Pirelli’s Texas Tyre Test: A Split Strategy in the Spotlight

Formula 1’s tyre supplier has confirmed a bold experiment for the Pirelli United States Grand Prix 2025.
Pirelli will bring the C1, C3, and C4 compounds to Austin, a non-consecutive mix that skips the C2 entirely.

It’s the second time this season Pirelli have gone non-sequential, after Spa-Francorchamps earlier in the year.
Heavy rain there stopped any meaningful data collection, so Austin should finally show how this experiment plays out in dry, high-load conditions.

Compound Focus

The harder C1 is a step firmer than last year’s Hard, while the Medium and Soft stay the same (C3 and C4).
That wider performance gap could split the grid between cautious one-stoppers and aggressive two-stop runs.
If the C1 holds temperature and pace, it could dominate strategy.
If the C4 resists degradation, we might see late-race sprints on the softer side.

Strategy in the Spotlight

The Circuit of the Americas is one of the most complete tracks on the calendar.
5.513 kilometres, twenty corners, and a 41-metre climb to Turn 1.
It pulls from everywhere: Suzuka’s flow, Silverstone’s rhythm, Istanbul’s loading.

Tyre stress is evenly shared front to rear, but the lateral forces are huge.
That makes the compounds work hard through Austin’s long, fast sequences and high-energy direction changes.
Heat remains the biggest threat, and with track temperatures forecast around 30°C, tyre life will again dictate the race.

Data and History

Last year told a clear story in numbers.
Fifty-four percent of all race laps were run on the Hard compound, with the Medium covering around forty-five.
The Soft barely featured, used for just one percent of the total distance.

Average stints backed it up.
Thirty laps on the Hard. Twenty-two on the Medium.
It was a race built on endurance rather than aggression.

Fifteen drivers started on the Medium, including all three podium finishers.
Only five chose the Hard. The Soft appeared once, when Esteban Ocon fitted it on the final lap to grab the fastest-lap point.

Despite early concerns about wear in the Sprint, Sunday’s race settled into a one-stop rhythm after the Safety Car neutralised the opening phase.
That control, and the improved 2024 surface, made tyre management more predictable, but not easier.
The resurfacing smoothed out the worst of the bumps. Even so, COTA’s mix of braking zones and quick transitions still punishes poor balance.

That’s the context behind Pirelli’s call this year.
They want to see whether the wider compound spread can change that pattern, to test if the softer tyres can finally play a real role instead of being left unused.

Sprint Weekend Pressure

Austin runs the Sprint format again this year, which means only one hour of practice before parc fermé.
That limited time forces teams to commit early on pressures, camber, and load settings, often before they’ve seen proper long-run degradation.

The increased difference between the Hard and Medium should, in theory, open two clear paths:

C1–C3: slower but more consistent, ideal for a one-stop.
C3–C4: quicker over a lap but vulnerable over distance.

Which direction teams choose might come down to how the track evolves across the weekend.

Track Evolution and Grip

As the rubber goes down, grip builds rapidly. It’s what Pirelli call “track evolution.”
That change in surface behaviour reduces sliding, slows degradation, and gradually brings lap times down.
It’s why Friday readings often mislead engineers, and why Sunday’s strategy calls can flip mid-race.

At Austin, the phenomenon is strong because of the Sprint format and multiple support series running laps across the weekend.
Expect the circuit to evolve more dramatically than at Spa or Monza.

The Bigger Picture

So far, the non-sequential approach has promised more than it’s delivered.
At Spa, rain washed away the comparison data. Earlier in the year, other variables blurred the outcome.

Austin is the first clean test. A weekend where Pirelli can finally measure whether the wider gap between Hard and Medium actually changes the racing.
If it does, this could become a model for future rounds where strategy has gone flat.
If it doesn’t, the experiment may quietly fade back into the archive.

For Pirelli, Austin isn’t just another Grand Prix.
It’s proof of concept.

COTA by the Numbers

The United States Grand Prix has always been a traveller.
Six different venues have carried the name. Sebring in 1959, Riverside, Watkins Glen, Detroit, Dallas, Phoenix, Indianapolis, and now Austin.

COTA has hosted twelve editions so far, but Watkins Glen still holds the record with twenty between 1961 and 1980.
Indianapolis followed with eight from 2000 to 2007. Detroit ran four in the eighties, and Phoenix had three between 1989 and 1991.
Sebring, Riverside, and Dallas each appeared once before fading into history.

Lewis Hamilton leads the tally with six victories. Five at Austin and one at Indianapolis. Just ahead of Michael Schumacher’s five from the Brickyard years.
Both share the pole-position record with four apiece.
Hamilton also sealed two of his world titles in Texas, in 2015 and 2019.

Ferrari top the constructors’ charts with eleven United States Grand Prix wins in total. Two at Watkins Glen, five at Indianapolis, and four in Austin.

Source

Official Pirelli Press Release: “A Texas Rodeo With a Jump in Compounds”

☕ Coffee Corner Take

This isn’t about tyres for tyres’ sake. It’s about whether Pirelli’s experiment can finally move the needle.
If the data holds, the Texas weekend could shape next year’s tyre strategy playbook.
If it doesn’t, they’ll know it’s back to the standard trio.

Either way, Austin will give them the clarity they’ve been waiting for.

Coming up This Week