51 | Mugen MF308 | All |
| PIAA Nakajima Racing | 32 | Takashi Kogure | Lola B3/51 | Mugen MF308 | All |

## Race calendar and results

All races were held in Japan.
| Round | Track | Date | Pole Position | Fastest Lap | Winner | Team |
| 1 | Twin Ring Motegi | 3 April | Yuji Ide | Katsuyuki Hiranaka | Richard Lyons | DoCoMoTeam Dandelion Racing |
| 2 | Suzuka Circuit | 17 April | Benoît Tréluyer | Takashi Kogure | Yuji Ide | mobilecast Team Impul |
| 3 | Sportsland SUGO | 15 May | Takashi Kogure | Hideki Noda | Satoshi Motoyama | arting Team Impul |
| 4 | Fuji Speedway | 5 June | Richard Lyons | Tsugio Matsuda | Benoît Tréluyer | mobilecast Team Impul |
| 5 | Suzuka Circuit | 3 July | Satoshi Motoyama | Yuji Ide | Satoshi Motoyama | arting Team Impul |
| 6 | Mine Circuit | 31 July | Benoît Tréluyer | Yuji Ide | Yuji Ide | mobilecast Team Impul |
| 7 | Fuji Speedway | 28 August | Richard Lyons | Satoshi Motoyama | André Lotterer | Nakajima Racing |
| 8 | Twin Ring Motegi | 23 October | Satoshi Motoyama | Sakon Yamamoto | Satoshi Motoyama | arting Team Impul |
| 9 | Suzuka Circuit | 27 November | Tsugio Matsuda | Benoît Tréluyer | André Lotterer | PIAA Nakajima Racing |
Calendar changes
* The race in Sepang was dropped.
* Fuji returned with two races.

## Championship standings
### Drivers' Championship
#### Scoring system

| Position | 1st | 2nd | 3rd | 4th | 5th | 6th |
| Points | 10 | 6 | 4 | 3 | 2 | 1 |
| Rank | Name | MOT | SUZ | SGO | FUJ | SUZ | MIN | FUJ | MOT | SUZ | Points |
| 1 | Satoshi Motoyama | 4 | 4 | 1 | 2 | 1 | 3 | 13 | 1 | 2 | 52 |
| 2 | Yuji Ide | 2 | 1 | 5 | 7 | 8 | 1 | 3 | 4 | 3 | 39 |
| 3 | Richard Lyons | 1 | 5 | 2 | 4 | 3 | Ret | 4 | 13 | 5 | 30 |
| 4 | André Lotterer | 11 | Ret | 9 | Ret | Ret | 10 | 1 | Ret | 1 | 20 |
| 5 | Takashi Kogure | Ret | 3 | 3 | 8 | 2 | Ret | 11 | 9 | 6 | 15 |
| 6 | Benoît Tréluyer | 6 | 9 | Ret | 1 | Ret | Ret | 12 | 11 | 4 | 14 |
| 7 | Tsugio Matsuda | 10 | 2 | Ret | 3 | 6 | 4 | 9 | 10 | 8 | 14 |
| 8 | Takeshi Tsuchiya | 5 | Ret | 4 | Ret | Ret | 5 | 5 | 3 | Ret | 13 |
| 9 | Ronnie Quintarelli | | | | 5 | 5 | 2 | Ret | 5 | 10 | 12 |
| 10 | Sakon Yamamoto | 14 | Ret | Ret | Ret | 4 | 8 | Ret | 2 | 11 | 9 |
| 11 | Tatsuya Kataoka | 7 | 8 | 8 | Ret | Ret | 7 | 2 | 6 | 7 | 7 |
| 12 | Naoki Hattori | 3 | 6 | 6 | 10 | 7 | 6 | 7 | 7 | 14 | 7 |
| 13 | Katsuyuki Hiranaka | 8 | Ret | Ret | 6 | Ret | Ret | 6 | 12 | 9 | 2 |
| 14 | Jaroslav Janiš | 12 | 7 | 7 | | | | | | | 0 |
| 15 | Toranosuke Takagi | 9 | Ret | 11 | 9 | 10 | 9 | 8 | Ret | 12 | 0 |
| 16 | Hideki Noda | Ret | Ret | 10 | Ret | 9 | Ret | 10 | 8 | 13 | 0 |
| 17 | Masanobu Kato | 13 | | | | | | | | | 0 |

### Teams' Championship

| Rank | Team | Car | MOT | SUZ | SGO | FUJ | SUZ | MIN | FUJ | MOT | SUZ | Points |
| 1 | mobilecast Impul arting Impul | 19 | 6 | 9 | Ret | 1 | Ret | Ret | 12 | 11 | 4 | 101 |
| 1 | mobilecast Impul arting Impul | 20 | 2 | 1 | 5 | 7 | 8 | 1 | 3 | 4 | 3 | 101 |
| 1 | mobilecast Impul arting Impul | 23 | 4 | 4 | 1 | 2 | 1 | 3 | 13 | 1 | 2 | 101 |
| 2 | DoCoMo Dandelion | 1 | 1 | 5 | 2 | 4 | 3 | Ret | 4 | 13 | 5 | 37 |
| 2 | DoCoMo Dandelion | 2 | 3 | 6 | 6 | 10 | 7 | 6 | 7 | 7 | 14 | 37 |
| 3 | PIAA Nakajima | 31 | 11 | Ret | 9 | Ret | Ret | 10 | 1 | Ret | 1 | 35 |
| 3 | PIAA Nakajima | 32 | Ret | 3 | 3 | 8 | 2 | Ret | 11 | 9 | 6 | 35 |
| 4 | Kondo Racing Team | 3 | 14 | Ret | Ret | Ret | 4 | 8 | Ret | 2 | 11 | 21 |
| 4 | Kondo Racing Team | 4 | 12 | 7 | 7 | 5 | 5 | 2 | Ret | 5 | 10 | 21 |
| 5 | Team LeMans | 7 | 7 | 8 | 8 | Ret | Ret | 7 | 2 | 6 | 7 | 20 |
| 5 | Team LeMans | 8 | 5 | Ret | 4 | Ret | Ret | 5 | 5 | 3 | Ret | 20 |
| 6 | 5ZIGEN | 5 | 10 | 2 | Ret | 3 | 6 | 4 | 9 | 10 | 8 | 14 |
| 7 | Cerumo | 11 | 8 | Ret | Ret | 6 | Ret | Ret | 6 | 12 | 9 | 2 |
| 7 | Cerumo | 12 | 9 | Ret | 11 | 9 | 10 | 9 | 8 | Ret | 12 | 2 |
| 8 | Team MOHN | 27 | 13 | | | | | | | | | 0 |
| 8 | Team MOHN | 28 | Ret | Ret | 10 | Ret | 9 | Ret | 10 | 8 | 13 | 0 |