FIT 1.5 Challenge Cup Final Best Lap Order
DATE:2017-12-10 WEATHER: Fine COURSE: Dry International Racing Course 5.807km
| Pos. | No. | Driver | Type | Team/Car | Time | Delay | Gap | Laps |
| 1 | 80 | Hiroshi Ito | GK5 | Honda Cars Tokyo Dunlop KYR Brake Shop | 2'32.387 | 137.18km/h | 4/8 | |
| 2 | 70 | Hirobon | GK5 | Underle NUTEC Brake Shop HC Kitakobe Higashino | 2'32.552 | 0.165 | 0.165 | 2/8 |
| 3 | 57 | Takuya Nishida | GK5 | Zero Fighter Tatsumi ENG★Brake Shop★FIT | 2'32.987 | 0.600 | 0.435 | 3/8 |
| 4 | 25 | Yuya Ota | GK5 | THE BRIDE FIT | 2'33.293 | 0.906 | 0.306 | 3/8 |
| 5 | 77 | Reo Teranishi | GK5 | Senna RT WS Technica FIT | 2'33.352 | 0.965 | 0.059 | 5/8 |
| 6 | 81 | Takuji Okada | GK5 | KYR Technica Brake Shop TD Senaruto FIT | 2'33.410 | 1.023 | 0.058 | 3/8 |
| 7 | 14 | Kyouji Ueoka | GK5 | Winning Braking House RG Banking ☆ GK5 | 2'33.492 | 1.105 | 0.082 | 5/8 |
| 8 | 51 | Kiyoshi Hachisuka | GK5 | Garage Hachisuka Moty's Brake Shop | 2'33.570 | 1.183 | 0.078 | 5/8 |
| 9 | 62 | Resshu Shioya | GK5 | G/M Snoko SSR WM FIT | 2'33.736 | 1.349 | 0.166 | 5/8 |
| 10 | 36 | Jun Fujii | GK5 | FCMG Close-Up ☆ Brake Shop ☆ | 2'33.765 | 1.378 | 0.029 | 3/4 |
| 11 | 15 | Hiroki Kano | GK5 | BANKING Braking Shop Winning☆GK5 | 2'34.166 | 1.779 | 0.401 | 3/8 |
| 12 | 1 | Masaki Nishihata | GK5 | K-oneSPM・WM Okawa Kreis FIT | 2'35.026 | 2.639 | 0.860 | 4/8 |
| 13 | 82 | Riki Tanioka | GK5 | R'SDESIGN MOty'S FIT | 2'35.538 | 3.151 | 0.512 | 4/8 |
| 14 | 88 | Masayuki Umeda | GK5 | Tokyo Ashi no Vascular C. Brake Shop Close-Up | 2'35.809 | 3.422 | 0.271 | 4/8 |
| 15 | 16 | Masahiro Imuta | GK5 | NUTEC Brake House Juカー | 2'35.859 | 3.472 | 0.050 | 4/8 |
| 16 | 333 | Yoshimi Fujita | GK5 | GLORYRACING☆A-ONEGK5 | 2'47.019 | 14.632 | 11.160 | 7/8 |
