George Russell topped the sole practice session at the Singapore Grand Prix on Friday, but will start Sunday's race from the back of the grid due to an engine-component penalty. The Mercedes driver set the fastest time ahead of Ferrari's Charles Leclerc, who was 0.198 seconds adrift, in a session held under challenging conditions caused by regional haze and elevated temperatures.
Leclerc's late-lap effort split what had initially been an all-British top three. McLaren's Lando Norris finished third, 0.273 seconds behind Russell, while Ferrari's Lewis Hamilton claimed fourth place, 0.499 seconds off the pace. The top five was completed by McLaren's Oscar Piastri, with all five drivers relying on soft-compound tyres for their quickest efforts.
Red Bull's Max Verstappen emerged as the fastest driver using medium tyres, finishing sixth overall and 0.732 seconds adrift of Russell's benchmark. The four-time world champion was 0.519 seconds quicker than Mercedes' Kimi Antonelli, who occupied seventh place, also on the medium compound. The divergence in tyre strategies made it difficult to draw firm conclusions about the true competitive order heading into the weekend.
Why is Russell starting from the back?
Russell will begin Sunday's race from the rear of the grid as punishment for exceeding the permitted number of engine components. The penalty stems from an engine failure that occurred while he was running third during the closing stages of the Bahrain Grand Prix in Malaysia. This marks a significant setback for the Mercedes driver, who had been competitive throughout the practice session.
How are Mercedes testing their upgrade package?
Russell and Antonelli are running different car specifications as part of Mercedes' evaluation strategy. Russell has reverted to a previous aerodynamic configuration, while Antonelli is using the new package that was introduced at the Malaysian event. This split approach allows the team to gather comparative data on whether the upgrade is delivering the performance gains they anticipated. Mercedes had expected to make a substantial step forward in Malaysia but found themselves struggling for pace, making this direct comparison essential for understanding the package's effectiveness.
What are the conditions like in Singapore?
The racing action is unfolding amid significant air-quality challenges caused by haze drifting from wildfires in Indonesia. These fires are largely the result of illegal slash-and-burn agricultural practices employed by farmers and companies as an inexpensive method to clear vegetation. The haze has created record pollution levels in the city state, with authorities advising residents to restrict outdoor activities.
According to local reporting, Singapore's 24-hour Pollutant Standards Index reached the unhealthy range of 101–200. The FIA has activated heat-hazard protocols for both the Sprint and Grand Prix weekend, with temperatures forecast to exceed 31°C. Organisers have implemented haze contingency measures including updates to competitors and spectators, along with access to medical assistance and N95 masks where needed. Formula 1 has stated there is
absolutely no riskto the event proceeding, though the FIA cautioned that worsening haze could lead to
some restrictionson outdoor activity.
What is the schedule for the weekend?
This is the first time Singapore is hosting a Formula 1 Sprint weekend, which compresses the traditional schedule. Drivers had only one hour of practice before the weekend's competitive action began. Sprint Qualifying is scheduled for Friday, 9 October, at 13:30 BST, with the Sprint race itself taking place on Saturday, 10 October, at 10:00 BST. Grand Prix qualifying follows on Saturday at 14:00 BST, ahead of the main race on Sunday, 11 October.
Verstappen's performance in the practice session suggested Red Bull remains competitive after claiming their first victory of the year at the previous round in Malaysia. His team-mate Isack Hadjar finished eighth fastest, also on medium tyres, while Alpine's Pierre Gasly and Racing Bulls' Liam Lawson rounded out the top 10. Aston Martin's Fernando Alonso briefly occupied a top-10 position but dropped back during the closing stages of the session to finish 14th.
Key Facts
- Russell set the fastest practice time but will start Sunday's race from the back due to an engine-penalty incurred at the Bahrain Grand Prix in Malaysia
- Leclerc finished 0.198 seconds behind Russell, with Norris third and Hamilton fourth
- Singapore is hosting its first Formula 1 Sprint weekend, leaving teams with minimal practice time before competitive action
- Air-quality warnings and heat-hazard declarations are in effect due to Indonesian wildfire haze and forecast temperatures above 31°C
- Mercedes is running split car specifications to evaluate whether their new aerodynamic upgrade is delivering expected performance gains
