Antonio Felix Da Costa tops the final free practice session ahead of qualifying for the New York E-Prix.
As in FP1, track evolution meant times tumbled throughout the session.
Even with traffic on his flying lap, Da Costa was able to go quickest, using full power to set a lap of 1m08.646s.
Jaguar’s Mitch Evans was second quickest, 0.202s back, while championship leader Edoardo Mortara could only manage P9.
Mercedes’ Nyck de Vries set the pace early on, but multiple drovers took turns at the top of the order.
Andre Lotterer was the first driver to set a time using full power and jumped to the top of the order, only for Robin Frijns, de Vries and Stoffel Vandoorne to all then better his time in rapid succession.
Pascal Wehrlein and Mitch Evans also briefly topped the order before Da Costa put in his quickest lap.
Jake Dennis improved late to go third quickest, just 0.007s ahead of Wehrlein, with Frijns slotting into P5.
Frijns’ Envision team-mate was one of two drivers to cause yellow flags during the half hour session. Nick Cassidy came to a stop on track at turn nine at the end of the session, but was able to get going again without assistance. He ended the session P21 and was one of only two drivers not within a second of Da Costa’s time, the other being Mahindra’s Alexander Sims.
Early on, Dragon’s Sergio Sette Camara slowed to a stop on track with an apparent technical issue. He managed to get going again and crawled back to the pits. Despite the issue, Sette Camara was able to get back out again and resume practice for Dragon’s home race, but would only go 15th fastest.
At the sharp end of the field, Jean-Eric Vergne went sixth quickest, ahead of Lotterer and Vandoorne.
Mortara and Antonio Giovinazzi completed the order.