Long-run data hints at Mercedes resurgence in final Bahrain test

Long-run data from the opening day of the final 2026 pre-season test in Bahrain suggests Mercedes may have taken a significant step forward, with its W17 appearing strong and consistent in the hands of both Kimi Antonelli and George Russell. While Red Bull's program was limited without Max Verstappen and Ferrari faced issues, Mercedes' extensive stint running provided the most compelling evidence of potential pace, particularly in the representative afternoon conditions.

Why it matters:

After a period of playing catch-up, a return to form for Mercedes would dramatically reshape the competitive hierarchy at the start of the new season. Strong long-run performance is a key indicator of race pace and tire management, making these early signs crucial for understanding which teams might challenge from the opening round.

The details:

• Mercedes' Strength: George Russell set the benchmark in the afternoon, with a nine-lap run averaging 1m36.527s on the C3 tire (the medium compound). His consistency was notable, with laps tightly clustered between the 1m36.0s and 1m36.7s range.
• Red Bull's Limited Sample: Rookie Isack Hadjar showed promising pace for Red Bull in shorter five-lap runs, particularly on the C3 tire. However, the team's program was less extensive, and the absence of Max Verstappen leaves their true potential unclear.
• Ferrari's Mixed Day: Charles Leclerc's early five-lap run for Ferrari was competitive, but the team encountered problems later, limiting their data collection. Lewis Hamilton's longer 15-lap run on the prototype tire was significantly slower, offering little comparison.
• Other Notables: McLaren's Oscar Piastri logged a solid run, while Alpine and Audi gathered data with their rookie drivers. Williams and Aston Martin continued to struggle with either pace or reliability, completing no meaningful fast long runs.
• Data Caveats: Analysis is complicated by track evolution, varying tire compounds, and some runs being flattered by an initial fast lap. Mercedes' runs, however, were noted for their genuine consistency.

What's next:

The true picture will become clearer over the final two days of testing, as teams shift focus to more formal race simulations. All eyes will be on whether Mercedes can maintain this strong long-run form, if Red Bull responds with Verstappen back in the car, and if Ferrari can overcome its reliability gremlins. The data from Thursday and Friday will provide the final clues before the competitive order is truly revealed at the season-opening Grand Prix.