Formula 1 returns to the Sepang International Circuit for the first time since 2017, with Malaysia hosting a Grand Prix weekend under intense heat that has prompted an FIA heat hazard declaration. Mercedes driver George Russell has warned that extreme tyre overheating could severely limit overtaking opportunities.
Speaking during Thursday’s media session, Russell explained that the combination of high ambient temperatures and an abrasive, newly resurfaced track will push tyre temperatures beyond the optimal window much earlier than at other circuits.
Why Russell Expects a Tough Race at Sepang
Although the circuit was resurfaced in September, teams anticipate low initial grip levels until rubber builds up. Russell highlighted that while tracks like Melbourne, Silverstone, Monza, and Canada feature “yo-yo” characteristics without severe surface overheating, Sepang presents a distinct challenge.
“I think the big difference on this circuit compared to other so-called yo-yo circuits is the tyre overheating,” Russell said. “At those other venues, there wasn’t actually that much tyre overheating from the surface. That allowed drivers to stay within that one-second window, even in Bahrain where cooler conditions helped. Here, surface overheating is going to be a huge factor. You’ll be overheating the tyres even on the out-lap of a qualifying session, which may make it more challenging to follow closely and re-attack once you’ve been overtaken, but that’s a total unknown currently.”
George Russell, Mercedes
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McLaren’s Oscar Piastri shared similar concerns regarding high degradation.
“I think [degradation] will be high. It looks like sandpaper out there, so we’ll wait and see, but I definitely think it’s going to be challenging with tyre deg,” Piastri said. “Obviously I don’t know how much racing or track running there’s been recently, and anything that has been done, the rain probably washes it off every afternoon anyway. So yeah, I think it’s going to be a pretty tough weekend from every angle.”
Implications for Sunday’s Race
Friday’s practice sessions will be crucial for teams to assess degradation levels and for drivers—including rookie Kimi Antonelli—to familiarize themselves with a circuit many have never raced on. With intense heat, high humidity, and the potential for rain, the weekend promises unpredictability. Mercedes could benefit from the long straights if they can manage their tyre temperatures effectively.