Isack Hadjar arrived on the Formula 1 grid in 2025 as one of the most closely watched rookies of the season. Born in Paris on September 28, 2004, to an Algerian family, he holds dual French and Algerian citizenship and competes under the French flag. His rapid promotion through the Red Bull development system earned him a seat at Racing Bulls for his debut campaign.
Hadjar’s journey to F1 followed a fast but structured path: karting from the age of seven, French Formula 4, regional Formula 3 competitions, and a place in the Red Bull Junior Team by 2022. After a strong 2024 Formula 2 season where he finished runner-up to Gabriel Bortoleto, he secured a race seat for 2025. Yet despite his growing public profile, several details about his personal background remain unconfirmed by official sources.
What is Isack Hadjar’s nationality and flag?
Key insights about Hadjar’s identity and career
- Isack Hadjar was one of the final rookies confirmed for the 2025 Formula One season after a dramatic winter reshuffle within the Red Bull structure.
- He joined the Red Bull Junior Team in 2022 at age 17 and won four races in the FIA Formula 3 Championship.
- His dual French-Algerian heritage frequently generates questions about his nationality and which flag he represents.
- Official profiles on Formula1.com and Red Bull Racing’s website do not consistently publish personal attributes such as height or religion.
- His F1 debut at the 2025 Australian Grand Prix ended on the formation lap after he spun into the barriers.
- He scored his first championship points at the Japanese Grand Prix, finishing eighth after qualifying seventh.
Snapshot facts
| Category | Detail |
|---|---|
| Full name | Isack Alexandre Hadjar |
| Born | 28 September 2004, Paris, France |
| Age | 20 (as of the 2025 season) |
| Nationality | French and Algerian (dual citizenship) |
| Competition licence | French |
| 2025 team | Visa Cash App Racing Bulls |
| Junior programme | Red Bull Junior Team (joined 2022) |
| Immediate prior series | Formula 2 (2024, runner-up) |
| Height | Not officially confirmed (~185 cm estimated by some sources) |
| Religion | Not publicly confirmed |
| Father | Yassine Hadjar (research scientist, optics) |
Hadjar’s nationality is clearly established: he was born and raised in Paris, holds French citizenship, and also carries Algerian nationality through his family background. He races under a French licence and the French flag, according to Formula1.com and his Wikipedia entry.
Who are Isack Hadjar’s parents and does he have a sister?
Father and family background
Hadjar was born and raised in Paris in an Algerian family. His father, Yassine Hadjar, is a research scientist at the University of Technology of Troyes who specialises in optics, according to a profile on the Red Bulletin. The same source reports that his family includes highly qualified physicians and physicists, and that motorsport was not a family tradition before Isack took up karting.
Both of Hadjar’s parents are of Algerian heritage. His father’s name and profession are documented, but his mother’s name has not been publicly disclosed in any of the reliable profiles reviewed. The family’s academic background in science and medicine stands in contrast to the world of professional racing.
Sibling questions
No reliably documented public information confirms that Hadjar has a sister or identifies one by name. Some unverified claims about his siblings have circulated online, but authoritative sources such as Formula1.com, Red Bull Racing’s official site, and Wikipedia do not list any sibling. Claims about his brothers or sisters should therefore be treated with caution until confirmed by Hadjar himself or a trusted media outlet.
How tall is Isack Hadjar and what is his religion?
Height
Hadjar’s height is not consistently published by Formula 1’s official channels or by his team. Some sources list it at approximately 185 cm (6 ft 1 in), but profiles on Formula1.com and the Red Bull Racing website do not include this measurement. The figure commonly cited appears to be an estimate derived from photographs rather than an official team measurement.
Religion
No reliable public source confirms Hadjar’s religious beliefs. His first name is Arabic and his family background is Algerian, but neither of these facts establishes a religion. No interview, biography, or official profile available in the public record addresses this aspect of his personal life. Any claims about his religion are speculative and should be recognised as such.
Neither Hadjar’s height nor his religion appear in any official F1 or team documentation. The absence of this information from authoritative sources like Formula1.com, the Red Bull Racing team site, and Wikipedia means that any figures currently in circulation are unofficial estimates or speculation.
What is Isack Hadjar’s injury status and merchandise availability?
Injury status
No major confirmed injury is documented in the reliable profiles reviewed. Hadjar’s retirement from the 2025 Australian Grand Prix was caused by a formation-lap crash into the barriers, but no physical injury was reported from that incident. The available sources do not indicate that he has missed any races because of injury.
Merchandise availability
Official merchandise for Isack Hadjar is not yet widely available, which is typical for a rookie driver. Fans interested in team apparel can check the Red Bull Racing online shop or the official F1 store for future releases as his public profile grows.
Hadjar’s Australian Grand Prix retirement was caused by a formation-lap crash rather than a reported physical injury. All available sources indicate he has participated in every race weekend of his debut season.
How did Isack Hadjar progress from karting to Formula 1?
- 2004: Born in Paris, France.
- 2011–2018: Began competitive karting at approximately seven years old.
- 2019: Entered single-seater racing in the French Formula 4 championship and finished seventh.
- 2020: Finished third in the French F4 Championship with the FFSA Academy.
- 2021: Competed in Formula Regional European and Asian F3, scoring multiple victories in his rookie season.
- 2022: Joined the Red Bull Junior Team after a strong performance in Monaco that marked a turning point in his career.
- 2023: Made his Formula 2 debut with Hitech, finishing 14th, and took part in F1 practice with AlphaTauri in Mexico.
- 2024: Moved to Campos Racing in Formula 2 and finished runner-up to Gabriel Bortoleto despite a technical issue in the final round.
- December 2024: Announced as a Racing Bulls driver for the 2025 Formula 1 season.
- 2025: Made his F1 debut, scored his first championship points in Japan, and secured his maiden podium at the Dutch Grand Prix, becoming the youngest Frenchman to stand on an F1 podium.
Sources for this timeline include Formula One History, Motorsport Australia, and Honda’s F1 driver page.
What information about Isack Hadjar is verified and what remains unclear?
| Established information | Information that remains unclear |
|---|---|
| Nationality: French and Algerian, competes under French flag | Height: not consistently published by official sources; estimates vary |
| Date of birth: 28 September 2004 in Paris | Religion: no public statement exists from Hadjar or his representatives |
| Career path: karting, F4, regional F3, F2, then Racing Bulls in F1 | Sibling: no reliably documented confirmation that he has a sister or brother |
| Father’s name and profession: Yassine Hadjar, research scientist in optics | Mother’s name: not publicly disclosed in any authoritative source |
| 2025 F1 debut details and results | Injury history: no confirmed reports of injury affecting his racing |
What does Isack Hadjar’s career path reveal about Red Bull’s driver programme?
Hadjar’s rise through the Red Bull development system follows a well-established pattern the team has used with drivers such as Max Verstappen, Pierre Gasly, and Sergio Pérez. The programme identifies talented drivers in junior categories, places them in its own teams, and provides opportunities for practice sessions and testing in Formula 1 machinery before a full race seat materialises.
His progression was notably rapid: he joined the Red Bull Junior Team in 2022, competed in Formula 3 and Formula 2 over the next two years, and secured a Racing Bulls seat for 2025. The 2024 season was pivotal, with his runner-up finish in Formula 2 leading directly to the promotion. In 2026 he was promoted again, this time to the senior Red Bull Racing team alongside Max Verstappen.
Hadjar’s dual heritage also makes him a recognisable figure in a sport that continues to grow its global audience. His background is frequently highlighted in media coverage of the 2025 rookie class.
Where can fans find authoritative information about Isack Hadjar?
“Isack Alexandre Hadjar is a French and Algerian racing driver who competes under the French flag in Formula One for Red Bull Racing.”
“Isack Hadjar was the final rookie to be announced for the 2025 season after a dramatic winter reshuffle at Red Bull.”
— Formula1.com
“Making his motorsports debut in 2014, Isack would become a Red Bull Junior Driver in 2022 at the age of 17.”
The most reliable sources for factual information about Hadjar are the official Formula 1 website, the Red Bull Racing team site, and his Wikipedia entry, all of which are updated regularly. Social media accounts including his verified Instagram profile offer personal content but should not be treated as primary sources for biographical data.
What is the overall assessment of Isack Hadjar’s Formula 1 potential?
Hadjar’s path to F1 followed a conventional but rapid Red Bull development route: French Formula 4, regional formulae, Red Bull Junior Team membership, Formula 2, and then Racing Bulls. His 2025 season combined a difficult debut at the Australian Grand Prix with a rapid recovery, early championship points in Japan, and a surprise podium at the Dutch Grand Prix. That result made him the youngest Frenchman to stand on an F1 podium and established him as one of the most promising young drivers within the Red Bull organisation. His promotion to the senior Red Bull Racing team for 2026 underlines the confidence the programme has in his long-term potential. For the latest race results and team announcements, fans can follow the Racing Bulls and Red Bull Junior Team pages.
Frequently asked questions about Isack Hadjar
What is Isack Hadjar’s full name?
His full name is Isack Alexandre Hadjar.
How old is Isack Hadjar?
He was born on September 28, 2004, making him 20 years old during the 2025 Formula 1 season.
What championship did Isack Hadjar win before reaching Formula 1?
He did not win a championship outright. His best result was runner-up in the 2024 Formula 2 season with Campos Racing.
What happened at Isack Hadjar’s first Formula 1 race?
At the 2025 Australian Grand Prix, he qualified 11th but spun into the barriers on the formation lap and was unable to start the race.
When did Isack Hadjar join the Red Bull Junior Team?
He joined the Red Bull Junior Team in 2022 at the age of 17 after a strong performance in the junior categories.
Is Isack Hadjar on social media?
Yes, he has verified accounts on Instagram (@isackhadjar) and X (Twitter, @Isack_Hadjar).
What team will Isack Hadjar drive for in 2026?
He was promoted to the senior Red Bull Racing team for the 2026 season alongside Max Verstappen.
Has Isack Hadjar won a Formula 1 race?
As of the end of the 2025 season, he has not won a Grand Prix. His best result is a podium finish at the 2025 Dutch Grand Prix.
Jack Sutton is Senior Reporter at RegionalReport.co.uk, covering breaking regional news, councils, transport, business and community stories across the UK.