Albert Costa put his #81 DragonSpeed Ferrari 296 GT3 on pole in GTD PRO, with a 1:59.131 from the Spanish driver.
Second was Lauren Heinrich in the #77 AO Racing Porsche 911 GT3R, while third went to Neil Verhagen in the #1 Paul Miller Racing BMW M4 GT3 Evo.
However, GTD-entered Alessandro Pier Guidi was actually quicker in another Ferrari, the #21 machine from AF Corse.
He took pole in GTD for the Italian team, setting a 1:59.131 to quickest in the 20-car field.
Kenton Koch was second fastest in GTD for Korthoff Motorsports and Mercedes, while third was Jack Hawksworth for Lexus and Vasser Sullivan.
Ferrari factory driver Pier Guidi was quick all session in the #21 AF Corse Ferrari 296 GT3, battling with Hawksworth for the top spot. However, Hawksworth could only manage a time almost four tenths off the Italian, with the Briton in the #12 Vasser Sullivan Lexus RC F GT3.
In between them was Koch, just 0.005 faster than Hawksworth.
Fourth was Phil Ellis in the #57 Winward Racing Mercedes-AMG GT3, well over half a second off Pier Guidi. Fifth was Lorenzo Patrese, onboard the #47 Cetilar Racing Ferrari, but he was 0.917 off his countryman on class pole.
See here for full classification of qualifying results.
