Analysis

Hadjar’s learning curve could rival Verstappen’s early trajectory, says former Red Bull engineer

Sarah Mitchell Sarah Mitchell 10 Mar 2026 4 min read
Hadjar’s learning curve could rival Verstappen’s early trajectory, says former Red Bull engineer

Isack Hadjar made an immediate impression during his first Grand Prix weekend in Australia, showcasing the raw speed and talent that caught Red Bull’s attention when promoting the 21-year-old to their Formula 1 seat. The rookie delivered standout performances in qualifying, where pure pace and precision matter most, demonstrating why the Faenza-based team saw enough potential to field him alongside Max Verstappen in 2025. Calum Nicholas, a former Red Bull mechanic who worked closely with the team’s operations, believes Hadjar’s development trajectory could actually accelerate faster than Verstappen’s did in his formative years—partly because he has the four-time world champion as a direct teammate and benchmark.

Hadjar’s impressive debut performance in Melbourne

The Australian Grand Prix served as the ideal proving ground for Hadjar’s maiden F1 outing. Competing in the RB21, Red Bull’s 2025 challenger, the young Swede demonstrated maturity beyond his years during the qualifying sessions, where small margins separate champions from backmarkers. His ability to extract consistent lap time and adapt to the car’s characteristics on a circuit he’d never raced at before spoke volumes about his preparation and natural talent. The Albert Park layout, with its tight corners and demanding braking zones, offers little forgiveness for mistakes—yet Hadjar navigated it with composure. His performance caught the attention of paddock observers and veteran engineers alike, establishing him as a prospect worth monitoring throughout the season rather than a pay driver struggling to keep pace.

The advantage of learning alongside a world champion

What makes Hadjar’s situation unique is the quality of his reference point. Max Verstappen, his teammate, arrives at each session with the mindset and methods of a four-time world champion who has dominated modern Formula 1. For a rookie, this creates both pressure and opportunity. Nicholas’s assessment highlights that Hadjar can observe Verstappen’s approach to setup changes, tire management, and racecraft in real time—knowledge that typically takes years to accumulate. Rather than learning through trial and error against midfield competitors, Hadjar has immediate access to championship-level decision-making. The mechanic’s perspective carries weight; engineers and mechanics understand driver development better than most, witnessing how different talents absorb feedback and translate it into on-track performance across multiple seasons.

Comparing learning rates: Hadjar versus young Verstappen

When Verstappen entered Formula 1 in 2015 at age 17, the circumstances differed substantially. The Dutchman joined Toro Rosso without a championship-caliber teammate to reference, competing primarily against Carlos Sainz, who was roughly at his level developmentally. Verstappen’s learning curve was steep but self-directed; he learned by racing competitors rather than studying them. Hadjar, by contrast, enters the sport with advanced simulator experience, extensive junior formula education, and the privilege of working within Red Bull’s established infrastructure. He faces Verstappen, whose feedback systems and data analysis approach have been refined across multiple championship campaigns. Nicholas suggests this structural advantage could compress the timeline for Hadjar to reach competitive maturity.

Red Bull’s strategic investment in Hadjar’s development

The decision to promote Hadjar to the senior team signals confidence from Red Bull Racing leadership. At 21, he replaces Sergio Pérez, whose inconsistent performance in 2024 created an opening for fresh talent. The team’s commitment to the rookie indicates they believe he possesses the fundamentals necessary to grow into a capable number-two driver, possibly faster. Red Bull has structured its technical programs to support rookie development—dedicated engineers, tailored simulator work, and direct access to the organization’s vast performance data. This institutional support accelerates learning in ways unavailable to independent teams. Hadjar’s integration into this ecosystem, combined with mentorship from team leadership, creates ideal conditions for rapid progression.

What Australia revealed about his potential

The opening weekend provided a small but telling sample of Hadjar’s capabilities. His qualifying pace relative to the car’s potential, his calm demeanor under pressure, and his willingness to extract maximum performance from a new machine all pointed toward someone ready for Formula 1’s demands. Mechanical mistakes were minimal; he adapted to Pirelli’s 2025 tire compounds quickly. These aren’t guarantees of long-term success, but they distinguish prospects from pretenders. Veterans recognize when a driver possesses the fundamental speed and mental resilience that Formula 1 requires.

Season ahead: measuring Hadjar’s growth trajectory

The 2025 campaign will definitively test Nicholas’s prediction. If Hadjar narrows his gap to Verstappen consistently over the opening races, develops innovative setup ideas, and demonstrates improving race management, the mechanic’s assessment gains credibility. Conversely, if he struggles with mid-corner confidence or tire warm-up, growth will proceed more gradually. The next five races—from Australia through Miami—will establish whether Hadjar’s debut brilliance represents sustainable performance or a promising beginning that requires refinement.