The2025 JapaneseSuper Formula Championship is the fifty-third season of premier Japaneseopen-wheelmotor racing, and the twelfth under the moniker of Super Formula. The season started in March atSuzuka Circuit and is due to be contested over 12 rounds in seven race weekends, ending in November at Suzuka.^[1]

VantelinTeam TOM’S driverSho Tsuboi entered the season as the defending champion.

All teams use identical Dallara-builtSF23 chassis with eitherHonda orToyota engines. Every Honda-powered car uses aHonda HR-417E engine and every Toyota-powered car uses aToyota TRD-01F engine.

Entrant	Engine	No.	Driver name	Rounds
VantelinTeam TOM’S	Toyota	1	Sho Tsuboi[2]	1–4
		37	Sacha Fenestraz	1–4
Kondo Racing	Toyota	3	Kenta Yamashita[2]	1–4
		4	Zak O'Sullivan	1–4
DocomoTeam Dandelion Racing	Honda	5	Tadasuke Makino[3]	1–4
		6	Kakunoshin Ohta[3]	1–4
Kids comTeam KCMG	Toyota	7	Kamui Kobayashi[2]	1–2
			Seita Nonaka	3–4
		8	Nirei Fukuzumi[2]	1–4
Hazama AndoTriple Tree Racing	Honda	10	”Juju”	1–4
ThreeBond Racing	Honda	12	Atsushi Miyake[3]	1–4
docomo businessRookie	Toyota	14	Kazuya Oshima[2]	1–4
Team Mugen	Honda	15	Ayumu Iwasa[3]	1–4
		16	Tomoki Nojiri[3]	1–4
Itochu Enex WecarsTeam Impul	Toyota	19	Oliver Rasmussen	1–2[a]
			Seita Nonaka	1–2
			Rikuto Kobayashi	3–4
		20	Mitsunori Takaboshi	1–4
KDDITGMGPTGR-DC	Toyota	28	Kazuto Kotaka	1–4
		29	Hibiki Taira	1–4
Sanki Vertex PartnersCerumo・Inging	Toyota	38	Sena Sakaguchi[2]	1–4
		39	Toshiki Oyu[2]	1–4
San-Ei Gen with B-Max	Honda	50	Syun Koide	1–4
PonosNakajima Racing	Honda	64	Ren Sato[3]	1–4
		65	Igor Omura Fraga	1–4

• The entry co-run byInging Motorsport andCerumo added another title sponsor alongside Vertex Partners, with Industrial manufacturer Sanki Shokai joining the series and the team competing under the nameSanki Vertex Partners Cerumo・Inging.^[4]

• TGM Grand Prix underwent substantial changes within its organization. The team ended its engine contract with Honda and instead became part ofToyota Gazoo Racing, joiningRookie Racing in serving as a Toyota junior team and receiving Toyota engines. The team is co-run by TGM and TOM'S, acquired a new title sponsor in telecommunications operatorKDDI and entered the 2025 season under the nameKDDI TGMGP TGR-DC.^[2][5]

• A new team entered the championship in Triple Tree Racing, established byHideki Noda, former Formula One and father ofJuju Noda. It uses Honda engines and is operated by motorsport management company 4Minutes. Construction companyHazama Ando was confirmed to be the entry's title sponsor, with the team running under the nameHazama Ando Triple Tree Racing.^[6]

• Red Bull ended their partnership withTeam Mugen after seven years of cooperation.^[7]

• Team Impul added another title sponsor inItochu's subsidiary company, used car dealer Wecars, with the team competing under the nameItochu Enex Wecars Team Impul.^[8]

• Nakajima Racing saw three-time series championNaoki Yamamoto retire from the series after 15 seasons.^[9] The team promoted their reserve driverIgor Fraga, who spent 2024 competing inSuper GT's GT300 class withAnest Iwata Racing with Arnage, to its Super Formula outfit.^[3]

• Team Impul have an all-new line up as2016 series championYuji Kunimoto retired from the series after 14 seasons and neither of the four drivers who drove the No. 19 car in 2024 returned.^[10] The team signedOliver Rasmussen, who came 19th in theWEC's Hypercar class withJota Sport in 2024 and made his series debut, andNISMO works driverMitsunori Takaboshi, who made his full-season debut after a one-off Super Formula appearance forTeam Impul in2021.^[2]

• B-Max Racing Team sawIori Kimura leave the team afterHonda ended its association with him. He joined Team Mach in theSuper GT GT300 class, while B-Max promoted reigningSuper Formula Lights championSyun Koide from its outfit in that championship to replace him.^[11][12][3]

• TOM'S sawUkyo Sasahara leave the series after five years and three full-time seasons to focus on hisSuper GT GT500 efforts withTGR TeamDeloitteTOM'S.2022 Super Formula runner-upSacha Fenestraz returned to the series after a two-year stint in Formula E withNissan to replace him.^[2]

• Kondo Racing replacedTGMGP-boundKazuto Kotaka with formerWilliams Academy driverZak O'Sullivan, who moved to Japan after coming 16th inFormula 2 withART Grand Prix.^[2]

• Newly rebranded teamTGMGP also took on two new drivers asJuju Noda andHiroki Otsu both left the team following its switch from Honda to Toyota engines, with Noda switching to the new Triple Tree Racing team and Otsu electing to focus on hisSuper GT GT500 efforts withARTA.Kazuto Kotaka joined the team after coming 14th withKondo Racing in his second season in 2024.Hibiki Taira, who droveTeam Impul's No. 19 car on four occasions in 2024, completed TGMGP's lineup on his full-time debut in the series.^[2]

• Juju Noda joined the new Triple Tree Racing team for her second season in the championship after finishing her debut season withTGM Grand Prix in 21st.^[6]

• Oliver Rasmussen was forced to withdraw from the first two rounds at Suzuka after suffering a back injury in a crash in free practice.^[13] Rasmussen's replacement for the two races was announced to be TGMGP's reserve driverSeita Nonaka, who came 3rd inSuper Formula Lights withTOM'S and made his series debut.^[14][15]

• Kamui Kobayashi is set miss the Motegi double-header due to a calendar clash with theWEC's 6 Hours of Imola. Nonaka is set to deputize once again after doing so for Team Impul at the Suzuka season opener.^[16] With Rasmussen still not cleared for competition after his crash at the opening round, Team Impul signed 2024 Super Formula Lights runner-upRikuto Kobayashi to make his series debut in his place.^[17]

The provisional calendar was announced on 1 August 2024.^[1] All weekends except the ones atAutopolis andSportsland Sugo will be double-headers, making this the longest calendar in Super Formula history. The series originally planned its first race outside Japan since 2004 with a round held atInje Speedium.^[18] These plans, however, were cancelled in October 2024. It marked the second time that a planned round at Inje was cancelled.^[19]

Round	Circuit	Location	Date	Support bill	Map of circuit locations
1	Suzuka International Racing Course	Suzuka,Mie	8 March	Super Formula Lights Honda N-One Owner's Cup	Fuji Suzuka Sugo Autopolis Motegi
2			9 March
3	Mobility Resort Motegi	Motegi,Tochigi	18–20 April	Porsche Carrera Cup Asia All Japan Road Race Championship
4
5	Autopolis	Hita,Oita	17–18 May	Super Formula Lights Honda N-One Owner's Cup
6	Fuji Speedway	Oyama,Shizuoka	18–20 July	Kyojo Cup Porsche Carrera Cup Japan
7
8	Sportsland SUGO	Shibata,Miyagi	9–10 August	Porsche Carrera Cup Japan Honda N-One Owner's Cup
9	Fuji Speedway	Oyama,Shizuoka	10–12 October	Kyojo Cup Honda N-One Owner's Cup
10
11	Suzuka International Racing Course	Suzuka,Mie	21–23 November	Formula Regional Japanese Championship
12

Double-header race weekends now have two 60-minute practice sessions on a Friday instead of a single 90-minute session. The rounds held at Autopolis and Sugo retain the format previously employed for single-race events, with 90 minutes of practice prior to qualifying on Saturday. Races held on Saturday are now run over a reduced distance of 165km, while races held on Sunday, including those held during the single-race weekends at Autopolis and SUGO, are run over 185km. These longer races no longer have a pre-determined pit window, while the shorter races retained the existing pit window.^[20]

A restriction on the teams' activity on race weekends was employed in order to prevent fatigue among staff members. Teams are now required to stop all work carried out in the paddock four hours after the end of the final session, although there are exemptions in cases of cars becoming seriously damaged in incidents.^[20]

Round	Circuit	Pole position	Fastest lap	Winning driver	Winning team
1	Suzuka International Racing Course	Tomoki Nojiri	Ayumu Iwasa	Kakunoshin Ohta	DocomoTeam Dandelion Racing
2		Tomoki Nojiri	Ren Sato	Tadasuke Makino	DocomoTeam Dandelion Racing
3	Mobility Resort Motegi
4
5	Autopolis
6	Fuji Speedway
7
8	Sportsland SUGO
9	Fuji Speedway
10
11	Suzuka International Racing Course
12

Race points

Qualifying points

Pos Driver SUZ1 MOT AUT FUJ1 SUG FUJ2 SUZ2 Points 1 Ayumu Iwasa 22 32 30 2 Sho Tsuboi 4 2 23 3 Kakunoshin Ohta 13 123 22 4 Tadasuke Makino 10 1 21 5 Tomoki Nojiri 71 41 18 6 Ren Sato 3 6 16 7 Kamui Kobayashi 5 9 8 8 Igor Omura Fraga 18 5 6 9 Sena Sakaguchi 6 15 5 10 Toshiki Oyu Ret 7 4 11 Syun Koide 14 8 3 12 Zak O'Sullivan 8 22† 3 13 Kenta Yamashita 9 11 2 14 Kazuya Oshima 13 10 1 15 Sacha Fenestraz 11 16 0 16 Mitsunori Takaboshi 12 20 0 17 Atsushi Miyake Ret 13 0 18 Nirei Fukuzumi Ret 14 0 19 Hibiki Taira 15 17 0 20 "Juju" 16 21 0 21 Seita Nonaka 17 19 0 22 Kazuto Kotaka Ret 18 0 — Oliver Rasmussen WD WD 0 Rikuto Kobayashi Pos Driver SUZ1 MOT AUT FUJ1 SUG FUJ2 SUZ2 Points

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

Notes:

• † – Driver did not finish the race, but was classified as they completed more than 90% of the race distance.

Pos	Driver	SUZ1		MOT		AUT	FUJ1		SUG	FUJ2		SUZ2		Points
1	DocomoTeam Dandelion Racing	1	1											41
		10	12
2	Team Mugen	2	3											38
		7	4
3	VantelinTeam TOM’S	4	2											23
		11	16
4	PonosNakajima Racing	3	5											22
		18	6
5	Sanki Vertex PartnersCerumo・Inging	6	7											9
		Ret	15
6	Kids com Team KCMG	5	9											8
		Ret	14
7	Kondo Racing	8	11											5
		9	22†
8	San-Ei Gen with B-Max	14	8											3
9	docomo businessRookie	13	10											1
10	Itochu Enex WecarsTeam Impul	12	19											0
		17	20
11	ThreeBond Racing	Ret	13											0
12	KDDITGMGPTGR-DC	15	17											0
		Ret	18
13	Triple Tree Racing	16	21											0
Pos	Driver	SUZ1		MOT		AUT	FUJ1		SUG	FUJ2		SUZ2		Points

Notes:

• † – Driver did not finish the race, but was classified as they completed more than 90% of the race distance.

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