The Briton, who’s substituting for the injured David Malukas within the No. 6 Arrow McLaren Chevrolet, vaulted to the highest of the charts within the opening quarter-hour and was by no means dethroned after a flying lap of 1m38.7784s on the 3.067-mile, 17-turn circuit.
Chip Ganassi Racing’s Alex Palou, who swept Friday’s two classes of working that totaled 5 hours, ended up second at 0.0524s behind.
Christian Lundgaard (Rahal Letterman Lanigan Racing), Scott McLaughlin (Staff Penske) and Pato O’Ward (Arrow McLaren) rounded out the remainder of a prime 5 that was separated by 0.3407s.
Marcus Armstrong (Chip Ganassi Racing), Romain Grosjean (Juncos Hollinger Racing) and Colton Herta (Andretti World) occupied spots sixth by way of eighth. In the meantime, the Meyer Shank Racing duo of Felix Rosenqvist and Tom Blomqvist ended up ninth and 10th, respectively.
The 2-hour take a look at, one of many 4 classes forward of Sunday’s $1 Million Problem, endured a trio of pink flags.
The primary stoppage occurred moments after Ilott jumped to the highest of the leaderboard, with repairs wanted in Flip 5 after chunks of the racetrack seemed to be developing. Following a prolonged cease that lasted practically 49 minutes, the the session resumed.
Because of the prolonged break, a further quarter-hour was added to the session.
Nonetheless, it was quick after Grosjean introduced out one other pink flag with 57 minutes remaining after being stranded off beam in Flip 15. He appeared to lock up the rear and drift off beam.
The session resumed 5 minutes later, however one other pink flag got here moments later for Kyle Kirkwood. The motive force of the No. 27 Andretti World Honda acquired out of practice after hitting a bump, which despatched him off beam after which caught air after hitting off beam curbing and backed into the Flip 8 barrier, damaging the rear of his automobile. Happily, the repairs had been fast and he was in a position to return earlier than the session ended.
The fourth and ultimate session is scheduled for 4 p.m. ET, with qualifying for tomorrow’s warmth races to comply with at 8 p.m. ET.