The two factory Porsche North America entires were right behind in positions two and three. The #912 Porsche RSR driven by Earl Bamber, Frédéric Makowiecki and Micheal Christensen was second fastest with a best time of 1:59.633. Their team-mates Patrick Pilet, Nick Tandy and Kevin Estre were set third fastest time with 1:59.642.
The #100 BMW M6 GTLM from BMW Team RLL was fourth. The #62 Ferrari 488 GTE Risi Competizione was fifth. The #67 Ford GT Ford Chip Ganassi Racing was sixth. The #66 Ford GT Ford Chip Ganassi Racing was seventh. The #3 Corvette C7.R Corvette Racing was eigth. The #4 Corvette C7.R Corvette Racing was ninth. The #68 Ferrari 488 GTE Scuderia Corsa was tenth.
The second practice session is coming up next.