The title race so far...published at 18:01 BST 21 October 2018
Cast your minds back to the British Grand Prix in July. Sebastian Vettel denied Lewis Hamilton a home win and ended the day with an eight-point lead. That seems a long, long time ago.

Hamilton must wait for title as Raikkonen wins for first time in 5 years
Alonso, Ricciardo, Grosjean, Leclerc out
Michael Emons
Cast your minds back to the British Grand Prix in July. Sebastian Vettel denied Lewis Hamilton a home win and ended the day with an eight-point lead. That seems a long, long time ago.
Here are the thoughts of Romain Grosjean (eighth), Fernando Alonso (13th) and Sergey Sirotkin (14th), who both move one place up the grid thanks to Max Verstappen's gearbox penalty.
And the thoughts of Valtteri Bottas (third), Nico Hulkenberg (seventh) and Kevin Magnussen (12th).
Time for some social media reaction to yesterday's qualifying. Here are the thoughts of Lewis Hamilton (starts first), Esteban Ocon (sixth) and Max Verstappen (18th).
Two very simple questions for you today...
What do you want to happen today? What do you think will happen?
Tweet us using #bbcf1 to make your predictions.
Barring any late changes, this is how they will start...
And these were the times in qualifying. Sebastian Vettel moves down from second to fifth for failing to slow down quick enough under red flag conditions in first practice, the two Toro Rossos move to the back row for engine penalties and Max Verstappen drops to 18th after a five-place penalty for a gearbox change.
Number 81 overall as well...
Fantastic effort.
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Andrew Benson
BBC Sport’s chief F1 writer in Austin
Lewis Hamilton will start the US Grand Prix on pole position as he seeks to take the final step towards wrapping up a fifth world title.
The Mercedes driver beat title rival Sebastian Vettel by 0.061 seconds but the German will be demoted to fifth on the grid because of a penalty. Hamilton will clinch the title if he wins the race and Vettel finishes lower than second.
Potentially crucially for Vettel, his team-mate Kimi Raikkonen starts second, ahead of the second Mercedes of Valtteri Bottas. Vettel will also be behind the Red Bull of Daniel Ricciardo, who qualified fifth but will be promoted to fourth by the German's penalty.
Hello and welcome along to what could be a great, great day for Lewis Hamilton.
I'm Michael Emons and have the pleasure of talking you through the United States Grand Prix, where Hamilton could become the world champion for a fifth time.
In 2008, 2014, 2015 and 2017, Lewis Hamilton won the Formula 1 Drivers' Championship...
...by the end of the day he could be on top of the world again.