I find it hard to believe how the driver who had 14 podiums and seven wins in the first 16 races, is now having a real struggle with achieving even fifth place. Is it a case of Oscar Piastri feeling the pressure and leading to a few really costly mistakes, or do the tracks really differ that much throughout the season? – Allegra

Piastri’s slump in form since he won the Dutch Grand Prix to take his seventh victory of the season in 15 races is indeed remarkable.

I actually asked him on media day in Las Vegas whether he knew what had been going on, and this was his answer.

“Austin and Mexico were quite different to the other races that have not gone so successfully,” he said.

“There, there was a clear pace deficit and something pretty fundamental that just wasn’t working.

“The other races have just been a combination of different things going wrong.

“Obviously, Baku (where he crashed three times and jumped the start) was what it was. Singapore from a performance standpoint actually was pretty solid, just the race obviously didn’t pan out exactly how I wanted.

“And even Brazil, the pace was good at points. The sprint crash didn’t have a great impact on the rest of the weekend. There were some things resulting from that that were suboptimal for the rest of the weekend.

“So from a pace and performance point of view, Brazil was actually quite good, it was just that there were a lot of things that happened that meant the results weren’t on the table.

“There was a couple of races where, yes, I needed to do some head scratching and work out what was going on, but the other races that have been tough have just been what some might say is a difficult world of motorsport.”

That’s a pretty good summary of what’s been going on.

But there’s another factor to bear in mind, in that Piastri is not driving in isolation. He is also being compared to his rivals, and in particular his team-mate.

There is absolutely no question that, after a shaky start to the season, Lando Norris has moved up a gear or two since the summer break.

Norris himself says the upward trend started before that – and it seems it began with the introduction of a tweak to the front suspension geometry in Canada aimed at enabling him to better feel the front of the car at the limit.

Up until the Dutch Grand Prix, the head-to-head qualifying stats between the McLaren drivers were weighted in Piastri’s favour – but in terms of pure pace the margin was only 0.099 seconds.

Since Monza, Piastri has out-qualified Norris only once, in Singapore, and the pace gap is 0.226secs in Norris’ favour.

This has come about through hard, focused work from Norris, as he explained in Las Vegas. It’s now up to Piastri to respond.