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| 1998/3/28 Budweiser 500 CART FedEx CHAMPIONSHIP SERIES ROUND2 | 4 wheels | |
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| Finals | |
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| 1998/4/11-12 All Japan Road Race Championship Series Round 1 Motegi Superbike Race | 2 wheels | |
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| GP125 | Qualifying 1st Round Gr.A | Qualifying 1st Round Gr.B | Qualifying 2nd Round Gr.A | Qualifying 2nd Round Gr.B | Overall Qualifying | Warm-up | Finals | |
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| GP250 | Qualifying 1st Round Gr.A | Qualifying 1st Round Gr.B | Qualifying 2nd Round Gr.A | Qualifying 2nd Round Gr.B | Overall Qualifying | Warm-up | Finals | |
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| SuperBike | Qualifying 1st Round | Qualifying 2nd Round | Overall Qualifying | Warm-up | Finals | |
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| 1998/5/9-10 All Japan Touring Car Championship Series Round 3 | 4 wheels | |
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| Mirage | Group A Qualifying | Group B Qualifying | Overall Qualifying | Finals | |
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| F4 | Qualifying | Finals | |
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| JTCC | Qualifying 1st Round | Qualifying 2nd Round | Overall Qualifying | Free Practice | Finals | |
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| 1998/6/13-14 All Japan Championship Formula Nippon Round 4 | 4 wheels | |
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| CIVIC Inter Cup | Qualifying | Finals | |
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| MGF Trophy Race | Qualifying | Finals | |
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| F3 | Official Practice | Qualifying | Free Practice | Finals | |
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| Formula Nippon | Official Practice | Special Stage | Qualifying | Free Run Finals | |
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| 1998/8/21-22 Summer Endurance Carnival Motegi Open 7-Hour Endurance Race | 2 wheels | |
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| 1st Rider | A Group Qualifying | B Group Qualifying | |
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| 2nd Rider | A Group Qualifying | B Group Qualifying | |
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| 3rd Substitute Rider | A Gr. Qualifying | B Gr. Qualifying | Alternate Rider | |
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| Qualifying Results | Qualifying Results Table | |
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| Intermediate Results Table | 1h | 2h | 3h | 4h | 5h | 6h | |
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| 7-Hour Endurance Race | Finals | |
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| 1998/9/12-13 All Japan GT Championship Series Round 5 Motegi GT Champion Race | 4 wheels | |
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| CIVIC | Qualifying | Finals | |
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| Mirage | Qualifying | Finals | |
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| FJ1600 | Qualifying | Finals | |
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| GT | Qualifying 1st Round | Qualifying 2nd Round | Overall Qualifying | Free Practice | (21 Laps) | (42 Laps) | Finals | |
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| 1998/9/26-27 Super Taikyu Series 7th Round Motegi Super N1 Endurance Race | 4 wheels | |
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| F4 | Qualifying | Finals | |
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| N1 Endurance | Qualifying 1 | Qualifying 2 | Overall Qualifying | (21 Laps) | (42 Laps) | (63 Laps) | (84 Laps) | Finals | |
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| 1998/11/20〜22 NASCAR THUNDER SPECIAL MOTEGI Coca−Cola 500 | 4 wheels | |
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| NASCAR | 11/20 Practice1 | 11/21 Practice2 | Final Practice | Qualifying 1 Lap | Race | |
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