# 2005 Japanese Formula 3 Championship

The 2005 Japanese Formula 3 Championship was the 26th edition of the Japanese Formula 3 Championship. It began on 2 April at Motegi and ended on 23 October at the same place. Brazilian driver João Paulo de Oliveira took the championship title, winning seven from 20 races.

## Teams and drivers

* All teams were Japanese-registered. All cars used Bridgestone tyres.
| Team | No | Driver | Chassis | Engine | Rounds |
| Inging | 1 | Roberto Streit | Dome F107 | Torii-Toyota 3S-GE | All |
| Inging | 3 | Hideto Yasuoka | Dome F107 | Torii-Toyota 3S-GE | 1–2, 4–10 |
| Inging | 3 | Hiroki Katoh | Dome F107 | Torii-Toyota 3S-GE | 3 |
| Inging | 5 | Jonny Reid | Dome F107 | Torii-Toyota 3S-GE | 1–9 |
| Inging | 5 | Hiroki Katoh | Dome F107 | Torii-Toyota 3S-GE | 10 |
| Toda Racing | 2 | Yasuhiro Takasaki | Dome F107 | Toda-Honda MF204C | All |
| M-TEC | 10 | Hideki Mutoh | Dome F107 | Mugen-Honda MF204C | All |
| M-TEC | 16 | Koudai Tsukakoshi | Lola-Dome F106 | Mugen-Honda MF204C | 8–10 |
| Dream Factory | 11 | Hironari Kawachi | Lola-Dome F106 | Toda-Honda MF204C | 7–10 |
| ThreeBond Racing | 12 | Naoki Yokomizo | Dallara F305 | ThreeBond Nissan SR20VE | All |
| ThreeBond Racing | 14 | Paolo Montin | Dallara F305 | ThreeBond Nissan SR20VE | All |
| DTM | 19 | Ryo Orime | Dallara F304 | Toyota-TOM'S 3S-GE | All |
| Now Motor Sports | 33 | Taku Banba | Dallara F305 | Toyota-TOM'S 3S-GE | All |
| TOM'S | 36 | João Paulo de Oliveira | Dallara F305 | Toyota-TOM'S 3S-GE | All |
| TOM'S | 37 | Kazuki Nakajima | Dallara F305 | Toyota-TOM'S 3S-GE | All |
| TOM'S | 38 | Daisuke Ikeda | Dallara F305 | Toyota-TOM'S 3S-GE | All |
| Zap Speed | 50 | Motohiko Isozaki | Dallara F305 | Toyota-TOM'S 3S-GE | All |
| Le Beausset Motorsports | 62 | Koki Saga | Dallara F305 | Toyota-TOM'S 3S-GE | All |

## Race calendar and results

| Round | Round | Circuit | Date | Pole Position | Fastest Lap | Winning driver | Winning team |
| 1 | R1 | Twin Ring Motegi, Motegi | 2 April | João Paulo de Oliveira | João Paulo de Oliveira | João Paulo de Oliveira | TOM'S |
| 1 | R2 | Twin Ring Motegi, Motegi | 3 April | João Paulo de Oliveira | Hideki Mutoh | Hideki Mutoh | M-TEC |
| 2 | R1 | Suzuka Circuit, Suzuka | 16 April | Daisuke Ikeda | João Paulo de Oliveira | João Paulo de Oliveira | TOM'S |
| 2 | R2 | Suzuka Circuit, Suzuka | 17 April | João Paulo de Oliveira | João Paulo de Oliveira | Hideki Mutoh | M-TEC |
| 3 | R1 | Sportsland SUGO, Murata | 14 May | Naoki Yokomizo | Jonny Reid | Naoki Yokomizo | ThreeBond Racing |
| 3 | R2 | Sportsland SUGO, Murata | 15 May | Naoki Yokomizo | João Paulo de Oliveira | Naoki Yokomizo | ThreeBond Racing |
| 4 | R1 | Fuji Speedway, Oyama | 4 June | Naoki Yokomizo | Kazuki Nakajima | João Paulo de Oliveira | TOM'S |
| 4 | R2 | Fuji Speedway, Oyama | 5 June | Kazuki Nakajima | João Paulo de Oliveira | João Paulo de Oliveira | TOM'S |
| 5 | R1 | Okayama International Circuit | 18 June | João Paulo de Oliveira | João Paulo de Oliveira | Paolo Montin | ThreeBond Racing |
| 5 | R2 | Okayama International Circuit | 19 June | João Paulo de Oliveira | João Paulo de Oliveira | Naoki Yokomizo | ThreeBond Racing |
| 6 | R1 | Suzuka Circuit, Suzuka | 2 July | Daisuke Ikeda | Kazuki Nakajima | João Paulo de Oliveira | TOM'S |
| 6 | R2 | Suzuka Circuit, Suzuka | 3 July | João Paulo de Oliveira | Kazuki Nakajima | Roberto Streit | Inging |
| 7 | R1 | Mine Circuit, Mine | 30 July | João Paulo de Oliveira | Kazuki Nakajima | Kazuki Nakajima | TOM'S |
| 7 | R2 | Mine Circuit, Mine | 31 July | Roberto Streit | Roberto Streit | Kazuki Nakajima | TOM'S |
| 8 | R1 | Fuji Speedway, Oyama | 27 August | Kazuki Nakajima | Kazuki Nakajima | Paolo Montin | ThreeBond Racing |
| 8 | R2 | Fuji Speedway, Oyama | 28 August | Kazuki Nakajima | Kazuki Nakajima | João Paulo de Oliveira | TOM'S |
| 9 | R1 | Mine Circuit, Mine | 10 September | João Paulo de Oliveira | Kazuki Nakajima | Jonny Reid | Inging |
| 9 | R2 | Mine Circuit, Mine | 11 September | Jonny Reid | João Paulo de Oliveira | João Paulo de Oliveira | TOM'S |
| 10 | R1 | Twin Ring Motegi, Motegi | 22 October | Hideki Mutoh | Hideki Mutoh | Hideki Mutoh | M-TEC |
| 10 | R2 | Twin Ring Motegi, Motegi | 23 October | Hideki Mutoh | Roberto Streit | Paolo Montin | ThreeBond Racing |

## Standings

* Points are awarded as follows:
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 20 | 15 | 12 | 10 | 8 | 6 | 4 | 3 | 2 | 1 |
| Pos | Driver | MOT | MOT | SUZ | SUZ | SUG | SUG | FUJ | FUJ | OKA | OKA | SUZ | SUZ | MIN | MIN | FUJ | FUJ | MIN | MIN | MOT | MOT | Pts |
| 1 | João Paulo de Oliveira | 1 | 2 | 1 | 2 | Ret | 2 | 1 | 1 | 2 | 4 | 1 | 2 | 2 | 5 | 4 | 1 | 3 | 1 | 2 | 2 | 272 |
| 2 | Kazuki Nakajima | Ret | Ret | 3 | 3 | 4 | 3 | 2 | 2 | 4 | 8 | 2 | 5 | 1 | 1 | 2 | 2 | Ret | 2 | 3 | Ret | 209 |
| 3 | Hideki Mutoh | Ret | 1 | 4 | 1 | 3 | 8 | 5 | 5 | 7 | 7 | 4 | 3 | 5 | Ret | 8 | 6 | 2 | 4 | 1 | 3 | 179 |
| 4 | Naoki Yokomizo | 3 | 4 | 8 | 8 | 1 | 1 | 3 | 4 | 6 | 1 | 8 | 6 | 6 | 2 | 3 | Ret | 4 | 3 | 10 | 12 | 177 |
| 5 | Paolo Montin | 2 | 3 | 9 | 6 | 9 | Ret | Ret | 8 | 1 | 3 | 7 | 4 | 4 | 3 | 1 | 3 | NC | 6 | 4 | 1 | 174 |
| 6 | Roberto Streit | 4 | 6 | 5 | Ret | 5 | 5 | Ret | 7 | 5 | 6 | 5 | 1 | 3 | Ret | 5 | 5 | 6 | 5 | 9 | 4 | 138 |
| 7 | Daisuke Ikeda | 5 | 5 | 2 | 4 | 7 | 4 | 8 | 3 | 3 | 2 | 3 | Ret | 9 | 10 | 6 | 11 | 11 | 7 | 11 | 7 | 126 |
| 8 | Jonny Reid | 6 | 7 | 7 | 5 | 2 | 6 | 4 | 9 | 8 | 5 | Ret | DNS | 7 | Ret | 7 | Ret | 1 | 12 | | | 94 |
| 9 | Taku Bamba | 7 | 9 | 6 | 9 | 8 | 7 | 7 | 10 | 12 | 10 | 6 | 7 | 11 | 7 | 9 | 4 | 8 | 9 | 5 | 13 | 65 |
| 10 | Hideto Yasuoka | 10 | 12 | 11 | DNS | | | 6 | 11 | 11 | 13 | 10 | DNS | 8 | 4 | Ret | 8 | 5 | Ret | 8 | Ret | 35 |
| 11 | Yasuhiro Takasaki | 8 | 8 | 10 | 7 | Ret | 10 | 9 | 6 | 9 | 9 | 13 | DNS | 13 | Ret | 15 | 10 | Ret | 10 | 7 | 11 | 30 |
| 12 | Hiroki Katoh | | | | | 6 | 9 | | | | | | | | | | | | | 6 | 6 | 20 |
| 13 | Koki Saga | 11 | 10 | 12 | 10 | Ret | 11 | 11 | 13 | 14 | 12 | 9 | 8 | 10 | 6 | 10 | 9 | Ret | 13 | 15 | 8 | 20 |
| 14 | Koudai Tsukakoshi | | | | | | | | | | | | | | | 11 | 7 | 7 | 8 | 12 | 5 | 19 |
| 15 | Ryo Orime | 9 | Ret | 13 | 11 | 10 | 13 | 10 | 12 | 10 | 11 | 11 | 9 | 12 | Ret | 12 | 13 | 12 | 11 | Ret | Ret | 7 |
| 16 | Motohiko Isozaki | 12 | 11 | 14 | 12 | 11 | Ret | 12 | 14 | 13 | Ret | 12 | 10 | 14 | 11 | 14 | 12 | 10 | 15 | 13 | 9 | 4 |
| 17 | Hironari Kawachi | | | | | | | | | | | | | Ret | Ret | 13 | 14 | 9 | 14 | 14 | 10 | 3 |
| Pos | Driver | MOT | MOT | SUZ | SUZ | SUG | SUG | FUJ | FUJ | OKA | OKA | SUZ | SUZ | MIN | MIN | FUJ | FUJ | MIN | MIN | MOT | MOT | Pts |
| Colour | Result |
| Gold | Winner |
| Silver | Second place |
| Bronze | Third place |
| Green | Points finish |
| Blue | Non-points finish |
| Blue | Non-classified finish (NC) |
| Purple | Retired (Ret) |
| Red | Did not qualify (DNQ) |
| Red | Did not pre-qualify (DNPQ) |
| Black | Disqualified (DSQ) |
| White | Did not start (DNS) |
| White | Withdrew (WD) |
| White | Race cancelled (C) |
| Blank | Did not practice (DNP) |
| Blank | Did not arrive (DNA) |
| Blank | Excluded (EX) |