the third practice session ran at night and had vautier's no. 90 cadillac set the fastest overall lap of 1 minute and 37.210 seconds. castroneves was almost two-tenths of a second behind in second, with the no. 22 extreme speed nissan of pipo derani third. harry tincknell in the no. 55 mazda placed fourth and norris' quicker united autosports car was fifth. kyle masson caused the session's first stoppage when his no. 38 performance tech oreca ran out of fuel on the track requiring recovery back to the pit lane. later, gustavo menezes' no. 99 jdc-miller car blew its right-rear tire entering turn six at high-speed. though he controlled his car throughout and avoided hitting the wall, practice was stopped for 12 minutes. ford took the first two placings in gtlm with bourdais faster than his teammate westbrook by two-tenths of a second. bortolotti's no. 11 grasser lamborghini huracán led gtd, and sam bird, in the no. 64 scuderia ferrari, was second in class.