| Yoshinori Koguchi | |
|---|---|
| Nationality |  Japan |
| Born | February 2, 1969 Tochigi, Japan |
| D1 Grand Prix career | |
| Debut season | 2001 |
| Current team | Dunlop Tyres |
| Wins | 1 |
| Best finish | 10th in 2007 |
| Previous series | |
| (previous series with line breaks) | |
| Championship titles | |
| (championship titles) | |
Yoshinori Koguchi (古口 美範, Koguchi Yoshinori, 2 February 1969 in Tochigi) is a Japanese professional drifting driver, who competes in the D1 Grand Prix series for Dunlop Tyres and Koguchi Power.
Like many of the other D1 drivers, he owns his own tuning garage called Koguchi Power. Yoshinori does all of the work on his car himself. He has a following of Nissan 180SX enthusiasts as he is one of the top 180SX drivers, also his car is the same one that he started out in. His car uses mostly off the shelf parts. His nickname is 'Emperor'.
He has been competing in D1 since it began in 2001 and scored points in his Nissan 180SX in the first three seasons. He then switched to a Nissan Silvia S15 sponsored by tuning firm High Power Improvement, he did not do well in the car or the Toyota Chaser he used after. So in 2007 he changed back to his 180SX and has done well. Usually if he makes it into the top 16 he will score big points, gaining his first win in round 2 of the 2008 season.
Drifting results
| Colour | Result |
|---|---|
| Gold | Winner |
| Silver | 2nd place |
| Bronze | 3rd place |
| Green | Last 4 [Semi-final] |
| Blue | Last 8 [Quarter-final] |
| Purple | Last 16 (16) [1st Tsuiou Round OR Tandem Battle] (Numbers are given to indicate Top 10 finish) |
| Black | Disqualified (DSQ) (Given to indicate that the driver has been stripped of their position through disqualification) |
| White | First Round (TAN) [Tansou OR Qualifying Single Runs] |
| Red | Did not qualify (DNQ) |
- When driver's position are highlighted in blue, this indicates either the driver earned 100pt or 100pt tansou (solo run) bonus has been awarded, with the latter being in use for Pre-2005.
D1 Grand Prix
| Year | Entrant | Car | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Position | Points |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2001 | Koguchi Power | Nissan 180SX RPS13 | EBS 8 |
NIK |
BHH TAN |
EBS TAN |
NIK 8 |
16 | 12 | |||
| 2002 | Koguchi Power | Nissan 180SX RPS13 | BHH TAN |
EBS TAN |
SGO TAN |
TKB TAN |
EBS 8 |
SEK DNQ |
NIK 5 |
17 | 18 | |
| 2003 | Koguchi Power | Nissan 180SX RPS13 | TKB TAN |
BHH TAN |
SGO TAN |
FUJ DNQ |
EBS 9 |
SEK |
TKB DNQ |
22 | 4 | |
| 2004 | HPI | Nissan 180SX RPS13 | IRW TAN |
- | 0 | |||||||
| Nissan Silvia S15 | SGO 16 |
EBS TAN |
APS DNQ |
ODB DNQ |
EBS DNQ |
TKB DNQ |
||||||
| 2005 | HPI | Nissan Silvia S15 | IRW TAN |
ODB DNQ |
SGO DNQ |
APS DNQ |
EBS DNQ |
FUJ DNQ |
TKB DNQ |
- | 0 | |
| 2006 | Toyota Chaser JZX100 | IRW TAN |
SGO DNQ |
FUJ DNQ |
APS TAN |
EBS DNQ |
SUZ DNQ |
FUJ DNQ |
IRW TAN |
- | 0 | |
| 2007 | Koguchi Power | Nissan 180SX RPS13 | EBS DNQ |
FUJ 5 |
SUZ |
SGO TAN |
EBS DNQ |
APS DNQ |
FUJ 2 |
10 | 31 | |
| 2008 | Dunlop Tyres | Nissan 180SX RPS13 | EBS TAN |
FUJ 1 |
SUZ TAN |
OKY 8 |
APS 16 |
EBS |
FUJ 5 |
11 | 50 |