How Antonelli levelled up his character to be F1 2026's world champion-elect

If Kimi Antonelli becomes the youngest world champion in Formula 1 history at this weekend's United States Grand Prix, a lot of attention will go to his formidable form over the first half of the 2026 season.

As Mercedes came out of the gates with a devastating combination of the best power unit package and one of the quickest - if not the quickest - chassis, Antonelli capitalised on a golden opportunity by taking five grand prix wins in a row. George Russell's challenge, meanwhile, faltered as he was emphatically outperformed by his younger team-mate, his misery compounded by a significant portion of misfortune.

The biggest turning points came in May and June when Russell retired from the lead in Canada after a tense battle with the then 19-year-old Antonelli. He subsequently left Monaco empty handed after he was one of the drivers incorrectly penalised for pitlane speeding, leaving him out of the points after an already poor qualifying result. Russell's deficit therefore ballooned from 20 to 68 points across those two rounds and, while the Briton was initially able to regain ground as Antonelli also suffered bad luck, the youngster's imperious form before the summer break earned him the well-deserved plaudits.

As impressive as that run of six poles and six grand prix wins over the first half of 2026 was, though, what really showed Antonelli's championship calibre mettle was what happened after the break - when Mercedes no longer had the fastest car every single week. Antonelli hasn't been on pole since Belgium in July as first McLaren and then Red Bull traded turns at the front.

This was a different sort of challenge, one where he needed every ounce of his newly developed maturity to limit the damage, remain patient and not let difficult weekends spiral out of control.

He was in the right spot to capitalise on a poorly timed virtual safety car in Madrid to steal victory from Lando Norris, and his Italian Grand Prix comeback win was one for the ages, overcoming a grid penalty on home soil to scythe through the field in short order. But an equally impressive race in Azerbaijan, when Mercedes' advantage was smaller than it was in Monza, also deserves highlighting as one of the key showcases of the 20-year-old's development. Producing a mature drive on a tricky circuit where slip-ups are easy to make, Antonelli had to unlock a different setting in his brain to settle for fifth.

It's easy to overlook just how hard that is to do for such an inexperienced driver in his second F1 season, one who is poised to beat Sebastian Vettel's record of the youngest F1 world champion by three whole years.

Vettel is currently F1's youngest world champion, taking his maiden crown in 2010 at 23y134d

Photo by: Darren Heath - Getty Images

There was a brief pause when Autosport asked Antonelli in Kuala Lumpur, a few days after Baku, if he would have been able to show such restraint during his flawed rookie campaign. "No, I don't think the Kimi of 12 months ago would have been capable," Antonelli reflected. "I think it was one of those weekends where I had to accept that I couldn't drive on the limit. It was a conscious decision after the start of the race, because I didn't want to make mistakes. It was one of those races where I had to be happy with a P5, because it could have been much worse, it could have been a DNF and those points will always make the difference at the end of the season."

Then came Mercedes' long-awaited Sepang upgrade, which proved quicker on paper but much peakier and more difficult to unlock. The event officially known as the 'Bahrain Grand Prix in Malaysia' threw another curveball his way by becoming the first wet weather race of the 2026 era, offering more potential pitfalls for a sophomore.

Max Verstappen was unsurprisingly the class of the field in the significantly upgraded Red Bull, but Antonelli snared second ahead of Ferrari pair Lewis Hamilton and Charles Leclerc. Then, as Hamilton threw away an easy podium in Singapore, it was again Antonelli who was there to pick up the pieces to take third behind Verstappen and Leclerc.

That triple-header of Azerbaijan, Malaysia and Singapore may not have been as flashy as his early-season form, but it was a mature damage limitation exercise that truly showed the makings of a champion. If Antonelli had been a video game character, that's where he unlocked a new experience level.

"I know it's very close, I know it's there" Kimi Antonelli

"I think it's a good phase," Mercedes boss Toto Wolff mused after Antonelli claimed his 14th podium in 17 races at Singapore. "We had a car that was dominant for long spells at the beginning, and then he made the best out of it. But then we put a car on the track in Kuala Lumpur that wasn't easy, that was slower. [In Singapore] the car was not bad. Was it as quick as it should have been with the upgrade? It wasn't, but he managed his race, he kept his cool."

That's not to say Antonelli no longer causes Wolff and Mercedes any headaches, as he has a habit of flirting with track limits penalties even when he's managing his races. "I think he can't see [the white lines]," Wolff joked. "I have a good strategy, I'm going to put a pillow from the hotel under his butt, so he can actually see the road."

Antonelli avoided the usual cliches after the Singapore race by not batting away the inevitable questions on his impending title success. Given he boasts a 102-point lead over second-placed Russell with just six rounds remaining, he no doubt realises his maiden world championship is there for the taking.

"For sure, I know it's very close, I know it's there," he said. "But the mindset is always the same: to go out there and win and perform the best way I can. I think this weekend I haven't particularly driven that well. I felt like I could have done a better job.

"But I feel confident - a week to reset and I'm really looking forward to being back in Austin. In order to achieve what I want, I need to perform, as simple as that."