Challenge 3・4 Time Attack 2nd Round Results
DATE:2018-04-08 WEATHER: Fine COURSE: Dry International South Course 1.264km
| Pos. | No. | Cls. | Rider | Type | Team | Time | Delay | Gap | Lap | ||
| 1 | 45 | Challenge 4 | 1 | Miyata Kei | Honda CRF250X | Club Selection | 59.273 | 76.77km/h | 14/15 | ||
| 2 | 34 | Challenge 4 | 2 | Suzuka Circuit | Kawasaki Ninja250 | Kamikaze Racing | 59.738 | 0.465 | 0.465 | 14/15 | |
| 3 | 2 | Challenge 3 | 1 | Hiroaki Akazawa | Suzuki SV400S | 8stroke | 1'00.069 | 0.796 | 0.331 | 6/15 | |
| 4 | 32 | Challenge 4 | 3 | Hiroshi Kaneda | Kawasaki Ninja250SL | TW's Racing & KIKS | 1'00.572 | 1.299 | 0.503 | 12/15 | |
| 5 | 52 | Challenge 4 | 4 | Hiroji Yagi | Honda CBR250R | Tsubaki Racing | 1'01.064 | 1.791 | 0.492 | 10/14 | |
| 6 | 4 | Challenge 4 | 5 | Sekiuchi Satoru | Kawasaki Ninja250SL | AGGRESSI Department | 1'01.188 | 1.915 | 0.124 | 8/15 | |
| 7 | 46 | Challenge 4 | 6 | Yuka Hirano | Honda CBR250R | CLUB Motor Lab EJ | 1'01.324 | 2.051 | 0.136 | 8/10 | |
| 8 | 1 | Challenge 4 | 7 | Koji Kuribayashi | Honda CBR250RR | CLUB Motor Lab EJ | 1'02.790 | 3.517 | 1.466 | 9/14 | |
| 9 | 15 | Challenge 4 | 8 | Asai Tsune | Kawasaki Ninja250SL | Aggressive Section | 1'02.835 | 3.562 | 0.045 | 8/10 | |
| 10 | 22 | Challenge 4 | 9 | Yusuke Yamada | Yamaha YZ250FX | Phantom Chick Group | 1'04.038 | 4.765 | 1.203 | 4/14 | |
| 11 | 66 | Challenge 4 | 10 | Akihiro Fujii | Kawasaki Ninja250 | CLUB Motor Lab EJ | 1'06.268 | 6.995 | 2.230 | 13/14 | |
| 12 | 93 | Challenge 4 | 11 | Yuzo Furumi | Honda CRF250L | CLUB Motor Lab EJ | 1'07.054 | 7.781 | 0.786 | 9/13 |
