2025 F4 Japanese Championship

2025 F4 Japanese Championship

Champion Class Teams' Champion:
HYDRANGEA Kageyama Racing
Independent Class Teams' Champion:
B-Max Racing Team

Previous

2024

Next

2026

Parent series:
Super GT

The 2025 F4 Japanese Championship season is a planned eleventh season of the F4 Japanese Championship.

This is the second season for the second-generation MCSC-24 chassis constructed by Toray Carbon Magic, and TOM'S TMA43 engine which produces 180 horsepower. ^[1]

Teams and drivers

All teams will compete with an identical Toray Carbon Magic MCSC-24 chassis and TOM'S 2-litre naturally aspirated engine. ^[1]

Team	No.	Driver	Rounds
Champion Class
Team 5ZIGEN	3	Sena Yamamoto [2]	1–3
Buzz Racing	7	Aoto Nagahara [3]	3, 5
TGM Grand Prix	8	Leon Ochiai [4]	1–5
	53	Shota Sakai [4]	1–5
Zap Speed	14	Masaki Murata [2]	1–5
HYDRANGEA Kageyama Racing	15	Ryusho Nakazato [5]	2–5
	16	Ryo Shirasaki [2]	1–5
	17	Itsuki Sato [2]	1–5
Akiland Racing	19	Keito Matsui [2]	1–5
TGR-DC Racing School	28	Kiyoshi Umegaki [6]	1–5
	29	Tokiya Suzuki [6]	1–5
	35	Megumu Suzuki [6]	1–5
	36	Takahiro Kikuchi [6]	1–5
	37	Masana Muto [6]	1–5
	38	Yuzuki Miura [6]	1–5
Drago Corse	33	Yuta Suzuki [2]	1–5
	34	Fuki Tanaka [2]	1–5
B-Max Racing Team [a] HFDP with B-Max Racing Team [a]	43	Tosei Moriyama [7]	1–5
	50	Kotaro Shimbara [8]	1–5
	51	Syo Momose [8]	1–5
	52	Ayato Iwasaki [9]	1–5
Ponos Racing	45	Ryota Horachi [10]	1–5
	54	Ryuma Sako [10]	1–5
Fujita Pharmacy Racing	46	Shouma Arimura [2]	1–5
Ragno Motor Sport	48	Lin Chenghua [2]	1–2
		Kaoru Yoshida [11]	4
OTG Motor Sports	60	Kenta Kumagai [12]	1–5
	80	Miki Onaga [12]	1–5
HELM Motorsports	62	Haruto Nakai [13]	1–5
	63	Fuji Kishi [13]	1–5
Skill Speed	77	Yasumasa Kano [2]	1
Dr Dry Racing Team	87	Rio Shimono [2]	1–3, 5
		Rikuto Toyoshima [11]	4
Bionic Jack Racing	97	Ai Miura [2]	1–5
Independent Class
Day Dream Racing	4	Yuichi Sasaki [2]	1–5
Team 5ZIGEN	5	Motohiro Kotani [2]	1–3
Buzz Racing	6	"Ken Alex" [2]	1–5
	7	Hitoshi Sakai [2]	1
Rn-sports	10	Isao Nakashima [2]	1–5
	11	Masayuki Ueda [2]	1–5
	74	Kentaro Kojima [2]	1–5
Eagle Racing	21	Tadakazu Kojima [2]	1–5
	40	Shoichiro Akamatsu [2]	1–5
N-Speed	23	"Yugo" [2]	1–5
B-Max Racing Team	30	"Dragon" [9]	1–5
	44	Nobuhiro Imada [9]	1–5
	88	Kazutaka Miura [9]	2–4
		Yasuhiro Shimizu	5
Field Motorsport	55	"Kentaro" [2]	1–5
HELM Motorsports	61	William Sakai [13]	1–5
	64	Go Shimizu [13]	1–3
Akiland Racing	71	Masayoshi Oyama [2]	1–5
	96	Makio Saito [2]	1–5
Dr Dry Racing Team	86	Hachiro Osaka [2]	1–5
Bionic Jack Racing	98	"Ikari" [2]	1–5

Race calendar and results

All rounds are held in Japan and support the Super GT events in Japan, except for Okayama. ^[14]

Round		Circuit	Date	Pole position	Fastest lap	Winning driver	Winning team	Independent Class winner
1	R1	Fuji Speedway, Oyama	3 May	Ryo Shirasaki	Itsuki Sato	Tokiya Suzuki	TGR-DC Racing School	"Kentaro"
	R2		4 May	Ryo Shirasaki	Ryo Shirasaki	Ryo Shirasaki	HYDRANGEA Kageyama Racing	"Dragon"
	R3				Ryo Shirasaki	Itsuki Sato	HYDRANGEA Kageyama Racing	"Kentaro"
2	R4		2 August	Itsuki Sato	Tokiya Suzuki	Itsuki Sato	HYDRANGEA Kageyama Racing	"Dragon"
	R5		3 August	Itsuki Sato	Itsuki Sato	Itsuki Sato	HYDRANGEA Kageyama Racing	"Dragon"
3	R6	Suzuka Circuit, Suzuka	23 August	Kotaro Shimbara	Tosei Moriyama	Itsuki Sato	HYDRANGEA Kageyama Racing	"Dragon"
	R7		24 August	Kotaro Shimbara	Itsuki Sato	Kotaro Shimbara	HFDP with B-Max Racing Team	Nobuhiro Imada
4	R8	Sportsland Sugo, Murata	20 September	Tokiya Suzuki	Itsuki Sato	Tokiya Suzuki	TGR-DC Racing School	"Kentaro"
	R9			Tokiya Suzuki	Itsuki Sato	Tokiya Suzuki	TGR-DC Racing School	"Kentaro"
	R10		21 September		Itsuki Sato	Itsuki Sato	HYDRANGEA Kageyama Racing	Nobuhiro Imada
5	R11	Autopolis, Hita	18–19 October	Tokiya Suzuki	Tokiya Suzuki	Tokiya Suzuki	TGR-DC Racing School	"Kentaro"
	R12			Tosei Moriyama	Ryo Shirasaki	Ryo Shirasaki	HYDRANGEA Kageyama Racing	Nobuhiro Imada
6	R13	Mobility Resort Motegi, Motegi	1–2 November
	R14

Championship standings

Points were awarded as follows:

Position	1st	2nd	3rd	4th	5th	6th	7th	8th	9th	10th
Points	25	18	15	12	10	8	6	4	2	1

Drivers' standings

Champion Class

Pos Driver FUJ1 FUJ2 SUZ SUG AUT MOT Pts R1 R2 R3 R4 [b] R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 1 Itsuki Sato 11 2 1 1 1 1 2 2 2 1 2 5 212.5 2 Tokiya Suzuki 1 3 3 26 7 3 6 1 1 2 1 4 189 3 Ryo Shirasaki 8 1 23 3 3 7 10 4 3 3 4 1 137.5 4 Kotaro Shimbara 21 6 13 2 2 2 1 13 5 16 8 8 96 5 Syo Momose 6 21 6 4 5 6 3 9 11 6 6 3 88 6 Tosei Moriyama 3 4 2 6 6 16 14 16 13 20 5 2 86 7 Ryota Horachi 5 5 24 7 4 4 4 14 12 Ret 7 6 73 8 Kiyoshi Umegaki 2 10 4 25 9 25 11 6 7 4 11 11 59 9 Kenta Kumagai Ret Ret 17 10 13 5 5 3 9 5 10 9 50.5 10 Ryuma Sako 12 11 8 5 8 24 8 12 4 18 20 24 29 11 Leon Ochiai 23 14 10 11 11 26 Ret 5 6 7 19 15 25 12 Ayato Iwasaki 4 19 5 24 10 13 15 23 15 17 13 13 23 13 Megumu Suzuki 9 7 11 20 21 10 12 7 8 8 12 12 23 14 Masana Muto 15 Ret DNQ DNS 19 12 17 17 21 10 3 7 22 15 Keito Matsui 10 Ret 12 19 22 8 7 8 14 12 WD WD 15 16 Yuta Suzuki 16 8 7 13 14 Ret 27 11 10 13 25 22 11 17 Fuki Tanaka 7 Ret Ret 12 12 Ret 23 18 18 15 17 16 6 18 Takahiro Kikuchi Ret 15 15 17 18 9 29 10 24 24 9 14 5 19 Haruto Nakai 22 9 22 9 27 11 19 28 25 23 19 18 3 20 Yuzuki Miura 14 13 Ret 22 15 27 9 15 16 14 15 10 3 21 Fuji Kishi 24 16 18 8 26 15 26 27 26 21 22 DNS 2 22 Sena Yamamoto 20 12 9 21 16 14 18 2 23 Rikuto Toyoshima 19 17 9 2 24 Shota Sakai 18 18 14 23 23 23 13 22 24 11 16 17 0 25 Miki Onaga 13 Ret 20 18 20 22 24 20 23 Ret 21 19 0 26 Ryusho Nakazato 14 25 19 16 24 Ret 26 Ret 23 0 27 Rio Shimono 17 DNS 16 DNS 24 20 21 15 27 0 28 Ai Miura 19 17 19 15 17 17 20 26 20 25 24 25 0 29 Masaki Murata Ret Ret DNS 16 28 18 28 21 25 19 23 21 0 30 Kaoru Yoshida Ret 19 22 0 31 Shouma Arimura Ret Ret DNQ DNQ DNQ 28 25 25 22 27 Ret 20 0 32 Lin Chenghua DNQ 20 Ret DNQ DNQ 0 33 Aoto Nagahara 21 22 26 26 0 34 Yasumasa Kano DNQ DNQ 21 0 Pos Driver R1 R2 R3 R4 [b] R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 Pts FUJ1 FUJ2 SUZ SUG AUT MOT

Key Colour Result Gold Winner Silver Second place Bronze Third place Green Other points position Blue Other classified position Not classified, finished (NC) Purple Not classified, retired (Ret) Red Did not qualify (DNQ) Did not pre-qualify (DNPQ) Black Disqualified (DSQ) White Did not start (DNS) Race cancelled (C) Blank Did not practice (DNP) Excluded (EX) Did not arrive (DNA) Withdrawn (WD) Did not enter (cell empty) Text formatting Meaning Bold Pole position Italics Fastest lap † — Did not finish but classified

Independent Class

Pos	Driver	FUJ1			FUJ2		SUZ		SUG			AUT		MOT		Pts
		R1	R2	R3	R4 [b]	R5	R6	R7	R8	R9	R10	R11	R12	R13	R14
1	"Kentaro"	1	3	1	3	Ret	5	2	1	1	Ret	1	3			190.5
2	Nobuhiro Imada	2	4	Ret	2	2	3	1	3	5	1	2	1			190
3	"Dragon"	Ret	1	5	1	1	1	3	2	2	3	4	Ret			175.5
4	Masayuki Ueda	DNQ	DNQ	DNQ	6	3	2	4	5	4	5	3	4			108
5	"Ken Alex"	4	15	2	5	5	4	13	15	11	2	7	5			91
6	Isao Nakashima	3	2	3	4	8	Ret	Ret	4	3	9	8	Ret			91
7	Makio Saito	5	8	4	Ret	4	8	Ret	6	6	4	11	12			70
8	Shoichiro Akamatsu	8	13	Ret	11	7	6	7	8	8	6	6	6			56
9	William Sakai	7	6	7	8	Ret	9	9	10	9	8	Ret	8			37
10	"Ikari"	11	5	8	12	15	12	16	7	7	10	12	9			29
11	Yasuhiro Shimizu											5	2			28
12	Masayoshi Oyama	6	9	6	DNQ	DNQ	11	14	9	15	11	14	10			21
13	Go Shimizu	13	10	11	7	14	7	5								20
14	Motohiro Kotani	Ret	7	Ret	Ret	12	15	6								14
15	Kentaro Kojima	10	12	Ret	13	11	13	8	12	10	13	9	7			14
16	Tadakazu Kojima	Ret	17	9	13	6	10	10	WD	WD	WD	WD	WD			12
17	Yuichi Sasaki	12	14	10	10	10	14	11	11	13	7	10	11			9.5
18	Hachiro Osaka	9	11	13	9	13	16	Ret	14	14	12	13	13			3
19	Kazutaka Miura				14	9	Ret	12	13	12	14					2
20	Hitoshi Sakai	14	16	12												0
21	"Yugo"	DNQ	DNQ	DNQ	DNQ	DNQ	17	15	16	16	15	15	14			0
Pos	Driver	R1	R2	R3	R4 [b]	R5	R6	R7	R8	R9	R10	R11	R12	R13	R14	Pts
		FUJ1			FUJ2		SUZ		SUG			AUT		MOT

Teams' standings

Only the best finisher scored points for their team.

Champion Class

Pos	Driver	FUJ1			FUJ2		SUZ		SUG			AUT		MOT		Pts
		R1	R2	R3	R4 [b]	R5	R6	R7	R8	R9	R10	R11	R12	R13	R14
1	HYDRANGEA Kageyama Racing	8	1	1	1	1	1	2	2	2	1	2	1			238.5
2	TGR-DC Racing School	1	3	3	17	7	3	6	1	1	2	1	4			189
3	HFDP with B-Max Racing Team	6	6	6	2	2	2	1	9	5	6	6	3			135
4	Ponos Racing	5	5	8	5	4	4	4	12	4	18	7	6			91
5	B-Max Racing Team	3	4	2	6	6	14	14	16	13	17	5	2			85
6	OTG Motor Sports	14	Ret	17	10	13	5	5	3	9	5	10	9			49.5
7	TGM Grand Prix	18	14	10	11	11	23	13	5	6	7	16	15			25
8	Drago Corse	7	8	7	12	12	Ret	23	11	10	13	17	16			17
9	Akiland Racing	10	Ret	12	19	22	8	7	8	14	12	WD	WD			13
10	HELM Motorsports	23	9	18	8	26	11	19	27	26	21	18	18			4
11	Team 5ZIGEN	21	12	9	21	16	14	18								2
12	Dr Dry Racing Team	17	DNS	16	DNS	24	20	21	19	17	9	15	27			2
13	Bionic Jack Racing	20	17	19	15	17	17	20	26	20	25	24	25			0
14	Zap Speed	Ret	Ret	DNS	16	28	18	28	21	25	19	23	21			0
15	Ragno Motor Sport	DNQ	20	Ret	DNQ	DNQ			Ret	19	22					0
16	Fujita Pharmacy Racing	Ret	Ret	DNQ	DNQ	DNQ	28	25	25	22	27	Ret	20			0
17	Buzz Racing						21	22				25	26			0
18	Skill Speed	DNQ	DNQ	21												0
Pos	Driver	R1	R2	R3	R4 [b]	R5	R6	R7	R8	R9	R10	R11	R12	R13	R14	Pts
		FUJ1			FUJ2		SUZ		SUG			AUT		MOT

Independent Class

Pos	Driver	FUJ1			FUJ2		SUZ		SUG			AUT		MOT		Pts
		R1	R2	R3	R4 [b]	R5	R6	R7	R8	R9	R10	R11	R12	R13	R14
1	B-Max Racing Team	2	1	5	1	1	1	1	2	2	1	2	1			244.5
2	Field Motorsport	1	3	1	3	Ret	5	2	1	1	Ret	1	3			190.5
3	Rn-sports	3	2	3	4	3	2	4	4	3	5	3	4			163
4	Buzz Racing	4	15	2	5	5	4	13	15	11	2	7	5			91
5	Akiland Racing	5	8	4	Ret	4	8	14	9	6	4	11	10			71
6	Eagle Racing	8	13	9	11	6	6	7	8	8	6	6	6			60
7	HELM Motorsports	7	6	7	6	14	7	5	10	9	8	Ret	8			50
8	Bionic Jack Racing	11	5	8	12	15	12	16	7	7	10	12	9			29
9	Team 5ZIGEN	Ret	7	Ret	Ret	12	15	6								14
10	Day Dream Racing	12	14	10	10	10	14	11	11	13	7	10	11			9.5
11	Dr Dry Racing Team	9	11	13	9	13	16	Ret	14	14	12	13	13			3
12	N-Speed	DNQ	DNQ	DNQ	DNQ	DNQ	17	15	16	16	15	15	14			0
Pos	Driver	R1	R2	R3	R4 [b]	R5	R6	R7	R8	R9	R10	R11	R12	R13	R14	Pts
		FUJ1			FUJ2		SUZ		SUG			AUT		MOT

Notes

1. Car No. 43 & No. 52 entered as B-Max Racing Team, and car No. 50 & No. 51 entered as HFDP with B-Max Racing Team.
2. Only five of the 14 laps were completed, less than 75% of the race distance, thus half points were awarded.

References

1. "Japanese F4 reveals Gen2 design to be introduced in 2024". formulascout. 10 August 2022. Retrieved 10 August 2022.
2. "Finjo Muschlien on X: Here's Japanese F4's entry list for Round 1 at Fuji". X. 24 April 2025. Retrieved 1 April 2025.
3. "FIA-F4 選手権鈴鹿大会 エントリーリストお問い合わせ第 大会" (PDF). FIA F4 Japan. 18 August 2025. Retrieved 18 August 2025.
4. "TGM Grand PrixがFIA-F4に初参戦。池田代表「若手にチャンスを与える場所を作りたい」". as-web.jp. 7 December 2024. Retrieved 7 December 2024.
5. Muschlien, Finjo (29 April 2025). "Japanese F4: 2025 season guide". Feeder Series. Retrieved 29 April 2025.
6. "TOYOTA GAZOO Racing Presents its 2025 motorsport team setups in Japan". Toyota Gazoo Racing. 25 December 2024. Retrieved 25 December 2024.
7. "2025FIA-F4参戦体制（森山冬星選手を追加エントリー）". B-Max Racing Team. 15 April 2025. Retrieved 15 April 2025.
8. "Honda 2025 Motorsports Program Overview". Honda. 10 January 2025. Retrieved 10 January 2025.
9. "2025 FIA-F4（B-Max）参戦体制". B-Max Racing Team. 20 February 2025. Retrieved 20 February 2025.
10. "『PONOS RACING』2025年シーズン参戦体制のお知らせ". Ponos. 19 February 2025. Retrieved 19 February 2025.
11. "FIA-F4 選⼿権菅⽣⼤会 エントリーリスト" (PDF). F4 Japanese Championship. 15 September 2025. Retrieved 15 September 2025.
12. "2025 LM corsa/OTG Motorsports 体制発表". OTG Motorsports. 7 February 2025. Retrieved 7 February 2025.
13. "2025　FIA-F4 体制発表". HELM Motorsports. 30 April 2025. Retrieved 30 April 2025.
14. "Competition Calendar". JAF. 8 January 2025. Retrieved 8 January 2025.

External links

• Official website (in Japanese)