Leclerc leads a tight Mexico Friday as Antonelli closes in on the title

Leclerc sets Friday's pace — but Mexico is far from settled

Charles Leclerc made it a clean sweep on Friday at the Mexico City Grand Prix, topping both practice sessions at the Autódromo Hermanos Rodríguez and giving Ferrari the fastest start to a weekend that could end with a new world champion. Yet the margins in the second session were wafer-thin, the track was slippery after extensive resurfacing, and Leclerc himself warned against reading too much into Friday.

Leclerc led the opening hour with a 1:18.128, clear of Mercedes driver Kimi Antonelli in second, and then lowered the benchmark in the afternoon to 1:17.827. That put him 0.103 seconds ahead of McLaren's Lando Norris, with George Russell only a further 0.003 seconds back in third. It was, by several counts, Ferrari's fifth consecutive practice-topping session — but this was no runaway.

"Overall, our performance seems quite good, but we still need to work on some of our limitations," Leclerc said. "It was also quite difficult on track today because the asphalt was very slippery."

A disrupted, rookie-filled opening hour

Friday began in unusual fashion. Ten regular drivers sat out the first session as teams handed cars to rookies, and Ferrari were the only team to run both full-time drivers from the start. That made the first timesheet hard to compare with the second.

Antonelli, who had missed Thursday's media day while recovering from a viral illness, was second in that opening hour with a 1:18.787. Mercedes reserve Frederik Vesti, standing in for Russell, impressed in third with a 1:18.861, just ahead of Hamilton on 1:18.866.

The afternoon brought all 20 regular drivers back, and a busier, messier hour. Max Verstappen and Liam Lawson collided in the stadium section, scattering debris and bringing out a brief red flag. Verstappen recovered to fifth for Red Bull, while Lawson was ninth. Hamilton's session ended early for a different reason: a power-unit problem forced him to park his Ferrari at the side of the track after 13 laps, leaving him 11th with a best time of 1:18.512.

Behind the top three, Antonelli was fourth with a 1:18.044, ahead of Verstappen on 1:18.138 and Red Bull team-mate Isack Hadjar in sixth. Russell, returning after missing the first session, said the tight order meant qualifying "can go any way" and that he hoped to "pull the lap out when it matters".

Antonelli's title arithmetic is brutally simple

The championship picture hanging over the weekend is almost as tight as Friday's timesheet. Antonelli leads Russell by 123 points and Hamilton by 124, with 125 points still available before this race. He needs only two more points to be certain of the title.

In plain terms, ninth place or better on Sunday makes the 20-year-old Italian champion no matter what anyone else does. Tenth place would also be enough unless Russell wins. If neither Russell nor Hamilton wins, Antonelli is champion even if he fails to score. Only a Russell victory combined with Antonelli finishing tenth or lower, or a Hamilton victory combined with Antonelli finishing outside the points, can keep the championship alive beyond Mexico.

If Antonelli seals it on Sunday, he would become Formula 1's youngest world champion at 20 years and 68 days, breaking Sebastian Vettel's record of 23 years and 134 days, and Italy's first champion since Alberto Ascari in 1953. He has already won nine of this season's 18 races. Mercedes also have a first mathematical chance to clinch the constructors' title, leading Ferrari by 133 points, but they would need to outscore Ferrari by 39 points on Sunday — a tall order that makes Brazil the more realistic celebration point.

Home favourite Sergio Pérez will draw much of the crowd's noise, but the title mathematics belong firmly to Antonelli, Russell and Hamilton.

Why qualifying matters more than usual in Mexico

Saturday begins with final practice before qualifying at 15:00 local time, 21:00 in the United Kingdom. No qualifying result had been decided at the time of writing, and Friday's order is not a grid. The 71-lap race follows on Sunday at 14:00 local time, 20:00 in the United Kingdom.

Mexico rewards a strong qualifying position more than most circuits. At more than 2,200 metres above sea level, the Autódromo Hermanos Rodríguez is the highest track on the calendar. The thin air cuts downforce and drag, makes cooling the power unit and brakes harder, and punishes cars that spend too long following another car. The long run to Turn 1 remains the prime overtaking chance, but a recovery drive through traffic is hard work here.

Pirelli has brought its softest compounds — the C3 hard, C4 medium and C5 soft — and pre-weekend analysis leaned towards a one-stop race because tyre severity is low. That picture is not settled. Large sections have been resurfaced, from Turn 16 to Turn 1 and from Turn 7 to Turn 16, and Friday's long runs were partly about learning how the new asphalt affects grip and graining. Williams warned before the weekend that a two-stop race on medium and soft tyres was also plausible, and that even a small change in degradation could swing the field back to one stop.

With dry, hot conditions forecast — around 27 degrees Celsius, according to Sky Sports — Sunday looks like a test of tyre management, cooling and track position. Leclerc has the early pace, Norris and Russell are within a tenth, and Antonelli needs only a careful, points-scoring Sunday. The fastest Friday car does not always win in Mexico. This weekend, the driver who can afford to be patient may be the one who leaves as champion.