The FIA World Endurance Championship teams rolled out onto Circuit of The Americas for the first time in four and a half years with opening practice for Sunday’s Lone Star Le Mans. Matt Campbell ended up with the fastest lap of the session with the No. 5 Porsche Penske Motorsport 963.

Conditions were sunny and very warm for the first 90-minute session of the weekend, which was interrupted by a red flag for a stalled car, and then a full course yellow to retrieve the stranded No. 60 Iron Lynx Lamborghini Huracán GT3 EVO2 of Claudio Schiavoni down at Turn 19. Race control added five more minutes of track time to the session near the end.