Alexander Albon, Williams, Bahrain International Circuit, 2025 pre-season test

Sainz on top again, Hamilton low on mileage: Key figures from pre-season testing

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For the second year in a row, Carlos Sainz Jnr set the quickest lap time of any driver in pre-season testing.

He’s changed teams since then, so the bragging rights for fastest overall time go to Williams. But as we all know, headline testing times don’t reveal who is fast and who isn’t. For the same reason, constructors’ champions McLaren are unlikely to be alarmed they only set the fifth-fastest time.

Three days of running in Bahrain have yielded some noteworthy data, however.

2025 pre-season lap times

The most striking feature of the teams’ lap times this year is how close they are. This appears to support the view that the field would continue to tighten up in the fourth year under largely unchanged technical regulations.

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2025 pre-season lap times compared to last year’s test and grand prix

Three teams stand out when comparing their lap times from this week to the test and grand prix at the same track last year.

Pierre Gasly, Alpine, Bahrain International Circuit, 2025 pre-season test
Gasly set quick laps in the Alpine on Friday
Williams and Alpine are the only teams whose lap times this week were quicker than they managed in the Bahrain test and race last year. That’s a good indication of real progress, some of which was visible during the course of last season.

Both these teams have indicated the opportunity offered by next year’s rules change is a particular priority for them. They appear to have begun this year with cars closely based on those they had at the end of last season. They should therefore be able to exploit their available performance more easily, which may be reflected in the times, but it remains to be seen what development potential they will have over the year ahead.

Sauber’s times also stand out for two reasons. They are the only team who lapped slower this week than they did in both the grand prix and the test last year, which is a discouraging sign. This was memorably the case for Ferrari in pre-season testing five years ago, and that team went on to endure a tough season.

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2025 pre-season mileages compared to last year’s test

Despite several bizarre interruptions – including a power cut, a smashed pane of glass and a wayward bus – the 10-team field got more testing done than last year. Together they racked up 3,896 – almost 200 more than in 2024.

However there was a significant gap between those who did the most and the least. Mercedes, the busiest team of all, covered 50% more running than rivals Red Bull. That 833-kilometre difference is the same as more than two grands prix.

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Drivers summaries

Lewis Hamilton, Ferrari, Bahrain International Circuit, 2025 pre-season test
Hamilton fell short on mileage
The timings of the various disruptions affected some drivers more than others. Esteban Ocon was the busiest driver in Bahrain, covering 260 laps, over four-and-a-half grand prix distances.

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Any driver like Ocon who was adjusting to new teams would have welcomed that kind of mileage. Lewis Hamilton, however, did almost 100 fewer laps in his Ferrari, after his final day in the car came to an early end due to an apparent technical problem.

The only drivers who covered fewer laps than he did were the Red Bull pair and Lance Stroll. The latter had to sit out most of the final day as he was unwell.

Position No. Driver Team Model Engine Best time Deficit Best time day Total laps
1 55 Carlos Sainz Jnr Williams FW47 Mercedes 1’29.348 Thursday 195
2 44 Lewis Hamilton Ferrari SF-25 Ferrari 1’29.379 0.031 Thursday 162
3 16 Charles Leclerc Ferrari SF-25 Ferrari 1’29.431 0.083 Thursday 220
4 63 George Russell Mercedes W16 Mercedes 1’29.545 0.197 Friday 232
5 1 Max Verstappen Red Bull RB21 Red Bull 1’29.566 0.218 Friday 155
6 23 Alexander Albon Williams FW47 Mercedes 1’29.650 0.302 Friday 200
7 12 Andrea Kimi Antonelli Mercedes W16 Mercedes 1’29.784 0.436 Thursday 226
8 81 Oscar Piastri McLaren MCL39 Mercedes 1’29.940 0.592 Friday 195
9 10 Pierre Gasly Alpine A525 Renault 1’30.040 0.692 Friday 196
10 18 Lance Stroll Aston Martin AMR25 Mercedes 1’30.229 0.881 Thursday 133
11 30 Liam Lawson Red Bull RB21 Red Bull 1’30.252 0.904 Thursday 149
12 7 Jack Doohan Alpine A525 Renault 1’30.368 1.020 Thursday 209
13 4 Lando Norris McLaren MCL39 Mercedes 1’30.430 1.082 Wednesday 186
14 22 Yuki Tsunoda Racing Bulls 02 Red Bull 1’30.497 1.149 Friday 211
15 6 Isack Hadjar Racing Bulls 02 Red Bull 1’30.675 1.327 Thursday 243
16 14 Fernando Alonso Aston Martin AMR25 Mercedes 1’30.700 1.352 Thursday 173
17 31 Esteban Ocon Haas VF-25 Ferrari 1’30.728 1.380 Friday 260
18 5 Gabriel Bortoleto Sauber C45 Ferrari 1’31.057 1.709 Thursday 174
19 27 Nico Hulkenberg Sauber C45 Ferrari 1’31.457 2.109 Thursday 180
20 87 Oliver Bearman Haas VF-25 Ferrari 1’32.361 3.013 Friday 197

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Author information

Keith Collantine
Lifelong motor sport fan Keith set up RaceFans in 2005 - when it was originally called F1 Fanatic. Having previously worked as a motoring...

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13 comments on “Sainz on top again, Hamilton low on mileage: Key figures from pre-season testing”

  1. @keith – there’s a slight typo in the last time sheet… You’ve mentioned “Ferrari” as the engine supplier for Carlos’ Williams.

    Thank you for the insightful article.
    :)

    1. @keithcollantine

    2. Thanks for the heads-up!

  2. I’m quite looking forward to this season, naturally this will be the closest battle for the championships in this regulation era. That alone makes me wish the 2026 regs would not come into play for a few more years. The fans deserve to see the battles which come from convergence; not least because it’s natural, unlike the artificial rules the commission is pushing.

    1. It might be the closest, but 2024 was so unusually competitive that the most likely outcome is reversion to the mean

      I.e. we will probably find fewer drivers win 2 races each this year, and we will probably find not so many teams are close at the front… simply because last year was an outlier.

  3. Congratulations to Williams! The rank and file at Williams must have gone into Testing wondering why James was so demanding, why this and that had to change, and why he employed Carlos, and then they leave Testing with the fastest lap time. This is a huge moral boost.

    1. Why would anyone question the hiring of Sainz?

      1. I’m guessing Williams have to pay a lot to employ Carlos, and that he is a demanding driver. Carlos knows what you need in a car which gives it a chance of winning races, and he would have realised what was missing or under-performing in the Williams car. So Williams have to spend time and money listening to Carlos, trying to understand his complaint, then trying to fix it so their car becomes “winning pedigree”. I have seen many good drivers go to lesser teams and lose their ambition. Williams could easily have gotten a cheaper driver, and they could have also fallen into the trap of not listening to Carlos because of apathy. Instead Williams are committing money to trying to bring their car up to the standard Carlos wants.

    2. Amazing start for Williams – I imagine Albon is very closely watching the traces to understand how Carlos beat him

      The season is looking fantastic

  4. We all know how little testing and practice times matter, but seeing sainz on top makes me really wonder if he will still have a top car after all; can’t say anything until q1 at the very least, but IF williams turned out to be a top car, it’d be nice, since sainz didn’t deserve to end up in a midfield\bottom car.

    1. More than nice, justice is the word I meant.

    2. El Pollo Loco
      2nd March 2025, 11:56

      It’d easily be the best story of the season. McLaren are miles ahead of anyone, but if we suspended disbelief and imagined Sainz won the WDC it’d likely be the most legendary F1 story ever. Alas, I think the most we can hope for is that he finishes 9th (maybe 8th due to Lawson and if the RBR is as weak as it appears), but that wouldn’t be half bad.

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