Can Anyone Beat Antonelli in Belgium?

Championship leader Andrea Kimi Antonelli topped the standings after Friday's practice sessions in Belgium. With a lap of 1:45.944, he was 0.190 seconds ahead of McLaren's Lando Norris, while Red Bull driver Max Verstappen finished third, 0.472 seconds adrift. The Italian also set the benchmark during high-fuel race simulations.

After adjusting the data from the long runs in the second free practice, accounting for different tire types and stint durations, Antonelli was on average 0.21 seconds per lap faster than his closest rival, Charles Leclerc of Ferrari. However, the Monegasque driver only managed one representative long-run lap before the session was red-flagged due to an incident involving Pierre Gasly.

For this reason, a comparison with Antonelli's Mercedes teammate, George Russell, and both Red Bull drivers, who managed several laps in their simulations before the interruption, is more meaningful. Verstappen was on average 0.29 seconds per lap slower than Antonelli, while Russell lagged by almost half a second.

Nevertheless, Red Bull could still prove to be Mercedes' closest competitor at Spa. Verstappen topped the first practice session and capitalized on his top-speed advantage on the straights in sectors one and three. Beyond the struggles in the slow middle sector, however, the Red Bull car also revealed another weakness: tire wear.

During his eight-lap stint, Verstappen registered an average tire degradation of 0.227 seconds per lap. Over the same distance, Antonelli achieved only 0.078 seconds per lap. While Red Bull initially matched Mercedes' pace, the team gradually lost speed as the stint progressed.

Despite this, Red Bull's position as the second-fastest team is far from guaranteed. Lando Norris was about three-tenths quicker than Verstappen in the second practice, and Ferrari should not be written off regarding race pace. This is primarily supported by the long run completed by Lewis Hamilton during the first practice session.

Unlike the long runs in the second practice, the race simulations in the first were not interrupted by a red flag. As a result, although the second practice is usually more indicative, the earlier data warrants a closer look.

Lewis Hamilton recorded the fastest average pace over a long run during the first session, being 0.29 seconds per lap quicker than Antonelli. However, these figures should be interpreted with caution due to varying fuel loads and testing programs.

Some teams deliberately start their stints at a higher pace to maximize tire wear analysis and make race predictions. Others adopt a more conservative approach, preserving tires from the outset, similar to the strategy expected during Sunday's race.

The wear data tells an interesting story. Either Antonelli deliberately managed his tires throughout the stint, or Mercedes has found a significant advantage in tire management over longer runs. In either case, the Silver Arrows and Antonelli appear to be clear favorites for the remainder of the weekend, both in a qualifying lap and in race pace.

Ferrari and Aston Martin are the only teams that have not brought new parts to the Belgian Grand Prix. While Ferrari is pausing development after already introducing 30 upgrades this season, Aston Martin is focusing entirely on a major upgrade package set to debut in Hungary next week.

According to FIA documentation, the Silverstone-based team has introduced only six upgrades this season and is consequently falling behind in the standings. In Belgium, Aston Martin might genuinely struggle just to qualify for the race.

Fernando Alonso's fastest lap in the second practice was only one-tenth of a second better than Antonelli's average pace on a long run with a fully fueled Mercedes. Converted to an equivalent fuel difference, Aston Martin's pace deficit is estimated at around 100 kg of fuel.

With a deficit of 5.187 seconds to the fastest lap in the second practice, Aston Martin was only 2.229 seconds away from the projected 107% qualifying threshold. A gap of over seven seconds in qualifying would put the team at real risk of not meeting the 107% rule. The planned upgrade for Hungary is more than imperative.

In the midfield, the pecking order appears largely unchanged from recent races. Racing Bulls, Alpine, and Audi currently form the leading group, followed by a second tier consisting of Haas and Williams. Cadillac and Aston Martin currently occupy the bottom of the standings.

Alpine completed the fastest qualifying simulation among the midfield teams during the second practice and impressed particularly in the fast first and third sectors. In the long runs during the first free practice, the Audi team recorded the best average pace among the midfield teams (+1.66), ahead of Racing Bulls (+1.72) and Alpine (+2.06). No significant differences in tire wear were observed between the three teams.

Speaking of tires, they are expected to play a crucial role again in Belgium. According to Pirelli Motorsport Director, Dario Marrafuski, the Spa circuit ranks "among the top three" on the calendar in terms of tire stress. However, there is currently little indication that the race will require two pit stops.

Last year, teams were able to complete over 30 laps on the medium C3 compound in some cases. According to Pirelli's chief engineer, Simone Berra, it appears the situation hasn't changed much: "A one-stop race on Sunday seems very likely."