F1MATHS: What does the telemetry reveal about the 0.011-second gap between Hamilton and Antonelli?

Lewis Hamilton and Andrea Kimi Antonelli were separated by just 0.011s in Sprint Qualifying at Silverstone. F1Technical's senior writer Balazs Szabo delivers a telemetry comparison that reveals two very different approaches to extracting lap time around the track built on an airfield.

One of the clearest patterns is Antonelli’s advantage on the straights. The Mercedes driver consistently gained time down the main straight - Hamilton Straight -, builing a bit of a margin at the start of the lap.

The Italian then gained further time between Turn 5 and 6 (Wellington Straight), again down the Hangar Straight (Turn 14 to 15), suggesting strong energy deployment and efficient low-drag setup, and also indicating that he concentrated the electrical energy on the longest straights of the Silverstone track.

Hamilton, however, was rarely ahead in pure straight-line phases. Instead, he rebuilt his advantage where the lap mattered most: braking zones and high-speed corner transitions.

The decisive difference came in Sector 3, especially from Turn 15 onwards. Hamilton gained crucial time through the technical final section, particularly in the braking zone and the turn-in phase at Turn 15, then through the transition through Turn 16–17, and through the fast, flowing Club corner (Turn 16–18 complex).

Here, Hamilton’s Ferrari looked more stable and better balanced on entry and mid-corner, allowing him to carry higher minimum speed. His ability to rotate the car cleanly in quick succession proved to be a key differentiator.

Following qualifying, Mercedes admitted that this is an area which they intend to fine-tune after the sprint race when the parc fermé restrictions come to an end. The Brackley-based team indicated that they spent the first two sessions of sprint qualifying making setup adjustments in an attempt to calm an overly aggressive front end, but the changes never fully solved the problem.

"Over the course of the sessions, we've been making changes to put more stability into the car but even by the SQ3 of Sprint Qualifying, it still felt that the front was still too strong, which is not what you need when it's so gusty," noted Mercedes trackside engineering director Andrew Shovlin.

But, wait, could Hamilton have gone even quicker? The seven-time world champion dominated the last segment both in the sole practice session and in qualifying.

However, Hamilton suffered a small rear instability at the exit of Turn 17. The wobble cost him crucial momentum onto the final corner, and Antonelli could make up some time on the final metres, but it was still Hamilton who set the better sector time in the final part of the track.

Another subtle but important factor is energy management. Hamilton appears to have deployed more electrical energy in the middle part of the lap—particularly around Copse (Turn 9)—which helped him stabilise his performance through the following high-speed sections.

Antonelli, by contrast, seemed to prioritise straight-line efficiency, possibly saving deployment for longer acceleration zones. This strategy helped him win back time on the straights but left him slightly exposed in complex corner sequences.

Curiously, Mercedes was not content with the straight-line performance of their W17 despite the fact that the telemetry revealed that Antonelli was quicker down the straights.

"On top of that, we have a speed difference that we need to understand that was costing us a decent amount of time on the straights," noted Shovlin.