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Isack Hadjar will step up to Red Bull Racing in 2026, partnering Max Verstappen. His first duty is testing Pirelli’s 2026 tyres, a key initiation under F1’s evolving technical landscape.
Helmut Marko sets the tone: speed alone won’t suffice. He wants Hadjar to curb emotional spikes, noting the steering wheel isn’t to blame when frustration strikes.

The promotion follows a measured Racing Bulls audition. Initial doubts about readiness softened as results improved, prompting a late call to replace Yuki Tsunoda for 2026.
Aside from a formation‑lap crash in Australia, Hadjar delivered points-finishing pace and a timely breakthrough podium at Zandvoort. That result effectively sealed his elevation alongside Verstappen.
Raw speed is evident on unfamiliar circuits, yet execution fluctuated. China exposed strategy misreads, while mechanical issues, including a front-wing failure causing a puncture in Qatar, clouded multiple weekends.
Marko’s messaging remains consistent: praise is sparing, expectations are explicit. Public comments emphasize composure, accountability, and extracting results without theatrics, mirroring Red Bull’s culture under extreme competitive pressure.
The Verstappen benchmark is uncompromising. Hadjar must contribute consistent points while staying within strategic parameters that maximize team haul, especially if the constructors’ fight tightens under the 2026 regulations.
Communication will be under scrutiny. Verstappen rarely criticizes publicly; Hadjar’s candor needs calibration to avoid undermining processes, particularly when reliability or operational errors test patience.
Short term, winter testing is the proving ground. Learning tyre characteristics, validating setup windows, and integrating with Red Bull’s systems will dictate how quickly he reaches a dependable baseline.
The opportunity is substantial, but so is the accountability. If emotional control matches his speed, Hadjar can become a reliable second axis to Verstappen and reinforce Red Bull’s title campaigns.
2026: The Real Test Begins
All eyes on Hadjar’s winter testing vs. Verstappen

Daniel Miller reports on Formula 1 Grand Prix weekends with race-day analysis, team-radio highlights, and point-standings updates. He explains power-unit upgrades, aerodynamic developments, and driver rivalries in straightforward, SEO-friendly language for a global F1 audience.