On 29 September 2022, the 2023 calendar was announced on the website and YouTube channel of the FIA World Endurance Championship, with the six races of the 2022 season and the return to Portimão, this time with a 6-hour format.

In LMP2, the Prema Racing #63 of Doriane Pin, Mirko Bortolotti and Daniil Kvyat lead with 5 minutes to go however had to pit for a splash of fuel.

This handed the LMP2 victory to the #48 Jota of David Beckmann, Will Stevens and Yifei Ye, with the Prema finishing in 3rd.

The #22 United Autosports of Filipe Alburquerque, Phil Hanson and Frederick Lubin snatched 2nd place with just minutes left.

The sole Corvette entry of Nicky Catsburg, Ben Keating and Nicolas Varrone dominated the 2nd half of the race, taking victory.

The #77 Dempsey-Proton Porsche capitalized on a late fuel stop by the #57 Kessel Racing Ferrari to take second position.

The pole-sitting #85 Iron Dames Porsche led the first half of the race, before running off the road, dislodging bodywork.

[81] The Hypercar class saw Toyota #7, in the hands of Conway, blast into the lead at the start, passing its pole-sitting sister machine.

The #8 Toyota, driven by Buemi, lost a place to James Calado (Ferrari #50), however regained this position a lap later.

Toyota management ordered the two cars to swap, however the #7 began suffering technical issues and pulled into the pits.

The #50 Ferrari finished 2nd, after holding off the #6 Porsche of Kevin Estre, Laurens Vanthoor and Andre Lotterer.

The Vanwall entry had a brake calliper explode with Jacques Villeneuve at the wheel, which led to retirement.

United Autosport #23 of Giedo van der Garde, Josh Pierson and Oliver Jarvis had their revenge after retiring from the lead at Sebring.

The GTE AM Class saw the Corvette #33 grab pole position, but couldn't hold the lead in the race.

The two cars were side-by-side in places on the final lap, but Catsburg narrowly edged Alessio Rovera to the flag, taking Corvette Racing's 2nd victory in succession.

3 Cadillac, driven by Renger van der Zande, crashed heavily at Eau Rouge after 2 hours.

The penalty, for not respecting safety car procedures, was served with 30 minutes remaining, putting them out of contention.

25 ORT by TF Aston Martin of Ahmad Al Harthy, Michael Dinan and Charlie Eastwood for the lead.

Their teammates James Calado, Antonio Giovinazzi and Alessandro Pier Guidi won overall after leading the final 55 laps.

Corvette Racing's Nicky Catsburg, Ben Keating and Nicolás Varrone in a Chevrolet Corvette C8.R came from two laps down after a second hour pit stop to replace a failed damper to win the final Le Mans Grand Touring Endurance Am (LMGTE Am) and GTE race at Le Mans, one lap ahead of ORT by TF's Aston Martin Vantage AMR shared by Ahmad Al Harthy, Michael Dinan and Charlie Eastwood.

Calado, Giovinazzi and Pier Guidi's victory moved them from fifth to second in the Hypercar Drivers' Championship, 25 points behind leaders Buemi, Hartley and Hirakawa.

Andrande, Delétraz and Kubica remained the FIA Endurance Trophy for LMP2 Drivers leaders as category winners Costa, Scherer and Śmiechowski moved from sixth to second.

Catsburg, Keating and Varrone extended their Endurance Trophy for LMGTE Am Teams lead over Al Harthy, Dinan and Eastwood.

The #7 Toyota of Kobayashi took pole in Hypercar, beating the #50 Ferrari by just 0.017 seconds, the smallest ever margin in world endurance championship history.

At the start of the race, the #93 Peugeot blasted into the lead in the early stages, whilst the #8 Toyota collided with the #51 Le Mans winning Ferrari.