The calendar was released on 1 July 2023 at theSRO's annual24 Hours of Spa press conference, featuring five rounds.[1] Several adjustments were announced, includingCircuit de Barcelona-Catalunya joining the sprint schedule after being shuffled out of the endurance schedule, and the addition ofCircuit de Nevers Magny-Cours after a year away.Circuit Ricardo Tormo andCircuit Zandvoort will not return to the sprint schedule, after three and five years in the series respectively.
Dinamic GT was scheduled to run a pair ofFord Mustang GT3s, but parted ways with the American brand prior to the start of the season.[43]Christopher Mies andFrédéric Vervisch were set to share a Pro-class entry, withBen Barker and Philipp Sager in a Bronze Cup car.[44][45] A Pro-classProton Competition entry later appeared on the season entry list, in what looked to be a replacement programme akin to the one set up by the team in theEndurance Cup.[4] However, after sitting out the opening round, aFord Performance spokesperson confirmed the programme would not go ahead.[46]
^abRăzvan Umbrărescu withdrew from round 5 after the Friday practice sessions due to health reasons. Jakes was allowed to compete solo for the remainder of the event.[7]
^James Kell withdrew from round 1 shortly before the qualifying sessions due to health reasons. Påverud was allowed to compete solo for the remainder of the event.[14]
^abMukovoz is Russian, but he competes as a neutral competitor as Russian national emblems were banned by theFIA following theRussian invasion of Ukraine. Gvazava, also a Russian, competes under a Kyrgyz licence for the same reason.
^abCar No. 991 entered as Century Motorsport at rounds 2–4, and as Paradine Competition at round 5.
^abcdefghiTeam WRT won an appeal regarding safety car procedure in Barcelona Race 1, because the pit window was not postponed under the safety car. The classification of race 1 was cancelled, with no points awarded.[49]