The2015 F4 Japanese Championship was the inaugural season of theF4 Japanese Championship. It began on 4 April inOkayama and finished on 15 November onTwin Ring Motegi after seven double header rounds.^[1]

Team	No.	Driver	Rounds
Hanashima Racing[2]	2	Katsuaki Kubota[3]	1–2, 7
		Shuma Sato	3–5
Sutekina Racing Team[2]	3	Takahiro Ban[3]	1
		Miku Ikejima	2–3
		Sena Sakaguchi	4–7
RS Fine[2]	4	Shunsuke Kohno[3]	All
	5	Yuya Hiraki[3]	All
Clear Corporation	6	Masanori Yonekura[3]	1, 3–4, 6
Honda Formula Dream Project[2]	7	Hiroki Otsu[4]	All
	8	Yuta Kamimura[4]	All
	9	Mizuki Ishizaka[4]	All
	10	Katsuhide Kaneishi[3]	All
Rn-sports[2]	11	Tadasuke Makino[3]	All
	57	Nobuhiro Yoshida	6
Team A-ONE with SECNA[2]	12	Yuki Shiraishi[3]	1–4, 6
KCMG[2]	14	Yuki Nemoto[5]	All
	18	James Munro[3]	1–2
		Paul Ip	3
Media Do Kageyama Racing[2]	16	Tsubasa Mekaru[6]	1–5
ARN Racing	17	Hiroaki Nagai	5–7
VSR Lamborghini S.C.Formula Jr[7]	19	Takuro Shinohara[7]	All
	63	Nicolas Costa[3]	1–4
		Gustavo Myasava	5–7
miNami aoYama withSARD[2][8]	20	Kotoka Goibuchi	2, 4
		Ayaka Imahashi	3, 5
		Miki Koyama	6–7
	28	Yoshiaki Katayama[3]	1–2
	39	Junpei Kato[3]	All
RSS	21	Turbo Asahi	3–4, 7
	22	Ritomo Miyata	5–7
N-SPEED[2]	23	Yugo Tanabe[3]	All
Mars Racing Factory	24	Hideki Nakahara	7
Field Motorsport[2]	25	Tomoki Takahashi	2–4, 7
	55	Takashi Hata[3]	1–2, 4, 6–7
	75	Yuya Tezuka[3]	All
Zap Speed Racing Team[9]	27	Hwang Do-yun[9]	1–4, 7
Shunsuke Sato	32	Shunsuke Sato	4
Sfida Racing Team	34	"Flying Rat"	2–4
	35	"Motor Mouse"	2–4
TOM'S Spirit[2]	36	Sho Tsuboi[3]	All
	37	Kazuto Kotaka	2–7
Garage Chabatake[2]	38	Ryo Yamada[3]	1–3
		Tsuyoshi Tajima	5, 7
Buzz International[10]	44	View Yamauchi[10]	All
	45	Yosuke Yamazaki	7
B-Max Racing Team[11]	50	Shinnosuke Yamada[11]	All
	51	Yuichi Mikasa[11]	All
Saitama Toyopet GreenBrave[2]	52	Taku Bamba[3]	1–3, 5–7
Le Beausset Motorsports[12]	62	Noa Satomi[12]	All
Skill Speed[2]	66	Riku Hashimoto[3]	All
leprix sport	70	Tsubasa Amano	2–7
NRS[2]	80	Yudai Jinkawa[3]	1
		Satoshi Kosugi	2
	81	Musashi Nakanishi	2–3
		Yuichi Sasaki	7
Succeed Sports[2]	88	Shintaro Kawabata[3]	All
	89	Takahiro Ban	3–5
		Ryota Kiyohara	6–7

The calendar was published on 19 January 2015.^[1] All rounds were held inJapan and were part of theSuper GT events.

Round		Circuit	Date	Pole position	Fastest lap	Winning driver	Winning team
1	R1	Okayama International Circuit,Mimasaka	4 April	Sho Tsuboi	Tadasuke Makino	Tadasuke Makino	Rn-sports
	R2		5 April	Tsubasa Mekaru	Tadasuke Makino	Tadasuke Makino	Rn-sports
2	R1	Fuji Speedway,Oyama	2 May	Tadasuke Makino	Sho Tsuboi	Sho Tsuboi	TOM'S Spirit
	R2		3 May	Tadasuke Makino	Sho Tsuboi	Tadasuke Makino	Rn-sports
3	R1	Fuji Speedway,Oyama	8 August	Katsuhide Kaneishi	Yuya Hiraki	Tadasuke Makino	Rn-sports
	R2		9 August	Katsuhide Kaneishi	Yuya Hiraki	Sho Tsuboi	TOM'S Spirit
4	R1	Suzuka Circuit,Suzuka	29 August	Sho Tsuboi	Yuya Hiraki	Sho Tsuboi	TOM'S Spirit
	R2		30 August	Tadasuke Makino	Tadasuke Makino	Sho Tsuboi	TOM'S Spirit
5	R1	Sportsland SUGO,Murata	19 September	Sho Tsuboi	Shunsuke Kohno	Sho Tsuboi	TOM'S Spirit
	R2		20 September	Sho Tsuboi	Sena Sakaguchi	Sho Tsuboi	TOM'S Spirit
6	R1	Autopolis,Hita	31 October	Hiroki Otsu	Sho Tsuboi	Sho Tsuboi	TOM'S Spirit
	R2		1 November	Yuya Hiraki	Kazuto Kotaka	Shinnosuke Yamada	B-Max Racing Team
7	R1	Twin Ring Motegi,Motegi	14 November	Yuki Nemoto	Yuta Kamimura	Tadasuke Makino	Rn-sports
	R2		15 November	Tadasuke Makino	Sho Tsuboi	Tadasuke Makino	Rn-sports

• Only the best eleven results counted towards the championship. Points were awarded as follows:

Pos Driver OKA FUJ1 FUJ2 SUZ SUG AUT MOT Points 1 Sho Tsuboi 2 2 1 9 4 1 1 1 1 1 1 17 5 2 195 2 Tadasuke Makino 1 1 2 1 1 26 2 2 2 3 9 5 1 1 192 3 Hiroki Otsu 9 3 4 11 2 4 4 17 5 7 2 2 3 24 108 4 Shinnosuke Yamada Ret Ret 3 3 7 6 7 7 10 Ret 3 1 6 8 84 5 Yuya Hiraki 3 7 6 Ret 3 2 3 3 12 13 4 20 Ret 13 83 6 Kazuto Kotaka 10 13 6 5 6 4 6 7 8 6 16 11 50 7 Yuki Nemoto Ret 10 8 7 12 Ret 10 5 15 14 14 8 2 3 47 8 Shunsuke Kohno 10 20 17 21 17 18 9 9 3 2 10 10 9 6 42 9 Mizuki Ishizaka DNS 16 13 5 5 Ret 5 14 20 16 6 4 11 9 42 10 Sena Sakaguchi 30† 6 7 8 5 7 3 7 41 11 Takuro Shinohara 17 18 Ret 4 18 8 18 8 9 4 7 9 10 22 35 12 Yuta Kamimura Ret 5 11 15 Ret 12 8 10 8 6 16 15 7 4 35 13 Shintaro Kawabata 15 Ret 5 10 11 13 28 11 14 11 15 11 4 5 27 14 Yuichi Mikasa 5 Ret Ret 2 Ret 9 22 18 13 12 21 16 Ret 17 25 15 Ritomo Miyata 4 9 Ret 3 14 27 24 16 Katsuhide Kaneishi 19 9 21 28 Ret 3 16 19 21 22 27 13 15 12 14 17 Tsubasa Mekaru 6 Ret 7 32† 8 25 12 13 16 15 13 18 Nicolas Costa 4 15 12 14 DNS 16 13 24 10 19 James Munro Ret 4 16 Ret 10 20 Yuki Shiraishi 7 6 18 16 16 24 15 15 12 Ret 10 21 Musashi Nakanishi 33† 6 21 23 6 22 Turbo Asahi 10 7 20 30 23 23 5 23 Noa Satomi 20 8 Ret 20 19 31 17 16 17 Ret 11 12 12 Ret 3 24 Riku Hashimoto 11 17 19 8 24 Ret 19 20 27 21 24 23 15 Ret 3 25 Ryo Yamada 8 12 15 Ret 20 19 3 26 Taku Bamba WD WD 9 12 14 15 18 17 13 21 Ret 10 3 27 Tsubasa Amano 22 19 9 11 Ret 12 Ret 19 18 14 17 14 2 28 Shuma Sato 13 14 31† 22 11 10 1 29 Junpei Kato 13 19 14 24 15 10 14 DNS 26 23 19 27 Ret 25 1 30 Takahiro Ban 18 11 26 20 32† 23 23 26 0 31 Tomoki Takahashi 31 18 Ret 21 11 26 WD WD 0 32 Masanori Yonekura 12 23† WD WD 24 25 26 24 0 33 View Yamauchi WD WD 20 25 22 17 Ret 31 24 24 25 22 13 21 0 34 Yoshiaki Katayama 21 13 DNS Ret 0 35 Yuya Tezuka 22 14 23 17 23 22 21 27 22 20 17 18 19 Ret 0 36 Katsuaki Kubota 14 22 26 31 Ret Ret 0 37 Hwang Do-yun WD WD 25 Ret Ret 33 23 21 25 16 0 38 Yugo Tanabe 16 24 32 29 Ret 32 29 33 30 29 30 28 28 32 0 39 Gustavo Myasava 19 38 23 Ret Ret 18 0 40 Yosuke Yamazaki 18 Ret 0 41 Hiroaki Nagai 25 25 29 29† 21 19 0 42 Nobuhiro Yoshida 22 19 0 43 Ryota Kiyohara 20 Ret Ret 20 0 44 Takashi Hata Ret 21 28 Ret 25 29 Ret 25 20 30 0 45 Satoshi Kosugi 24 22 0 46 Tsuyoshi Tajima 29 28 22 31 0 47 Kotoka Goibuchi 27 23 27 DNS 0 48 Yuichi Sasaki 24 29 0 49 Ayaka Imahashi 25 28 0 50 Miki Koyama 28 26 26 26 0 51 "Motor Mouse" 29 26 27 27 WD WD 0 52 "Flying Rat" 30 27 28 30 26 32 0 53 Hideki Nakahara 27 28 0 54 Shunsuke Sato Ret 28 0 55 Miku Ikejima Ret 30 Ret 29 0 Yudai Jinkawa WD WD 0 Paul Ip WD WD 0 Pos Driver OKA FUJ1 FUJ2 SUZ SUG AUT MOT Points

Colour Result Gold Winner Silver Second place Bronze Third place Green Points classification Blue Non-points classification Non-classified finish (NC) Purple Retired, not classified (Ret) Red Did not qualify (DNQ) Did not pre-qualify (DNPQ) Black Disqualified (DSQ) White Did not start (DNS) Withdrew (WD) Race cancelled (C) Blank Did not practice (DNP) Did not arrive (DNA) Excluded (EX) Bold – Pole Italics – Fastest Lap † — Did not finish, but classified

Pos	Team	Pts.
1	TOM'S Spirit	225
2	Rn-sports	216
3	Honda Formula Dream Project	144
4	RS Fine	133
5	B-Max Racing Team	109
6	KCMG	70
7	VSR Lamborghini S.C.Formula Jr	59
8	Sutekina Racing Team	55
9	Succeed Sports	41
10	RSS	39
11	Media Do Kageyama Racing	23
12	Eagle Sport	20
13	Le Beausset Motorsports	17
14	Skill Speed	17
15	miNami aoYama withSARD	14
16	N-Speed	14
17	Field Motorsport	14
18	Leprix Sport	14
19	Garage Chabatake	13
20	Hanamashima Racing	13
21	Saitama Toyopet GreenBrave	13
22	NRS	10
23	Buzz International	10
24	Zap Speed Racing Team	8
25	Sfida Racing Team	6
26	Clear Corporation	6
27	ARN Racing	6

Official website(in Japanese)

• Japanese F4 Championship seasons
• 2015 in Formula 4
• 2015 in Japanese motorsport
• 2015 in formula racing

• CS1 Japanese-language sources (ja)
• Official website not in Wikidata
• Articles with Japanese-language sources (ja)