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Home » A young Charles Leclerc’s grit: winning KZ2 despite a 39°C fever

A young Charles Leclerc’s grit: winning KZ2 despite a 39°C fever. A look back at a defining moment in Charles Leclerc’s karting career.

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Long before Charles Leclerc became a race winner in Formula 1 and a leading figure at Ferrari, his career was already defined by moments of resilience that set him apart from his peers. One such episode dates back to 2013, when a teenage Leclerc delivered an extraordinary performance in the highly competitive KZ2 karting category despite battling a severe fever.

The setting was the South Garda Winter Cup in Lonato, a traditional early-season benchmark in international karting. Driving for the ART team, Leclerc arrived at the event far from his physical best. As the weekend progressed, his condition worsened, with his body weakened by a fever that would later be reported at around 39 degrees Celsius.

Under normal circumstances, simply completing the weekend would have been considered an achievement. Instead, Charles Leclerc turned it into a statement of intent. Against a field stacked with experienced and physically fit rivals, he continued to push through every session, refusing to let his condition dictate the outcome.

Marco Lombardi, who worked as the Monegasque’s mechanic at ART during that period, later recalled just how difficult the situation had become. He explained that it was clear from the early days of the event that Charles Leclerc was not in good shape, and by Friday his condition had deteriorated significantly. According to Lombardi, the young driver was visibly affected and physically drained, to the point of being completely exhausted by the end of the day.

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Expectations within the team were understandably modest. Even a podium finish seemed unlikely given Charles Leclerc’s health. Lombardi admitted that neither he nor the driver himself had realistically anticipated such a result, considering the severity of the fever. Yet what followed defied logic and highlighted a key trait that would later define Leclerc’s rise through single-seaters.

Rather than backing off, Leclerc found confidence as the weekend unfolded. With each session, he felt improvements, both in lap times and in his understanding of the kart. By the time the final arrived, his approach had transformed. Lombardi famously described Leclerc’s driving in the decisive race as being “with a knife between his teeth”, a vivid expression of the determination and aggression he displayed on track.

The result was a remarkable KZ2 victory, achieved not through perfect preparation or ideal conditions, but through sheer willpower and focus. For those who followed Leclerc’s junior career closely, this race became an early indicator of his mentality: a driver capable of performing at an elite level even when circumstances are far from favourable.

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Looking back from a Formula 1 perspective, this karting triumph feels especially significant. The ability to manage pain, fatigue and pressure is a crucial skill at the highest level of motorsport, and Charles Leclerc demonstrated it long before he reached the global stage. That weekend in Lonato was not just about a trophy, but about forging the competitive mindset that would later carry him to the pinnacle of the sport.

Today, as Charles Leclerc continues to shoulder the expectations that come with driving for Ferrari in Formula 1, stories like this serve as a reminder of how his character was shaped. Even as a teenager, giving up was never an option.

Feb 8, 2026David Carter
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David Carter

David Carter is a ScuderiaFans editorial byline for race-weekend analysis, strategy and Ferrari performance. His coverage examines the decisions and developments that shape each Grand Prix.

8 months ago Charles Leclerc, NewsCharles Leclerc89
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