The opening morning of the Barcelona shakedown ran behind closed doors and was interrupted several times, with Red Bull leading the running and new signing Isack Hadjar setting the unofficial pace.
Hadjar’s best-reported laps were in the mid-to-low 1:18s, with accounts listing times such as 1:18.159, 1:18.835, and 1:18.1, and a 1:20.3. Media and teams cautioned that differing tire choices and private running programs made direct comparisons unreliable. An unofficial timing stream that had been available during the session was later removed, and at least three red flags stopped running for incidents involving Franco Colapinto (Alpine), Gabriel Bortoleto (Audi), and Liam Lawson (Racing Bulls).
Only seven of the 11 teams ran on the opening day. McLaren and Ferrari deferred their appearance to later in the week, while Williams missed the shakedown after failing initial FIA crash tests, and Aston Martin’s appearance was pushed back. Mercedes completed more than 20 laps in the morning, made a midday driver change with Kimi Antonelli giving way to George Russell after lunch, then spent significant time in the garage later in the session. Haas driver Esteban Ocon logged the highest reported mileage of the day with around 154 laps, Sergio Perez largely did installation laps, and Sky Sports reporter Ted Kravitz described Red Bull’s heavy program of 108 laps as “eye-catching.”
The stop–start, closed nature of the shakedown made it primarily a debugging and mileage-gathering exercise rather than a conclusive performance test. Teams focused on reliability checks, systems validation, and running different tire compounds while keeping program details private. Hadjar’s strong debut and Red Bull’s substantial mileage were the clearest takeaways from the opening morning. However, the limited participation and red-flag interruptions mean a fuller picture of relative competitiveness will have to wait for subsequent sessions.
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