That concludes our qualifying coverage!
We will be back tomorrow for the race at 8pm UK time.
Top 10: Sainz, Leclerc, Verstappen, Perez, Hamilton, Russell, Stroll, Norris, Alonso and Bottas.
Verstappen goes third fastest!
Sainz takes provisional pole but what can Verstappen do?
Here we go then. Leclerc is already 0.2s up on his provisional pole time.
Looks like Verstappen is doing an additional warm-up lap. He's got 0.4s to make up on Leclerc.
Stroll goes seventh ahead of Alonso - 0.9s off.
The order after the first runs: Leclerc, Sainz, Hamilton, Verstappen, Perez, Russell, Alonso, Norris, Bottas and Stroll.
Leclerc goes 0.4s quicker than Verstappen at the top of the timesheets.
It's a 1m35.044s for Verstappen, 1.1s ahead of Alonso.
Stroll is the only driver in the pit lane.
Here we go then! Time for the first runs.
All cars on track except Hamilton and Stroll.
Q3 is now underway! Who will claim pole in Austin?
Zhou has his lap time deleted!
Norris is into Q3.
Out in Q2: Norris, Albon, Vettel, Gasly and Tsunoda.
Both Alfa Romeos are into Q3.
Albon goes eighth in the Williams - can he make Q3?
Time for the final runs in Q2.
All cars on track except Leclerc, Sainz and Perez.
The order with five minutes to go: Leclerc, Verstappen, Sainz, Russell, Perez, Hamilton, Alonso, Bottas, Zhou, Norris, Albon, Tsunoda, Stroll, Gasly and Vettel.
Leclerc takes to the top with a 1m35.246s, 0.048s ahead of Verstappen. Sainz, Russell, Perez and Hamilton complete the top six.
Alonso slots into seventh.
Bottas goes 0.3s clear of Albon at the top of the timesheets.
Zhou slots into second to make it an Alfa Romeo 1-2.
Tsunoda slots into second, 0.023s off Albon's Williams.
Albon sets the first time of the session - a 1m37.124s.