At the start of the fourth hour, Chip Ganassi Racing’s Cadillac V-Series R Scott Dixon had a 30s lead over the BMW of Philipp Eng, the Porsche 963s of Nick Tandy and Felipe Nasr but half an hour later, Eng went off at Turn 3.
The moment’s hesitation to avoid the incident allowed Nasr to slip ahead of his teammate, and 15m later Tandy’s day got worse when his car suddenly slowed out of Turn 5.
