Pirelli has officially confirmed its tyre compound nominations for the upcoming Americas triple-header, locking in the allocations for the United States Grand Prix, the Mexico City Grand Prix, and the São Paulo Grand Prix.
The decision sets the strategic baseline for Rounds 18, 19, and 20 of the 2026 Formula 1 World Championship, marking a clear pivot in Pirelli's operational approach by abandoning the compound-skipping experiments trialed last season in North America and opting for a softer step in Brazil.
The Confirmed Allocations Across the Americas
Pirelli will supply the middle of its dry-weather range for the Circuit of the Americas before transitioning to its softest available trio for Mexico and Brazil:
- United States Grand Prix (Austin, 23–25 October): C2 (Hard), C3 (Medium), C4 (Soft)
- Mexico City Grand Prix (Autódromo Hermanos Rodríguez, 30 October – 1 November): C3 (Hard), C4 (Medium), C5 (Soft)
- São Paulo Grand Prix (Interlagos, 6–8 November): C3 (Hard), C4 (Medium), C5 (Soft)
For the race in Austin, Pirelli returns to a traditional trio of consecutive compounds. Last season, the tyre supplier tested an artificial compound gap at the venue by supplying the C1 as the hard compound alongside the C3 and C4. That same gap approach was also tested in Mexico City, where the C2 was paired with the C4 and C5.
At Interlagos, the nomination is one step softer than in 2025, bringing the C5 compound into the race allocation for the first time since 2024.
Why Pirelli Shifted Strategy
The return to consecutive compounds in Austin and Mexico City is a direct reaction to team data and race run metrics gathered during the 2025 campaign. The intention behind creating a wider delta between the hard and medium tyres was to force tactical divergence—encouraging one-stop runs on an ultra-durable hard compound versus multi-stop attacks on the softer rubber.
Instead, the performance loss of the harder compound proved too severe. Rather than utilizing the C1 in Austin or C2 in Mexico, teams largely avoided the white-marked tyre altogether, running multi-stop strategies composed almost exclusively of medium and soft stints. By nominating the C2 as the Hard for Austin and the C3 for Mexico, Pirelli brings the primary endurance tyre back into the realistic operational window for race day.
In São Paulo, Interlagos has historically generated low usage for harder selections due to the circuit's layout and surface grip characteristics. Moving to the C3, C4, and C5 selection is designed to expand strategic viability, ensuring that all three dry compounds remain usable across both sprint and grand prix distances.
Strategic Stakes for the 2026 Run-In
Tyre degradation and thermal wear will be decisive factors as the season enters its final stretch. With the 2026 aerodynamic and power unit regulations placing high traction demands on rear axle stability out of slow corners, tyre preservation has become a central battleground.
Heading into Austin for Round 18, the championship landscape is led by Mercedes. Kimi Antonelli commands the Drivers' Championship with 340 points and eight victories, holding a 102-point advantage over teammate George Russell (238 points, three wins). Behind them, Lewis Hamilton holds third for Ferrari with 229 points, narrowly ahead of Red Bull's Max Verstappen (221 points) and Charles Leclerc (215 points). In the Constructors' Championship, Mercedes leads with 578 points over Ferrari (444 points), McLaren (339 points), and Red Bull (332 points).
With Circuit of the Americas featuring standard format running—three practice sessions ahead of Saturday qualifying—teams will have ample track time to validate degradation deltas between the C2, C3, and C4 compounds before locking in their race plans.
For full mathematical breakdowns, sector pace projections, and stint simulations ahead of the upcoming race weekend, explore our latest race predictions.
