Both Corvette Z06s did poorly, ended at the back of the field

In LMGT3, it was heartbreak for Proton Competition and Vista AF Corse and jubilation for United Autosports. The No. 95 McLaren GT3 Evo of Marino Sato, Sean Gelael and Darren Leung (above) crossed the line second behind the No. 54 Ferrari before the team received a five-second time penalty post-race for an incident at Turn 11 with the No. 77 Proton Ford Mustang.

The No. 77 crew looked on course to score the Blue Oval its first WEC win after the team locked out the front row on Saturday, until tire strategy came into play in the final hour.

Cars that took Goodyear hard tires at their final stop suddenly found pace on the drying track. Davide Rigon, on slicks in the No. 54 Ferrari, made short work of Alessio Rovera in the No. 21 sister Ferrari, Richard Lietz in the No. 92 points-leading Manthey Porsche and Ben Barker in the No. 77 Ford, making what he thought was the winning move up the inside at Turn 12.

Sato, meanwhile, found himself on the right tire at the right time for United Autosports, rising to second in the No. 95 McLaren before being promoted to first post-race. It would result in McLaren's first-ever FIA WEC class victory.
The No. 46 WRT BMW came from seemingly nowhere and ended up second following a heroic run from Kelvin van der Linde.

Meanwhile, the No. 54 dropped to third with its time penalty, and the No. 77 Ford dropped to seventh.
The No. 92 Porsche fell to eighth, and the No. 21 Ferrari finished outside the points in 12th.
AF Corse Penalty Gifts LMGT3 Victory to United Autosports McLaren
While few Hypercar runners gambled on slick tires on a drying track, the battle for LMGT3 honors was entirely decided by which crews opted for slicks, a gamble that propelled the No. 54 AF Corse Ferrari 296 GT3 to an on-the-road victory.

However, a five-second penalty incurred by Davide Rigon for contact with Proton Competition Ford driver Ben Barker meant that the class win ultimately went to Marino Sato, Darren Leung and Sean Gelael in the No. 95 United Autosports McLaren 720S GT3 Evo.
It marked both the team and manufacturer’s first win in LMGT3 competition.

The No. 77 Proton Ford Mustang GT3 had looked in command in the closing stages, but a slightly earlier final stop to allow Ben Barker to take over from Ben Tuck effectively sealed the team’s fate, as the car stuck with wet tires.
By contrast, the majority of the field opted for dry tires for the final stint, with Rigon at the forefront of that group aboard the No. 54 Ferrari.

Having run fifth with 30 minutes to go, Rigon sliced his way through the field, passing the wet tire-shod No. 92 Manthey Porsche 911 GT3 R of Richard Lietz and then Barker in quick succession to lead, albeit only after making contact with the latter that would ultimately cost the Italian and his co-drivers Thomas Flohr and Francesco Castellacci the win.

The five-second penalty not only dropped the No. 54 Ferrari behind the No. 95 McLaren, which likewise took slicks, but also the No. 46 Team WRT BMW M4 GT3 EVO driven by Kelvin van der Linde, Valentino Rossi and Ahmad Al Harthy.
Barker slipped all the way to sixth in the No. 77 Mustang GT3, while Richard Lietz had to be content with seventh place in the championship-leading No. 92 Porsche he shares with Riccardo Pera and Ryan Hardwick.

Both cars were promoted one position by a converted drive-through penalty assessed to the No. 31 BMW that had finished fourth on the road.
It means Lietz, Pera and Hardwick lead the LMGT3 standings by 16 points, with the No. 21 AF Corse Ferrari scoring a single point for tenth and the No. 33 TF Sport Chevrolet Corvette Z06 GT3.R failing to score.