Well, it’s safe to say no Bahrain Grand Prix has been affected by torrential rain quite like the 2026 race.

For one thing, it was held several thousand miles from Bahrain itself. The ongoing war with Iran ruled such things out, so the Sepang International Circuit in Malaysia stepped in to fill its spot. One of the best examples of a late-’90s “Tilke track”—named for its designer, Herman Tilke—it’s characterized by a couple of long straights and the always-brutal tropical weather that provides one of the toughest physical challenges on the calendar. And this weekend was no exception.

Heavy rain arrived about half an hour before the start time, delaying things significantly. Although the sport has two different kinds of treaded tires for use in the rain, the full wet tire generates so much spray, and such slow lap times, that it’s essentially only useful for circulating behind the safety car. If it’s wet enough to need it, it will be too wet to see where you’re going. The intermediate tire, by contrast, has much shallower grooves and is good for racing on damp but not soaked tracks, although it quickly overheats and degrades as the track dries.

Chaos ensues

The organizers decided on two formation laps behind the safety car; circulating at lower speed would allow the drivers to get an idea of the track conditions and let their intermediate tires pump some water off the track surface, the idea went. But that didn’t take into account a bug lurking in the cars’ software.

Driving slowly behind the safety car with reduced hybrid power in some parts of the track due to the extremely wet conditions convinced several of the cars that they were being tricked into breaking a hard-coded rule meant to prevent cheating, triggering an automatic 60-second shutdown of their electric motors that caused chaos as car after car slowed for the one in front, then took varying lengths of time to reboot their systems.

The cars assembled on the grid before the first attempt at a race start.

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JADE GAO / AFP

“It was like the Lego race,” said Max Verstappen of Red Bull, referring back to the human-size Lego cars that F1 used for a driver parade at the 2025 Miami Grand Prix. “At some point, we were five-wide on the straight because we couldn’t understand what was going on. Then we did a lap and then I see eight other cars crawling still… I mean that’s not what you want, right, for the sport.”

The race organizers aborted the entire start. The bug had never come up in testing, and the FIA had to hastily write and distribute a software update to fix it. An hour after the first aborted start, the cars lined up on the grid again, ready to finally race.

“In wet conditions, there are some different software settings for the cars for safety reasons to reduce the power in certain sectors from the maximum to a lower level,” explained Nikolas Tombazis, head of single-seater racing at the FIA. “And this year, we’ve had very little wet weather running or none at all, almost. So it wasn’t maybe adequately checked.”

The software was developed by the FIA with the teams and engine makers. “So it’s common software for all cars,” Tombazis said. “And basically there was a combination of events between those software settings and the fact that some cars went incredibly slow during the formation lap and those entered a sort of a bug into the software which was stopping those cars to reaccelerate and to go to normal speeds.”

“And as a result of that, we had quite a few cars affected by that problem and which caused them to stop,” Tombazis said. “Perhaps I should also add that as soon as the formation lap problems happened, we understood the problem very soon afterward and we issued some an updated software to the teams. It took about sort of 20 minutes for the software to be issued. Some explanations teams had to update the software in the car. They had to ask a couple of questions and we had to make sure they all had done that work. So all of that took maybe about 20 minutes or so and so that was what caused that delay for the second start.”

(Indeed, the delay led Verstappen to joke that his team got their update applied faster thanks to their Oracle-supplied data connection.)

More chaos

The delay to the start was long enough that the rain had abated and the puddles of standing water had all drained, leading just over half the grid to gamble that it was dry enough to risk starting on either the soft or medium slick. Only nine drivers opted for the intermediate tire, including Verstappen (on pole), championship leader Kimi Antonelli, and his Mercedes teammate George Russell. Lewis Hamilton, starting second, was among those choosing to start on either the soft or medium slick tire; this was a mistake, as the formation lap proved the track was still much wetter than expected—too wet for slicks, certainly.

So it wasn’t a surprise to see the slick-shod cars quickly left behind as they struggled to put down power on the wet tarmac. Despite being on the intermediates, Verstappen got a terrible start and was left in third, behind both Mercedes.

“I was not surprised because my start was horrendous,” Verstappen said. “Again, dropping the clutch and not having power. The engine just completely died on me. But then you just have to settle in, try not to overreact as well, and just slot in, try to keep your position there. The race is long, a lot of things can happen, and step by step, I could close the gap.”

And he did, passing Russell on lap six and then closing up behind Antonelli quickly thereafter.

Lewis Hamilton and the other slick-shod cars got left behind at the start as track conditions proved far too wet for their tires.

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Jayce Illman/Getty Images

Meanwhile, at the back of the pack, some of the drivers who started on slicks made stops to change to the intermediates. McLaren’s Oscar Piastri was among the first who quickly began scything through the field; within a lap, he’d caught up and passed everyone who went by as he stopped. Others followed suit, though Hamilton was not among them, telling his race engineer on lap 5 that he’d gamble on the conditions coming back to suit him. It was a decision that would show the depth of experience that the seven-time world champion brings to the sport.

The race restarted on lap 13, and Verstappen pounced on Antonelli, taking the lead, with Russell following into second. Hamilton, meanwhile, was in 15th, although not for long. Within a lap, he was up to 11th. Within 10 laps of the restart, he was in 5th.

Slightly further back, another legend of the sport was also having a good day.

Fernando Alonso’s Aston Martin might have been a laughingstock at the start of the season, as it was multiple seconds slower than the cars of the frontrunners, but the Adrian Newey-designed aerodynamic update that arrived in Hungary closed some of the gap to the rest of the field. And Honda has now introduced a second power unit upgrade that has helped drivability even while at a power deficit to the others. It’s not quite as effective a package as Hamilton’s Ferrari, but Alonso began moving forward, and by lap 40, he was in 10th place, the final points-paying position.

Fernando Alonso will race in F1 for at least one more year; he entered the sport in 2001.

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Jayce Illman/Getty Images

Up front, Verstappen was building a commanding lead, and Antonelli had overtaken Russell for second, having first asked the team unsuccessfully if they’d simply tell Russell to let him by.

Extra chaos

Then Alex Albon’s Williams suffered a gearbox failure on lap 43, triggering a virtual safety car. Verstappen and Hamilton stopped for tires, followed a lap later by Antonelli, Russell, and the other Red Bull of Isack Hadjar. The broken transmission of the Williams prevented it from being easily moved, so a full safety car was declared, bunching the pack up.

The race would restart on lap 52 (of 55), but not before Russell came to a stop by the side of the track just past the pit exit on lap 50. “Another [power unit] failure, when we were on course for a pretty certain podium. It’s a tough one to take. It’s unfortunately happened too many times this season, and, yeah, this is just where we are,” Russell said after the race as he acknowledged his title chances for 2026 were over.