1998 All Japan Superbike Championship
Between April 12 and November 1 1998, 123 riders competed in 9 races on 6 circuits.
Race summary
Key: E = total entries / P = total riders who practised / Q = total qualifiers / S = total starters / C = total classified finishers.
| Date | Circuit | Winner | E | P | Q | S | C | Conditions | Distance | Avg. KMH |
|---|---|---|---|---|---|---|---|---|---|---|
| 1998-04-12 |  Motegi | Wataru YOSHIKAWA / Yamaha | 44 | 42 | 38 | 38 | 29 | Overcast / Dry | 105.62 km | 151.01 km/h |
| 1998-04-26 | Sugo | Akira RYO / Suzuki | 43 | 41 | 34 | 33 | 29 | Overcast / Damp | 74.75 km | 144.26 km/h |
| 1998-05-17 | Tsukuba | Shin'ichi ITO / Honda | 50 | 41 | 32 | 32 | 28 | Cloudy / Dry | 62.10 km | 126.79 km/h |
| 1998-05-31 | Suzuka | Shin'ichi ITO / Honda | 76 | 67 | 44 | 44 | 29 | Sunny / Dry | 205.24 km | 159.21 km/h |
| 1998-08-09 | CP MINE | Shin'ichi ITO / Honda | 26 | 26 | 26 | 22 | Sunny / Dry | 84.21 km | 132.84 km/h | |
| 1998-09-06 | Suzuka | Shin'ya TAKEISHI / Kawasaki | 61 | 54 | 44 | 44 | 32 | Raining / Wet | 117.28 km | 140.36 km/h |
| 1998-09-20 | Tsukuba | Shin'ichi ITO / Honda | 47 | 41 | 32 | 32 | 24 | Sunny / Dry | 62.10 km | 126.56 km/h |
| 1998-10-18 | TI Aida | Shin'ichi ITO / Honda | 34 | 32 | 28 | Cloudy / Dry | 92.55 km | 141.69 km/h | ||
| 1998-11-01 | Sugo | Tadayuki OKADA / Honda | 55 | 40 | 40 | 31 | Cloudy / Dry | 93.44 km | 147.59 km/h |
Rider statistics
Key: R = total races started / W = total wins / P = total podiums / PP = total pole positions / RT = total retirements / BF = best finish pos. / AF = average finish pos. / AP = average points scored per race / Fin. % = percentage of races finished / TL = total laps completed / BG = best grid position / AG = average grid position.
| Rider | Points | R | W | P | PP | RT | BF | AF | AP | Fin. % | TL | BG | AG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aoyanagi, Yukihiro | 5.00 | 7 | 3 | 12 | 15 | 0.71 | 57.14 % | 126 | 15 | 25 | |||
| Arai, Shuya | 4.00 | 2 | 14 | 14 | 2.00 | 100.00 % | 54 | 23 | 25 | ||||
| Arakaki, Toshiyuki | 18.00 | 4 | 8 | 12 | 4.50 | 100.00 % | 102 | 12 | 16 | ||||
| Asai, Ichiro | 28.00 | 7 | 1 | 8 | 13 | 4.00 | 85.71 % | 152 | 16 | 18 | |||
 Doohan, Michael | 1 | 1 | 3 | 3 | 100.00 % | 25 | 4 | 4 | |||||
 Edwards, Colin | 1 | 4 | 4 | 100.00 % | 25 | 7 | 7 | ||||||
| Fukami, Takahiro | 2.00 | 5 | 1 | 14 | 21 | 0.40 | 80.00 % | 106 | 16 | 28 | |||
| Furukawa, Minoru | 1 | 17 | 17 | 100.00 % | 25 | 23 | 23 | ||||||
| Gomi, Morimichi | 1 | 26 | 26 | 100.00 % | 28 | 30 | 30 | ||||||
| Haga, Kensuke | 62.00 | 8 | 1 | 4 | 8 | 7.75 | 87.50 % | 190 | 8 | 10 | |||
| Haga, Noriyuki | 23.00 | 2 | 5 | 6 | 11.50 | 100.00 % | 60 | 3 | 3 | ||||
| Hamaguchi, Toshiyuki | 55.00 | 8 | 2 | 5 | 7 | 6.88 | 75.00 % | 167 | 4 | 9 | |||
| Haraguchi, Yuji | 9.00 | 8 | 2 | 11 | 16 | 1.13 | 75.00 % | 168 | 14 | 21 | |||
| Hasegawa, Katsunori | 16.00 | 9 | 3 | 12 | 14 | 1.78 | 66.67 % | 198 | 16 | 20 | |||
| Hayashi, Katsuteru | 1 | 17 | 17 | 100.00 % | 29 | 25 | 25 | ||||||
| Higashimura, Isami | 3 | 2 | 23 | 23 | 33.33 % | 29 | 13 | 21 | |||||
 Hodgson, Neil | 1 | 13 | 13 | 100.00 % | 35 | 17 | 17 | ||||||
| Honda, Koji | 1 | 20 | 20 | 100.00 % | 18 | 25 | 25 | ||||||
| Hotta, Hideto | 1 | 29 | 29 | 100.00 % | 19 | 39 | 39 | ||||||
| Imai, Shin'ichiro | 7.00 | 3 | 10 | 16 | 2.33 | 100.00 % | 79 | 22 | 30 | ||||
| Ito, Shin'ichi | 129.00 | 9 | 5 | 6 | 4 | 1 | 1 | 5 | 14.33 | 88.89 % | 221 | 1 | 2 |
| Iwahashi, Ken'ichiro | 1 | 1 | RT | 0.00 % | 9 | 37 | 37 | ||||||
| Izutsu, Hitoyasu | 59.00 | 6 | 1 | 3 | 7 | 9.83 | 100.00 % | 157 | 5 | 9 | |||
| Kamada, Manabu | 39.00 | 9 | 1 | 9 | 13 | 4.33 | 88.89 % | 219 | 10 | 12 | |||
| Kamimura, Yoshinori | 4 | 18 | 25 | 100.00 % | 101 | 26 | 34 | ||||||
| Kaneyasu, Tomohiko | 3.00 | 7 | 2 | 13 | 18 | 0.43 | 71.43 % | 137 | 14 | 21 | |||
| Kato, Jun'ichi | 6.00 | 6 | 1 | 13 | 19 | 1.00 | 83.33 % | 127 | 16 | 21 | |||
| Kawamura, Yasunari | 1 | 1 | RT | 0.00 % | 0 | 35 | 35 | ||||||
| Kawase, Hiroaki | 2 | 20 | 22 | 100.00 % | 43 | 15 | 25 | ||||||
| Kinoshita, Koji | 1 | 1 | RT | 0.00 % | 15 | 29 | 29 | ||||||
| Kishida, Takaharu | 1 | 25 | 25 | 100.00 % | 19 | 41 | 41 | ||||||
| Kitagawa, Keiichi | 106.00 | 9 | 3 | 1 | 2 | 4 | 11.78 | 88.89 % | 210 | 3 | 5 | ||
| Kobayashi, Hiroki | 3 | 2 | 28 | 28 | 33.33 % | 30 | 26 | 28 | |||||
| Kobayashi, Toshiya | 1 | 1 | RT | 0.00 % | 13 | 24 | 24 | ||||||
| Konishi, Yoshiteru | 1 | 20 | 20 | 100.00 % | 34 | 34 | 34 | ||||||
| Koshiyama, Katsuhito | 3 | 22 | 22 | 100.00 % | 78 | 23 | 27 | ||||||
| Maruyama, Hiroshi | 1 | 20 | 20 | 100.00 % | 29 | 26 | 26 | ||||||
| Matsubara, Izumi | 1 | 24 | 24 | 100.00 % | 19 | 33 | 33 | ||||||
| Matsushita, Toshitake | 3 | 2 | 24 | 24 | 33.33 % | 51 | 29 | 30 | |||||
| Minamikawa, Kozo | 1 | 1 | RT | 0.00 % | 3 | 42 | 42 | ||||||
| Miura, Takashi | 1 | 19 | 19 | 100.00 % | 24 | 31 | 31 | ||||||
| Mizusawa, Tamotsu | 1 | 23 | 23 | 100.00 % | 34 | 33 | 33 | ||||||
| Mizutani, Masaru | 1 | 26 | 26 | 100.00 % | 23 | 17 | 17 | ||||||
| Nakagawa, Minoru | 1 | 21 | 21 | 100.00 % | 29 | 24 | 24 | ||||||
| Nakagawa, Naofumi | 2.00 | 5 | 2 | 14 | 18 | 0.40 | 60.00 % | 89 | 13 | 25 | |||
| Nakamura, Ken'ichiro | 1.00 | 7 | 15 | 23 | 0.14 | 100.00 % | 177 | 21 | 26 | ||||
| Nakamura, Yoshihiko | 2 | 21 | 23 | 100.00 % | 41 | 33 | 33 | ||||||
| Narumi, Hideaki | 1 | 27 | 27 | 100.00 % | 28 | 32 | 32 | ||||||
| Nashimoto, Kei | 1.00 | 3 | 15 | 21 | 0.33 | 100.00 % | 68 | 25 | 30 | ||||
| Nishijima, Osamu | 16.00 | 4 | 10 | 16 | 4.00 | 100.00 % | 111 | 12 | 14 | ||||
| Nojima, Hidetaka | 1 | 23 | 23 | 100.00 % | 29 | 31 | 31 | ||||||
| Odagiri, Norikazu | 1 | 26 | 26 | 100.00 % | 19 | 29 | 29 | ||||||
| Ogura, Naoto | 5.00 | 2 | 1 | 11 | 11 | 2.50 | 50.00 % | 38 | 8 | 11 | |||
| Okada, Tadayuki | 23.00 | 1 | 1 | 1 | 1 | 1 | 23.00 | 100.00 % | 25 | 2 | 2 | ||
| Okada, Yoichi | 1 | 27 | 27 | 100.00 % | 22 | 31 | 31 | ||||||
| Onishi, Hideki | 3 | 1 | 22 | 24 | 66.67 % | 62 | 16 | 30 | |||||
| Onishi, Takatoshi | 3 | 1 | 17 | 18 | 66.67 % | 46 | 22 | 28 | |||||
| Onodera, Yasuhiro | 1 | 23 | 23 | 100.00 % | 19 | 23 | 23 | ||||||
| Osaki, Ryuichi | 6 | 2 | 19 | 25 | 66.67 % | 128 | 27 | 35 | |||||
| Oshima, Tadashi | 1 | 23 | 23 | 100.00 % | 24 | 18 | 18 | ||||||
| Ouchida, Minoru | 2 | 1 | 28 | 28 | 50.00 % | 22 | 34 | 39 | |||||
| Ryo, Akira | 97.00 | 8 | 1 | 3 | 1 | 1 | 4 | 12.13 | 87.50 % | 191 | 2 | 5 | |
| Saeki, Hiroshi | 3 | 1 | 17 | 18 | 66.67 % | 52 | 22 | 24 | |||||
| Senmyo, Hideo | 3 | 1 | 18 | 19 | 66.67 % | 55 | 27 | 33 | |||||
| Serizawa, Tamaki | 54.00 | 9 | 1 | 4 | 2 | 6 | 6.00 | 55.56 % | 162 | 2 | 6 | ||
| Shimizu, Kazuki | 13.00 | 4 | 11 | 13 | 3.25 | 100.00 % | 105 | 13 | 21 | ||||
| Shimizu, Shuichi | 1 | 24 | 24 | 100.00 % | 24 | 28 | 28 | ||||||
| Shimoda, Ken'ichi | 1 | 24 | 24 | 100.00 % | 28 | 30 | 30 | ||||||
 Slight, Aaron | 1 | 1 | 1 | 2 | 2 | 100.00 % | 25 | 1 | 1 | ||||
| Sohwa, Takahiro | 52.00 | 7 | 1 | 2 | 3 | 6 | 7.43 | 71.43 % | 140 | 4 | 8 | ||
| Suzuki, Takayuki | 2.00 | 4 | 14 | 18 | 0.50 | 100.00 % | 109 | 20 | 23 | ||||
| Takahashi, Yoshinobu | 2.00 | 6 | 14 | 20 | 0.33 | 100.00 % | 140 | 8 | 19 | ||||
| Takatsuto, Yoshihiko | 7 | 4 | 18 | 23 | 42.86 % | 107 | 12 | 27 | |||||
| Takeda, Yuichi | 67.00 | 8 | 2 | 2 | 2 | 6 | 8.38 | 75.00 % | 170 | 4 | 7 | ||
| Takeishi, Shin'ya | 87.00 | 9 | 1 | 4 | 4 | 3 | 1 | 4 | 9.67 | 66.67 % | 177 | 1 | 3 |
| Takemi, Shogo | 1 | 21 | 21 | 100.00 % | 24 | 30 | 30 | ||||||
| Takeyama, Yusuke | 3 | 16 | 22 | 100.00 % | 70 | 15 | 22 | ||||||
| Taniguchi, Hitoshi | 1 | 1 | RT | 0.00 % | 0 | 32 | 32 | ||||||
| Toda, Takashi | 1.00 | 3 | 15 | 19 | 0.33 | 100.00 % | 78 | 18 | 23 | ||||
| Tokinaga, Makoto | 3 | 2 | 29 | 29 | 33.33 % | 46 | 37 | 38 | |||||
| Tsukamoto, Masaaki | 1.00 | 4 | 1 | 15 | 18 | 0.25 | 75.00 % | 78 | 19 | 22 | |||
| Tsuruta, Ryuji | 5.00 | 4 | 11 | 19 | 1.25 | 100.00 % | 112 | 14 | 21 | ||||
| Tsutsui, Hideaki | 2 | 2 | RT | 0.00 % | 11 | 31 | 33 | ||||||
| Usui, Makoto | 3 | 1 | 26 | 27 | 66.67 % | 52 | 32 | 34 | |||||
| Watanabe, Atsushi | 42.00 | 7 | 5 | 14 | 6.00 | 100.00 % | 169 | 5 | 10 | ||||
| Yamakawa, Mamoru | 1 | 1 | RT | 0.00 % | 1 | 40 | 40 | ||||||
| Yamamoto, Takuma | 21.00 | 8 | 2 | 10 | 14 | 2.63 | 75.00 % | 161 | 14 | 18 | |||
| Yamanaka, Masayuki | 2 | 19 | 22 | 100.00 % | 48 | 18 | 19 | ||||||
| Yamazaki, Naoji | 5 | 2 | 20 | 20 | 60.00 % | 90 | 21 | 25 | |||||
| Yanagawa, Akira | 10.00 | 1 | 9 | 9 | 10.00 | 100.00 % | 25 | 14 | 14 | ||||
| Yoshihiro, Atsushi | 1 | 27 | 27 | 100.00 % | 20 | 38 | 38 | ||||||
| Yoshikawa, Wataru | 94.00 | 9 | 1 | 3 | 1 | 1 | 7 | 10.44 | 88.89 % | 206 | 3 | 7 |
Manufacturer statistics
Key: C = total competitors representing this manufacturer / R = total races started / W = total wins / P = total podiums / PP = total pole positions / RT = total retirements / BF = best finish pos. / AF = average finish pos. / AP = average points scored per race / Fin. % = percentage of races finished / TL = total laps completed / BG = best grid position / AG = average grid position.
| Manufacturer | Points | C | R | W | P | PP | RT | BF | AF | AP | Fin. % | TL | BG | AG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Ducati | 3 | 7 | 1 | 8 | 16 | 90.00 % | 219 | 16 | 18 | |||||
| Honda | 34 | 9 | 6 | 12 | 5 | 24 | 1 | 15 | 79.49 % | 2544 | 1 | 19 | ||
| Kawasaki | 26 | 9 | 1 | 6 | 4 | 19 | 1 | 15 | 75.64 % | 1649 | 1 | 19 | ||
| Suzuki | 10 | 9 | 1 | 6 | 9 | 1 | 11 | 80.85 % | 1017 | 2 | 13 | |||
| Yamaha | 19 | 9 | 1 | 3 | 16 | 1 | 15 | 76.81 % | 1455 | 3 | 21 |