Chester Kieffer

Chester Kieffer
Kieffer at the Nürburgring in 2024
Nationality	Luxembourger
Born	(2006-07-23) 23 July 2006 (age 19) Luxembourg
Porsche Carrera Cup France career
Debut season	2025
Current team	CLRT Schumacher
Starts	12 (12 entries)
Wins	0
Podiums	1
Poles	0
Fastest laps	0
Best finish	6th in 2025

Chester Kieffer (born 23 July 2006) is a Luxembourgish racing driver who last competed in Porsche Carrera Cup France for CLRT Schumacher.

Career

Formula 4

Formula 4 UAE Championship

Kieffer began karting at 15 and made his single-seater debut in the 2024 Formula 4 UAE Championship for X GP. ^[1] He only contested the third round of the series at the Dubai Autodrome, where his highest result was a fifteenth in the first race. Kieffer finished the drivers championship in twenty-ninth. ^[2]

French F4 Championship

His main campaign of the year was in the 2024 French F4 Championship, where he enjoyed success in the first half of the season. Kieffer got his first ever pole position, podium and win in the first race of the second round at Lédenon and became the first Luxembourger to win in a FIA sanctioned single seater series. ^{[3] [4] [5]} In the third race he got this second podium, in form of a second place. He got his second win in the first race of the next round at the Circuit de Spa-Francorchamps. ^[6]

After Spa-Francorchamps, he only mustered three points finishes – a highest of sixth and the Nürburgring – throughout the rest of the season. ^[7] Despite this, the Luxembourger managed to hang onto fourth in the drivers championship and finished his maiden campaign with two wins, one pole position, one fastest lap, three podiums and 116 points. ^[8]

F4 British Championship

Kieffer made a cameo in the sixth round of the 2024 F4 British Championship with Xcel Motorsport at Circuit Zandvoort, the only international round in the season. ^[9] He finished a highest of nineteenth in the second race and got four bonus points after he overtook four cars. Kieffer ended the drivers championship in thirtieth with four points. ^[10]

FIA Motorsport Games

He drove in the FIA Motorsport Games Formula 4 Cup for Team Luxembourg and finished sixth in the main race. ^{[11] [12]}

Porsche competition

2025

For the 2025 season, he switched from Formula 4 to one-make Porsche racing and kicked off his season in the 2025 Porsche Sprint Challenge Southern Europe with CLRT Schumacher, where he won the rookie title and finished third in the main championship after claiming two pole positions in the first round at Algarve, and achieving his maiden podium in the second round at Estoril. ^{[13] [14] [15]}

He competed full-time in the 2025 Porsche Carrera Cup France with CLRT Schumacher where he got his only podium in the second race of the third round at the Circuit de Spa-Francorchamps with a third place. ^{[16] [17]} Kieffer consistently finished in the top-ten throughout the season, beating Enzo Joulié to the rookie title and ending the main championship in sixth. ^{[18] [19]}

Karting record

Karting career summary

Season	Series	Team	Position
2023	IAME Euro Series – X30 Senior	RSD Karting	185th
	IAME Warriors Final – X30 Senior		NC
2023	WSK Champions Cup – X30 Senior	RSD Karting	NC
	IAME Euro Series – X30 Senior		115th
Source: [20]

Racing record

Racing career summary

Season	Series	Team	Races	Wins	Poles	F/Laps	Podiums	Points	Position
2024	Formula 4 UAE Championship	X GP	3	0	0	0	0	0	29th
	French F4 Championship	FFSA Academy	20	2	1	1	3	116	4th
	F4 British Championship	Xcel Motorsport	3	0	0	0	0	4	30th
	FIA Motorsport Games Formula 4 Cup	Team Luxembourg	2	0	0	0	0	0	6th
2025	Porsche Sprint Challenge Southern Europe	CLRT Schumacher	8	0	2	0	1	78	3rd
	Porsche Carrera Cup France		12	0	0	0	1	127	6th
	Nürburgring Langstrecken-Serie – Cup3	AV Racing by Black Falcon	1	0	0	0	0	0	NC†

Complete Formula 4 UAE Championship results

(key) (Races in bold indicate pole position; races in italics indicate fastest lap)

Year	Team	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	DC	Points
2024	X GP	YMC1 1	YMC1 2	YMC1 3	YMC2 1	YMC2 2	YMC2 3	DUB1 1 15	DUB1 2 28	DUB1 3 Ret	YMC3 1	YMC3 2	YMC3 3	DUB2 1	DUB2 2	DUB2 3	29th	0

Complete French F4 Championship results

(key) (Races in bold indicate pole position; races in italics indicate fastest lap)

Year	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	DC	Points
2024	NOG 1 10	NOG 2 C	NOG 3 5	LÉD 1 1	LÉD 2 7	LÉD 3 2	SPA 1 1	SPA 2 5	SPA 3 4	NÜR 1 Ret	NÜR 2 20	NÜR 3 6	MAG 1 11	MAG 2 10	MAG 3 Ret	DIJ 1 10	DIJ 2 12	DIJ 3 7	LEC 1 15	LEC 2 Ret	LEC 3 14	4th	116

Complete F4 British Championship results

(key) (Races in bold indicate pole position; races in italics indicate fastest lap)

Year	Team	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	DC	Points
2024	Xcel Motorsport	DPN 1	DPN 2	DPN 3	BHI 1	BHI 2	BHI 3	SNE 1	SNE 2	SNE 3	THR 1	THR 2	THR 3	SILGP 1	SILGP 2	SILGP 3	ZAN 1 20	ZAN 2 194	ZAN 3 Ret	KNO 1	KNO 2	KNO 3	DPGP 1	DPGP 2	DPGP 3	DPGP 4	SILN 1	SILN 2	SILN 3	BHGP 1	BHGP 2	BHGP 3	BHGP 4	30th	4

Complete Porsche Carrera Cup France results

(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)

Year	Team	1	2	3	4	5	6	7	8	9	10	11	12	Pos	Points
2025	CLRT Schumacher	BAR 1 5	BAR 2 7	DIJ 1 9	DIJ 2 8	SPA 1 8	SPA 2 3	MIS 1 5	MIS 2 7	VAL 1 5	VAL 2 5	LEC 1 12	LEC 2 4	6th	127

^*Season still in progress.

References

1. Series, Feeder (2024-06-13). "Luxembourg's rising star in French F4: Who is Chester Kieffer?". Feeder Series. Retrieved 2024-11-29.
2. "Freddie Slater Leads as F4 UAE Championship Resumes in Dubai". Formula 4 UAE Championship. 2024-01-31.
3. "Taito Kato and Chester Kieffer share French F4 poles at Ledenon". formulascout.com. 10 May 2024. Retrieved 17 January 2026.
4. "Chester Kieffer veut conserver la trajectoire idéale à Spa". lessential.lu (in French). 21 June 2024. Retrieved 17 January 2026.
5. "Chester Kieffer and Frank Porte Ruiz win at Ledenon in French F4". formulascout.com. 11 May 2024. Retrieved 17 January 2026.
6. "Chester Kieffer takes second F4 win at Spa Francorchamps". Kartcom.com. 23 June 2024. Retrieved 17 January 2026.
7. "A top six finish after an eventful weekend at the Nürburgring". kartcom.com. Retrieved 18 January 2026.
8. "Tight title fight and many surprises: French F4 season review". f1feederseries.net. 14 December 2024. Retrieved 18 January 2026.
9. "Nobels, Kieffer and Rivera to make ROKiT British F4 debuts at Zandvoort". fiaformula4.com. Retrieved 18 January 2024.
10. "Ninovic wins crazy British F4 race with Saturday start and Sunday finish". formula scout.com. 14 July 2024. Retrieved 18 January 2026.
11. "[FIA Motorsport Games] Chester Kieffer, l'espoir du karting passé à la F4". mental.lu (in French). 17 October 2024. Retrieved 17 January 2026.
12. "FIA Motorsport Games Summary". acl.lu. 28 October 2024. Retrieved 18 January 2026.
13. "Porsche Sprint Challenge Southern Europe kicks of its third season in Portimão". partnerportal.porsche.com. Retrieved 18 January 2026.
14. "Strong Rounds in Barcelona reveal the champions of the Porsche Sprint Challenge Southern Europe 2025". porschesport.com. Retrieved 18 January 2026.
15. "Flynt Schuring pakt op Estoril twee zeges in de Porsche Sprint Challenge Southern Europe". autosport.nu (in Dutch). 9 February 2025. Retrieved 18 January 2026.
16. Brücker, Andy (29 November 2024). "48 Losch Motorsport: Projet NLS geet 2025 virun, Chester Kieffer wiesselt vu Formel 4 op Porsche Cup". RTL Lëtzebuerg (in Luxembourgish). Retrieved 1 December 2024.
17. "Porsche Carrera Cup France : Perrot et Jaubert se partagent les victoires à Spa". flat6mag.com (in French). 23 June 2025. Retrieved 18 January 2026.
18. "Chester Kieffer bleift Leader an der Rookie-Wäertung". rtl.lu (in French). 21 June 2025. Retrieved 17 January 2026.
19. "Chester Kieffer ass Champion an der Rookie-Kategorie". rtl.lu (in French). 7 October 2025. Retrieved 17 January 2026.
20. Kartcom. "Chester Kieffer" . Retrieved 18 January 2026.

External links

• Official website