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// Workers AI · dad joke modeWho's Chester Kieffer? Kieffer to find out.

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From Wikipedia, the free encyclopedia

Chester Kieffer
Kieffer at the Red Bull Ring in 2026
NationalityLuxembourg Luxembourger
Born (2006-07-23) 23 July 2006 (age 20)
Luxembourg City, Luxembourg
Porsche Carrera Cup Germany career
Debut season2026
Current teamSchumacher CLRT
Categorisation FIA Silver
Car number11
Starts14
Wins1
Podiums2
Poles0
Fastest laps2
Best finishTBD in 2026
Previous series
2025
2025

2024

2024
2024
2024		Porsche Carrera Cup France
Porsche Sprint Challenge Southern Europe
FIA Motorsport Games Formula 4 Cup
F4 British Championship
French F4 Championship
Formula 4 UAE Championship

Chester Kieffer (born 23 July 2006) is a Luxembourgish racing driver who competes in Porsche Supercup and Porsche Carrera Cup Germany for Schumacher CLRT.

Career

[edit]

Kieffer began karting at age 15 and made his single-seater debut in the 2023 Ultimate Cup Series Challenge Monoplace season finale at Paul Ricard, where he won all three races in the F4 class.[1] Kieffer then contested round three of the 2024 Formula 4 UAE Championship for X GP at the Dubai Autodrome, where his highest result was fifteenth in race one.[2]

Kieffer driving at the Nürburgring in French F4 in 2024.

Kieffer's main campaign of 2024 was the French F4 Championship, where he received backing from the Winfield Racing School and enjoyed success in the first half of the season.[3] He got his maiden pole position, podium and win in round two at Lédenon and became the first Luxembourger to win an FIA-sanctioned single seater race.[4][5][6] He picked up another podium in race three that weekend, before winning again in the next round at the Circuit de Spa-Francorchamps.[7] After that, Kieffer only mustered three points finishes from the last 12 races – a highest of sixth at the Nürburgring.[8] Despite this, Kieffer managed to hang onto fourth in the drivers' championship with 116 points.[9]

Kieffer also made a cameo in round six of the 2024 F4 British Championship with Xcel Motorsport at Zandvoort, the only international round in the season, and scored four bonus points for overtaking four cars on his way to 19th in race two.[10][11] In late 2024, Kieffer represented Team Luxembourg in the FIA Motorsport Games Formula 4 Cup at Paul Ricard and finished sixth in the main race.[12][13]

Porsche Cup racing

[edit]

In 2025, Kieffer switched from Formula 4 to one-make Porsche racing and kicked off his season in the Porsche Sprint Challenge Southern Europe with CLRT Schumacher, where he claimed two pole positions at Portimão, a podium at Estoril, won the rookie title and finished third in the main championship.[14][15][16] Kieffer then competed full-time in the Porsche Carrera Cup France for CLRT Schumacher, scoring his only podium in round three at Circuit de Spa-Francorchamps.[17][18] Kieffer consistently finished in the top 10 throughout the season, beating Enzo Joulié to the rookie title and ending the overall championship in sixth.[19][20]

In 2026, Kieffer stayed with Schumacher CLRT to compete in Porsche Carrera Cup Germany and make his Porsche Supercup debut.[21][22] After a podium at Zandvoort,[23] Kieffer achieved his first PCCD win in the penultimate round at the Nürburgring.[24][25][26] In Supercup, Kieffer secured back-to-back second-place finishes at Spa and the Hungaroring, and never finished lower than 10th.[27][28][29] He ended the season fourth in the standings, as the rookies' champion.[30][31]

Personal life

[edit]

Kieffer is coached by 2022 Porsche Supercup champion and fellow Luxembourger Dylan Pereira.[32]

Karting record

[edit]

Karting career summary

[edit]
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:[33]

Racing record

[edit]

Racing career summary

[edit]
Season Series Team Races Wins Poles F/Laps Podiums Points Position
2023 Ultimate Cup Series Challenge Monoplace - F4 Formula Motorsport 3 3 1 3 3 84 2nd
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†
2026 Porsche Carrera Cup Germany Schumacher CLRT 14 1 0 2 2 98* 7th*
Porsche Supercup 8 0 0 0 2 82 4th

* Season still in progress.

Complete Formula 4 UAE Championship results

[edit]

(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

[edit]

(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

[edit]

(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 Sprint Challenge Southern Europe results

[edit]

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

Year Team 1 2 3 4 5 6 7 8 Pos Points Ref
2025 CLRT Schumacher ALG
1
4		 ALG
2
5		 EST
1
7		 EST
2
3		 VAL
1
5		 VAL
2
7		 CAT
1
Ret		 CAT
2
7		 3rd 78 [34]

Complete Porsche Carrera Cup France results

[edit]

(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

Complete Porsche Carrera Cup Germany results

[edit]

(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 DC Points
2026 Schumacher CLRT IMO
1
7		 IMO
2
Ret		 RBR
1
Ret		 RBR
2
16		 SPA
1
8		 SPA
2
5		 ZAN
1
3		 ZAN
2
12		 LAU
1
25		 LAU
2
Ret		 NOR
1
11		 NOR
2
8		 NÜR
1
5		 NÜR
2
1		 HOC
1
 HOC
2
 7th* 98*

*Season still in progress.

Complete Porsche Supercup results

[edit]

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

Year Team 1 2 3 4 5 6 7 8 Pos. Points
2026 Schumacher CLRT MON
10		 CAT
8		 RBR
7		 SPA
2		 HUN
2		 ZAN
1
4		 ZAN
2
Ret		 MNZ
6		 4th 82

* Season still in progress.

References

[edit]
  1. ↑ "Ultimate Cup Series 2023 - Le Castellet 2 - Challenge Monoplace". ITS RESULTS. 25 November 2023. Retrieved 29 August 2026.
  2. ↑ "Freddie Slater Leads as F4 UAE Championship Resumes in Dubai". Formula 4 UAE Championship. 31 January 2024. Archived from the original on 22 June 2024. Retrieved 17 January 2026.
  3. ↑ Series, Feeder (13 June 2024). "Luxembourg's rising star in French F4: Who is Chester Kieffer?". Feeder Series. Retrieved 29 November 2024.
  4. ↑ "Taito Kato and Chester Kieffer share French F4 poles at Ledenon". formulascout.com. 10 May 2024. Retrieved 17 January 2026.
  5. ↑ "Chester Kieffer veut conserver la trajectoire idéale à Spa". lessentiel.lu (in French). 21 June 2024. Archived from the original on 20 September 2026. Retrieved 17 January 2026.
  6. ↑ "Chester Kieffer and Frank Porte Ruiz win at Ledenon in French F4". formulascout.com. 11 May 2024. Retrieved 17 January 2026.
  7. ↑ "Chester Kieffer takes second F4 win at Spa Francorchamps". Kartcom.com. 23 June 2024. Archived from the original on 2 October 2025. Retrieved 17 January 2026.
  8. ↑ "A top six finish after an eventful weekend at the Nürburgring". kartcom.com. Archived from the original on 2 October 2025. Retrieved 18 January 2026.
  9. ↑ "Tight title fight and many surprises: French F4 season review". f1feederseries.net. 14 December 2024. Archived from the original on 27 December 2024. Retrieved 18 January 2026.
  10. ↑ "Nobels, Kieffer and Rivera to make ROKiT British F4 debuts at Zandvoort". fiaformula4.com. Archived from the original on 13 July 2024. Retrieved 18 January 2024.
  11. ↑ "Ninovic wins crazy British F4 race with Saturday start and Sunday finish". formula scout.com. 14 July 2024. Archived from the original on 16 January 2026. Retrieved 18 January 2026.
  12. ↑ "[FIA Motorsport Games] Chester Kieffer, l'espoir du karting passé à la F4". mental.lu (in French). 17 October 2024. Archived from the original on 30 December 2025. Retrieved 17 January 2026.
  13. ↑ "FIA Motorsport Games Summary". acl.lu. 28 October 2024. Archived from the original on 28 December 2025. Retrieved 18 January 2026.
  14. ↑ "Porsche Sprint Challenge Southern Europe kicks of its third season in Portimão". partnerportal.porsche.com. Retrieved 18 January 2026.
  15. ↑ "Strong Rounds in Barcelona reveal the champions of the Porsche Sprint Challenge Southern Europe 2025". porschesport.com. Archived from the original on 12 September 2026. Retrieved 18 January 2026.
  16. ↑ "Flynt Schuring pakt op Estoril twee zeges in de Porsche Sprint Challenge Southern Europe". autosport.nu (in Dutch). 9 February 2025. Archived from the original on 25 July 2025. Retrieved 18 January 2026.
  17. ↑ 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). Archived from the original on 30 November 2024. Retrieved 1 December 2024.
  18. ↑ "Porsche Carrera Cup France : Perrot et Jaubert se partagent les victoires à Spa". flat6mag.com (in French). 23 June 2025. Archived from the original on 21 January 2026. Retrieved 18 January 2026.
  19. ↑ "Chester Kieffer bleift Leader an der Rookie-Wäertung". rtl.lu (in French). 21 June 2025. Archived from the original on 12 September 2026. Retrieved 17 January 2026.
  20. ↑ "Chester Kieffer ass Champion an der Rookie-Kategorie". rtl.lu (in French). 7 October 2025. Retrieved 17 January 2026.
  21. ↑ "Neues Auto, volles Fahrerfeld – der Porsche Sixt Carrera Cup Deutschland startet in die Saison". Porsche Motorsport Hub (in German). 27 March 2026. Retrieved 20 April 2026.
  22. ↑ "Chester Kieffer aims for Porsche Supercup rookie crown". today.rtl.lu. 5 June 2026. Retrieved 27 August 2026.
  23. ↑ "Victory after race interruption: Schuring claims fourth consecutive win". www.porschesport.com. 24 May 2026. Retrieved 27 August 2026.
  24. ↑ "Premierenerfolg: Chester Kieffer feiert Start-Ziel-Sieg am Nürburgring". www.tageblatt.lu (in German). 16 August 2026. Archived from the original on 29 August 2026. Retrieved 27 August 2026.
  25. ↑ "Luxembourg's Chester Kieffer claims win at Porsche Carrera Cup in Germany". today.rtl.lu. 16 August 2026. Retrieved 27 August 2026.
  26. ↑ "Maiden victory for rookie Chester Kieffer in action-packed race". newsroom.porsche.com. 16 August 2026. Archived from the original on 16 August 2026. Retrieved 18 September 2026.
  27. ↑ "Sieg in Spa: Porsche-Junior Flynt Schuring baut Führung im Supercup aus". www.motorsport-xl.de (in German). 20 July 2026. Retrieved 27 August 2026.
  28. ↑ "Victory at Spa: Porsche Junior Flynt Schuring Extends Supercup Lead". newsroom.porsche.com. 19 July 2026. Retrieved 18 September 2026.
  29. ↑ "Flynt Schuring, Chester Kiefer and Schumacher CLRT leaders of the Porsche Mobil 1 Supercup". www.start84.nl (in Dutch). Retrieved 27 August 2026.
  30. ↑ "Chester Kieffer ka sech zu Monza den Titel an der Rookie-Wäertung sécheren". www.rtl.lu (in Luxembourgish). 6 September 2026. Archived from the original on 7 September 2026. Retrieved 7 September 2026.
  31. ↑ "Chester Kieffer is the Porsche Mobil 1 Supercup Rookie Champion". newsroom.porsche.com. 6 September 2026. Retrieved 18 September 2026.
  32. ↑ "Chester Kieffer aims for Porsche Supercup rookie crown". today.rtl.lu. 5 June 2026. Retrieved 27 August 2026.
  33. ↑ Kartcom. "Chester Kieffer". Retrieved 18 January 2026.
  34. ↑ "2025 Porsche Sprint Challenge Southern Europe Championship Standings". www.driverdb.com. Archived from the original on 1 September 2025. Retrieved 20 April 2026.
[edit]
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