The second 45-minute session of the weekend took place under perfect conditions at the Circuit of the Americas, with lap times instantly surmounting the best from FP1.
Ducati’s Jack Miller was the first to break Alex Rins’ benchmark from this morning with a 2m03.567s, having set the early pace with a 2m04.121s.
It wouldn’t be for another 15 minutes that Miller was finally knocked off the top spot, with morning pacesetter Rins returning of the top of the order.
The Suzuki rider produced a 2m03.030s to go fastest of all, with team-mate Joan Mir leaping to second in the closing stages to make it a 1-2 for the Japanese manufacturer.
A late flurry of fast laps led to the order being shuffled around repeatedly, with Miller going top with a 2m02.789s.
This was bettered by Pramac counterpart Zarco with a 2m02.542s, which would go unchallenged through to the chequered flag.
He would lead Miller by a considerable 0.247 seconds, with reigning world champion Fabio Quartararo leaping up…
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