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Sunday, June 15, 2025

how tire selections and graining may shake up the Montreal race


The Canadian GP guarantees to be an unpredictable occasion. It’s normally filled with uncertainties because of altering climate situations all through the weekend. This yr, nevertheless, regardless of the forecasts remaining pretty secure to date and anticipated to remain that manner tomorrow, the very mushy tire nomination on a low-grip and usually soiled monitor will increase the chance of graining.

A phenomenon that affected all the highest groups throughout Friday’s race tempo simulations. Probably the most affected was Ferrari, which may solely run with Lewis Hamilton because of Charles Leclerc’s absence following his FP1 crash. Earlier than sharing our ideas, let’s evaluation the recommendation Pirelli gave to the groups after qualifying.

Pirelli’s recommendation – Circuit Gilles Villeneuve – 70 laps
The primary concern is unquestionably graining and the usage of C4 and C5 compounds in race mode. Mario Isola, Pirelli motorsport director, was very clear and concise: “Extending the 2025 compound vary is creating quite a lot of approaches amongst groups and drivers in tire utilization all through the weekend, which can replicate on the race. From a method perspective, we predict a two-stop stays essentially the most believable choice, favoring Medium and Exhausting tires. The one-stop technique is theoretically legitimate however unlikely to repay, contemplating overtaking is feasible right here and the time misplaced within the pit lane for tire adjustments is sort of restricted (round 18 seconds),” based on the assertion from the Pirelli crew.

Graining and quick stops may open the door to a three-stop state of affairs
It’s no secret that the C6 shouldn’t be essentially the most appropriate tire for the race. The brand new Pirelli compound, on one of these circuit—as seen already at Imola—doesn’t make a distinction. In qualifying it’s typically even ignored and can doubtless be much more so in the course of the race.

The GP opens as much as numerous methods, largely relying on the remaining tire units accessible to the drivers. We agree with Pirelli that the quickest technique, at the least on paper, shall be a two-stop plan like Medium-Medium-Exhausting or Exhausting-Exhausting-Medium. It have to be famous that the C5, the yellow compound this yr, remains to be very mushy and, as seen already on Friday (race tempo knowledge), suffers quite a bit from graining.

If drivers can handle stints of about 20 laps on the C5, then the M-M-H technique turns into potential; in any other case, if degradation is excessive and an early pit cease is important, they are going to change to M-H-H or, in the event that they don’t have two units of C4, change plans in direction of a three-stop technique doubtless involving the Delicate tire.

Utilizing the Delicate C6, in our opinion, shall be extra a matter of necessity (because of shortages of different compounds) somewhat than efficiency. We consider that these beginning on Delicate have both already dedicated to a three-stop or need to attempt to achieve a bonus with an early undercut, hoping to choose up positions whereas operating on Exhausting tires in clear air. These beginning on Delicate will doubtless go S-H-H or three stops.

If pressured to make use of Delicate, we advocate utilizing it within the remaining stint. The extra rubbered-in monitor will assist handle graining higher. Given qualifying efficiency, nevertheless, we don’t consider the C6 can supply a constant efficiency benefit over the C5. Once more, its use shall be extra out of necessity.

For these with a scarcity of Medium and Exhausting tires—just one set of every accessible—a two-stop technique together with all three compounds is feasible. Even in that case, the very best method could be to make use of Delicate within the final section of the race.

If graining is excessive, we may see two situations the place each undercuts and overcuts might be very efficient. Pitting early permits gaining monitor place over drivers on worn tires initially, however these pitting late would possibly achieve a bonus over those that modified tires too early.

Abstract
The 2-stop technique is on paper the best choice, however for the reason that pit cease time is pretty quick (18 seconds), three stops might be a really fascinating various, particularly if graining is extreme. In Canada, potential security vehicles should even be thought of, as a Security Automotive deployment is all the time doubtless. The groups will have to be adept at capitalizing on each alternative, particularly utilizing a free pit cease to achieve a bonus.

Sofia Bianchi

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