Summary
Vettel to start from fourth Singapore pole; Hamilton in fifth
Red Bulls of Verstappen and Ricciardo will line up second and third
Eliminated Q2: Palmer, Perez, Kvyat, Ocon, Grosjean
Eliminated Q1: Magnussen, Massa, Stroll, Wehrlein, Ericsson
Mercedes' Hamilton leads Ferrari's Vettel by three points in title race
Postpublished at 14:06 British Summer Time 16 September 2017
Postpublished at 14:05 British Summer Time 16 September 2017
Raikkonen first on the board with a 1:44.0
Ferrari team-mate Vettel slots in sixth tenths behind.
Early days.
Image source, Getty ImagesPostpublished at 14:04 British Summer Time 16 September 2017
Listen to radio coveragepublished at 14:01 British Summer Time 16 September 2017
A reminder that we have live commentary on this session from our 5 live team.
Jack Nicholls, Tom Clarkson and Jennie Gow are on air right now. Join them.
Go! Go! Go!published at 14:00 British Summer Time 16 September 2017
The qualifying hour begins.
Kimi Raikkonen straight out in the Ferrari. He's not been on it this weekend so needs so track time in this session.
Postpublished at 13:59 British Summer Time 16 September 2017
One minute to go until qualifying.
Postpublished at 13:59 British Summer Time 16 September 2017
Allan McNish, usually of the BBC Sport parish, has tweeted this skyline from the States, where's he's keeping a close eye on a round of the World Endurance Championship.
I think Singapore just shades it...
Postpublished at 13:55 British Summer Time 16 September 2017
Intriguing qualifying session aheadpublished at 13:54 British Summer Time 16 September 2017
Andrew Benson
BBC Sport’s chief F1 writer in SingaoreNight has fallen, the lights are on, and Marina Bay is sparkling as the clock ticks down to the start of qualifying. In the paddock, in among the chat about the driver market and the wisdom of McLaren’s divorce with Honda, the big question is who will be on pole.
Unusually for this season, it looks quite open.
The Red Bulls are blisteringly fast, but can they keep their advantage when Mercedes and Ferrari turn up their engines?
Sebastian Vettel looks a strong bet in the Ferrari, but Lewis Hamilton is close enough to suggest he has a shout to. For both title contenders, the key will be to be close together, and not end up with a Red Bull or two between them. Which could easily happen.
Also, how high up can the McLaren get after being fourth and fifth in final practice? Could they stay ahead of the second Mercedes and Ferrari? That would be quite something.
Image source, Getty ImagesPredict who will top qualifying at Marina Baypublished at 13:48 British Summer Time 16 September 2017
Follow the link below to make your qualifying predictions and then head back over here to follow the action as it happens.
Predict who will top qualifying at Marina Bay
Image source, EPAPostpublished at 13:45 British Summer Time 16 September 2017
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End of twitter postPostpublished at 13:43 British Summer Time 16 September 2017
The upshot of wanging his Sauber backwards into a wall in FP3, it would seem...
On this day, 16 September: Hill wins at Monzapublished at 13:42 British Summer Time 16 September 2017
Image source, Rex FeaturesWe're going back in time 55 years today, to the 1962 Italian Grand Prix at Monza.
The race was won by Graham Hill, the Briton leading home American team-mate Richie Ginther for a BRM one-two.
The victory was Hill's third of four that season as he completed his maiden world title victory, ahead of fellow Briton Jim Clark.
Even though the Italian Grand Prix was race seven of just nine that year, Hill had to wait more than three months to secure the title at the season finale in South Africa - held on 29 December.
How does Jack prepare for the Singapore GP?published at 13:35 British Summer Time 16 September 2017
Media caption, Jack Nicholls' commentary notebook - Singapore Grand Prix
get involved Get Involved - qualifying predictionspublished at 13:28 British Summer Time 16 September 2017
#bbcf1
Title rivals' Singapore recordspublished at 13:26 British Summer Time 16 September 2017
The Marina Bay Circuit has been a good stomping ground for Lewis Hamilton and Sebastian Vettel over the years, with both sharing the poles record in Singpore with three apiece.
Vettel, however, historically has the edge come race day...
Image source, .Postpublished at 13:23 British Summer Time 16 September 2017
McLaren 'very close' to securing Alonso for next seasonpublished at 13:23 British Summer Time 16 September 2017
Andrew Benson
BBC Sport’s chief F1 writer in Singaore
Image source, Getty ImagesMcLaren are "very close" to securing star driver Fernando Alonso for next season, says boss Zak Brown.
The Spaniard is out of contract this year but McLaren hope their decision to drop Honda engines and switch to Renault will persuade him to stay.
"He's very happy with the direction of the team and the team in general," said McLaren executive director Brown.
He added Alonso, 36, would continue to earn a salary similar to his existing one, which is $40m (£29.4m) a year.
"He is one of the highest-paid drivers in the sport, and for us to retain him he will continue to be one of the highest-paid drivers in the sport," Brown said.
Tom Clarkson's predictions for qualifyingpublished at 13:19 British Summer Time 16 September 2017
A word of warning for Red Bullpublished at 13:12 British Summer Time 16 September 2017
Andrew Benson
BBC Sport’s chief F1 writer in SingaoreRed Bull have continued their strong pace from Friday, but the closeness of Sebastian Vettel and Lewis Hamilton suggests that when the top two teams turn up their engines in qualifying they may sneak ahead.
Renault does not have the same extra power boost for the final stages of qualifying and so always tend to lose some ground.
Hamilton's pace will be encouraging for Mercedes, who came to Singapore expecting to struggle compared to Ferrari on a track that does not suit the characteristics of their car.
Daneil Ricciardo had been quickest in both sessions on Friday but Max Verstappen was edging him throughout FP3 and the Australian brushed a wall at Turn Nine on his final attempt at a fast lap and returned to the pits to check for damage, ending up sixth.
But he can be expected to be in the mix at the front come qualifying.
Image source, Getty Images