| P. | # | Rider | Bike | Time | KM/H |
|---|---|---|---|---|---|
| 1 | 3 |  Raymond ROCHE |  Ducati | 1:34.399 | 142.53 |
| 2 | 45 |  Doug CHANDLER |  Kawasaki | 1:34.531 | 142.33 |
| 3 | 21 | Doug POLEN | Suzuki | 1:34.599 | 142.23 |
| 4 | 8 |  Baldassarre MONTI |  Honda | 1:34.698 | 142.08 |
| 5 | 37 |  Peter GODDARD | Yamaha | 1:34.751 | 142.00 |
| 6 | 4 | Fabrizio PIROVANO | Yamaha | 1:35.216 | 141.31 |
| 7 | 42 | Jamie JAMES | Ducati | 1:35.334 | 141.14 |
| 8 | 11 | Rob PHILLIS | Kawasaki | 1:35.501 | 140.89 |
| 9 | 7 |  Terry RYMER | Yamaha | 1:35.564 | 140.80 |
| 10 | 65 |  Shingo KATO | Yamaha | 1:35.842 | 140.39 |
| 11 | 54 | Kenji OSAKA | Yamaha | 1:35.979 | 140.19 |
| 12 | 30 | Brian MORRISON | Honda | 1:36.118 | 139.98 |
| 13 | 2 |  Stéphane MERTENS | Honda | 1:36.148 | 139.94 |
| 14 | 16 | Malcolm CAMPBELL | Honda | 1:36.399 | 139.58 |
| 15 | 56 | Mitsuo SAITO | Yamaha | 1:36.454 | 139.50 |
| 16 | 61 | Shigemasa MIWA | Honda | 1:36.532 | 139.38 |
| 17 | 5 |  Anders ANDERSSON | Yamaha | 1:36.545 | 139.37 |
| 18 | 59 | Tetsuya SHIRAI | Honda | 1:36.746 | 139.08 |
| 19 | 19 | Rob McELNEA | Yamaha | 1:36.777 | 139.03 |
| 20 | 66 | Masanao AOKI | Yamaha | 1:36.864 | 138.91 |
| 21 | 52 | Tadaaki HANAMURA | Yamaha | 1:36.901 | 138.85 |
| 22 | 60 | Koichi KOBAYASHI | Honda | 1:37.106 | 138.56 |
| 23 | 43 |  Udo MARK | Yamaha | 1:37.200 | 138.43 |
| 24 | 9 |  Jari SUHONEN | Yamaha | 1:37.312 | 138.27 |
| 25 | 69 | Kosei YAMAMOTO | Honda | 1:37.319 | 138.26 |
| 26 | 38 | Tom KIPP | Yamaha | 1:37.432 | 138.10 |
| 27 | 51 | Toshiharu KANEKO | Yamaha | 1:37.921 | 137.41 |
| 28 | 23 | Ernst GSCHWENDER | Honda | 1:37.951 | 137.36 |
| 29 | 67 | Toshiya KOBAYASHI | Honda | 1:37.981 | 137.32 |
| 30 | 34 | René DELABY | Honda | 1:38.311 | 136.86 |
| 31 | 46 |  Christian ZWEDORN | Honda | 1:38.660 | 136.38 |
| 32 | 57 | Gakushin SATO | Honda | 1:38.936 | 136.00 |
| 33 | 33 | Simon BUCKMASTER | Honda | 1:39.651 | 135.02 |
| 34 | 44 |  Saen CHOEISAK |  Yamaha | 1:40.299 | 134.15 |
| 35 | 32 |  Kit Choong CHAO | Kawasaki | 1:40.646 | 133.69 |
| 36 | 53 | Masaru SHOYAMA | Honda | 1:44.404 | 128.87 |
| Ken'ichiro IWAHASHI | Honda | --.--- |
1990-08-24 to 1990-08-26
World Superbike Japanese Round
Sugo (Permanent circuit, 3.7375 km)
Attendance: 40,000
Event permit: IMN 02/9
Timekeepers: SEIKO Timing
Entries: ? / Practised: 36 / Qualified: 36
Sessions
Overall qualifying
Results
Submit additional info
Positions in parentheses denote riders who either did not receive a grid space, failed to meet qualifying requirements or withdrew after qualifying.
Rider notes
Iwahashi: Broke collarbone in free practice.
Sources:
Official results/ 1990-09-15 Sendai Television delayed coverage/ Cycle News 1990-09-12 pg20-21/ Motosprint 1990-35 pg50-53/ Riding Sport n92 pg108-112/ Riding Sport n94 pg106-107/ Riding Sport n94 pg168-175/ Sugo 40th anniversary website/ Superbike 1991