Round 6 of the 2015 Japanese Super Formula Championship was held at Sportsland Sugo, Japan on 18 October 2015. Andre Lotterer was the race winner.
Race Result
| Pos. | No. | Driver | Abbreviation | Nationality | Team | Engine | Tyre | Laps | Race Time | Gap | Best Time |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | Andre Lotterer | LOT | Germany | PETRONAS TOM’S | TOYOTA RI4A | Bridgestone | 68 | 1:17:52.551 | 194.07 km/h | 1:07.504 |
| 2 | 16 | Naoki Yamamoto | YAM | Japan | TEAM MUGEN | HONDA HR-414E | Bridgestone | 68 | 1:18:16.432 | 23.881 | 1:07.864 |
| 3 | 40 | Tomoki Nojiri | NOJ | Japan | DOCOMO DANDELION M40S | HONDA HR-414E | Bridgestone | 68 | 1:18:17.217 | 24.666 | 1:07.472 |
| 4 | 1 | Kazuki Nakajima | KAZ | Japan | PETRONAS TOM’S | TOYOTA RI4A | Bridgestone | 68 | 1:18:18.004 | 25.453 | 1:07.999 |
| 5 | 38 | Hiroaki Ishiura | ISH | Japan | P.MU/CERUMO · INGING | TOYOTA RI4A | Bridgestone | 68 | 1:18:20.922 | 28.371 | 1:07.843 |
| 6 | 8 | Kamui Kobayashi | KOB | Japan | Team KYGNUS SUNOCO | TOYOTA RI4A | Bridgestone | 68 | 1:18:40.097 | 47.546 | 1:08.219 |
| 7 | 19 | J.P.L.de Oliveira | OLI | Brazil | LENOVO TEAM IMPUL | TOYOTA RI4A | Bridgestone | 68 | 1:18:40.719 | 48.168 | 1:07.965 |
| 8 | 7 | Ryo Hirakawa | HIR | Japan | ACHIEVEMENT Team KYGNUS SUNOCO | TOYOTA RI4A | Bridgestone | 68 | 1:18:42.338 | 49.787 | 1:08.159 |
| 9 | 10 | Koudai Tsukakoshi | TSU | Japan | REAL | HONDA HR-414E | Bridgestone | 68 | 1:18:45.730 | 53.179 | 1:08.341 |
| 10 | 18 | Yuichi Nakayama | NAK | Japan | KCMG Elyse | TOYOTA RI4A | Bridgestone | 68 | 1:18:46.187 | 53.636 | 1:07.664 |
| 11 | 34 | Takashi Kogure | KOG | Japan | DRAGO CORSE | HONDA HR-414E | Bridgestone | 68 | 1:18:47.099 | 54.548 | 1:07.858 |
| 12 | 64 | Daisuke Nakajima | DAI | Japan | NAKAJIMA RACING | HONDA HR-414E | Bridgestone | 68 | 1:18:48.354 | 55.803 | 1:08.260 |
| 13 | 41 | Narain Karthikeyan | KAR | India | DOCOMO DANDELION M41Y | HONDA HR-414E | Bridgestone | 68 | 1:18:49.315 | 56.764 | 1:07.726 |
| 14 | 3 | James Rossiter | ROS | Great Britain | FUJI×D'station KONDO | TOYOTA RI4A | Bridgestone | 67 | 1:18:00.359 | 1 lap | 1:07.857 |
| 15 | 4 | William Buller | BUL | Great Britain | FUJI×D'station KONDO | TOYOTA RI4A | Bridgestone | 67 | 1:18:14.369 | 1 lap | 1:08.296 |
| 16 | 20 | Andrea Caldarelli | CAL | Italy | LENOVO TEAM IMPUL | TOYOTA RI4A | Bridgestone | 67 | 1:18:40.768 | 1 lap | 1:07.703 |
| 17 | 39 | Yuji Kunimoto | KUN | Japan | P.MU/CERUMO · INGING | TOYOTA RI4A | Bridgestone | 67 | 1:18:55.758 | 1 lap | 1:08.254 |
| 18 | 65 | Bertrand Baguette | BAG | Belgium | NAKAJIMA RACING | HONDA HR-414E | Bridgestone | 66 | 1:18:41.438 | 2 laps | 1:08.370 |
| DNF | 11 | Takuya Izawa | IZA | Japan | REAL | HONDA HR-414E | Bridgestone | 50 | 59:03.025 | 18 laps | 1:08.513 |