Japanese F4 points leader Tadasuke Makino recorded his third win in four races.
Having been passed by Sho Tsuboi for the win in race one at Fuji, Makino was back onto the top step in race two.
The RN-S driver held off Yuichi Mikasa over the 15-lap race, finishing a second ahead.
His chief rival Tsuboi was sent into a spin in the opening lap and missed out on the podium for the first time.
For Mikasa, meanwhile, it was a maiden top-three result, while Shinnosuke Yamada added his second third-place finish of the Fuji round.
VSR Lamborghini’s Takuro Shinohara, whose previous best result was 17th, took fourth, a second up on Honda’s Mizuki Ishizaka.
Katsuhide Kaneishi took the flag in sixth, but was heftily penalised for overtaking under yellows. As such, the spot went to newcomer Musashi Nakanishi, who led KCMG’s Yuki Nemoto and Skill Speed’s Riku Hashimoto.
Tsuboi recovered to ninth, claiming the fastest lap along the way, while Shintaro Kawabata took tenth.
It was a tough race for all three international drivers in the field. FMCS champion James Munro was eliminated two laps in after making it up from 19th to eighth, Nicolas Costa finished outside the points and Doyun Hwang retired after one lap.
|1||Tadasuke Makino||RN-S||15 laps in 26:45.068|
|2||Yuichi Mikasa||B-MAX Racing||+0.918|
|3||Shinnosuke Yamada||B-MAX Racing||+6.910|
|4||Takuro Shinohara||Garage Chabatake||+9.860|
|5||Mizuki Ishizaka||Honda FDP||+10.512|
|8||Riku Hashimoto||Skill Speed||+14.475|
|9||Shou Tsuboi||TOM’S Spirit||+17.763|
|10||Shintaro Kawabata||Succeed Sports||+20.752|
|11||Hiroki Ohtsu||Honda FDP||+21.828|
|12||Taku Bamba||Saitama Toyopet GreenBrave||+25.814|
|13||Kazuto Kotaka||TOM’S Spirit||+26.510|
|14||Nicolas Costa||VSR Lamborghini||+27.149|
|15||Yuta Kamimura||Honda FDP||+28.799|
|16||Yuki Shiraishi||Team A-One||+29.841|
|17||Yuya Tezuka||Leprix Sport||+30.180|
|18||Tomoki Takahashi||Field Motorsport||+32.410|
|19||Tsubasa Amano||Media Do Kageyama||+32.826|
|20||Noa Satomi||Le Beausset Motorsports||+33.895|
|21||Shunsuke Kouno||RS Fine||+35.058|
|23||Kotoka Goibuchi||ma with SARD||+47.511|
|24||Junpei Kato||ma with SARD||+51.442|
|25||View Yamauchi||Buzz International||+51.468|
|26||?Motor Mouse?||Challenge Racing||+52,=.097|
|27||?Flying Rat?||Challenge Racing||+1:03.406|
|28||Katsuhide Kaneishi||Honda FDP||+1:06.031|
|30||Miku Ikejima||Sutekina Racing Team||+1:24.848|
|31||Katsuaki Kubota||Hanashima Racing||+1:50.940|
|32||Tsubasa Mekaru||Media Do Kageyama||+2 laps|
|Yuya Hiraki||RS Fine||+8 laps|
|Yoshiaki Katayama||ma with SARD||+12 laps|
|James Munro||KCMG||+13 laps|
|Ryo Yamada||Garage Chabatake||+13 laps|
|Doyun Hwang||ZAP Speed||+14 laps|
|Takashi Hata||Field Motorsport||+15 laps|