The Spanish Grand Prix at the Circuit de Barcelona-Catalunya is developing into a demanding tyre-management contest. Long-run data gathered at the end of Friday’s second free practice session pointed to one clear trend: unusually heavy degradation across the Formula 1 grid.

In several cases, drivers lost as much as five seconds of pace over just ten laps, even on the C3 compound, which is being used as the medium tyre this weekend.

If that level of degradation persists, it could significantly alter the competitive order on race day.

Charles Leclerc set the strongest long-run figures for Ferrari, and the Scuderia may have arrived with a useful advantage. The team brought eight upgrades to the SF-26 in Spain, while also featuring a car that has traditionally struggled to generate tyre temperature but tends to protect its tyres once they are in the operating window — a potentially valuable trait in Barcelona.

After adjusting for stint length and tyre compounds, Leclerc was 0.16 seconds per lap quicker than Mercedes’ Kimi Antonelli. Mercedes, however, had mixed long-run results, with Lewis Hamilton +0.83s off and George Russell +1.4s behind the benchmark.

Ferrari’s Barcelona pace comes as a surprise

Charles Leclerc, Ferrari

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The signs are unexpected, as Barcelona has not typically been one of Ferrari’s strongest venues in recent seasons. Mercedes and McLaren have often looked more comfortable around the Circuit de Barcelona-Catalunya.

Reigning world champions McLaren were, on average, 0.39 seconds per lap slower in long-run trim and also struggled with high tyre wear. The team did appear stronger over a single lap, as did Mercedes.

That makes it difficult to identify a clear favourite for the rest of the weekend. Teams still have time to review the data and refine their set-ups, so the balance of performance could still shift before Sunday.

Red Bull left searching for answers

Isack Hadjar, Red Bull Racing

Photo by: Sam Bagnall / Sutton Images via Getty Images

Red Bull is also proving difficult to judge. Max Verstappen managed only sixth in the qualifying simulations, while the team’s long-run pace, +0.45 seconds, was broadly in line with McLaren’s and left it behind Ferrari and Mercedes.

Red Bull looked particularly strong through the high-speed first sector but lost time in the corners. Ferrari, meanwhile, struggled on the straights but gained significant time in the second sector. Mercedes and McLaren appeared more consistent across all three sectors.

Midfield: Audi and Racing Bulls continue strong form

Gabriel Bortoleto, Audi F1 Team

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In the midfield, Racing Bulls and Audi again impressed, building on the form they showed in Monaco. Arvid Lindblad finished seventh in the second practice session, while Gabriel Bortoleto followed closely behind in eighth for Audi. The German team also looked solid during long-run simulations.

Nico Hulkenberg recorded the strongest long-run performance among the midfield runners, averaging a 1.02-second deficit to the outright pace and sitting comfortably ahead of the rest. Haas driver Oliver Bearman was the next-best midfield performer, but he was already nearly two seconds per lap off.

Williams endured a tougher day. The team has not scored points in Barcelona for ten years, and its current pace does not suggest that run is likely to end this weekend. Williams’ long-run deficit stood at 2.75 seconds per lap, with only Cadillac (+3.13s) and Aston Martin (+4.56s) slower.

Tyre management set to define the race

Oscar Piastri, McLaren, Lando Norris, McLaren

Photo by: Sam Bagnall / Sutton Images via Getty Images

Tyres remain the central issue of the weekend. Degradation was extremely high on Friday, and even in qualifying trim the performance gap between the three compounds appeared relatively small. The expected advantage from switching from the medium to the soft tyre did not fully materialise.

For the Spanish Grand Prix, Pirelli selected a softer tyre range, bringing the C2, C3 and C4 compounds rather than the usual C1 to C3 selection. Even so, a two-stop strategy was already the quickest option last year, and current conditions make it look increasingly likely.

“We wanted to encourage more pit stops, at least more than one,” Pirelli Motorsport Director Dario Marrafuschi told Sky. “We expected two stops, but under these conditions tyre degradation is becoming very severe.”

“The rear tyres are overheating significantly, making life extremely difficult for the drivers. On Sunday, at least two pit stops will probably be necessary — anything beyond that will depend on the conditions.”

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