The 2012 Singapore Grand Prix (formally known as the 2012 Formula 1 SingTel Singapore Grand Prix) is a Formula One motor race that took place at the Marina Bay Street Circuit in Marina Bay, Singapore on 23 September 2012 as the fourteenth round of the 2012 season. The race was the thirteenth time that a Singapore Grand Prix has been held, and the fifth time it was a round of the Formula One World Championship.

Lewis Hamilton started the race from pole. Sebastian Vettel won the race, his second of the season, after Hamilton's gearbox failed early in the race.

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• * Di Resta originally qualified fourth, but was given a five-place grid penalty for an unscheduled gearbox change. Gearbox penalty for Di Resta at Force India
• Friday Practice 1 – Schumacher starts well at Monza
• Friday Practice 2 – Hamilton ahead as McLaren edge Ferrari
• Saturday Practice – Hamilton by a thousandth
• Qualifying – McLaren lock out front row with Hamilton pole
• Race – Hamilton supreme at Monza, as Perez shines again

• Race reduced from 61 laps to 59 laps due to the two-hour time limit.
• * Both Mercedes cars failed to record a flying lap time during Q3. Thus, they were ranked in car number order.
• † Mark Webber (10th, + 47.175) was given a 20-second time penalty post-race for "gaining an advantage by going off the track" when passing Kamui Kobayashi. Webber loses point after post-race penalty
• Friday Practice 1 – Vettel off to a flyer in Singapore
• Friday Practice 2 – Vettel dominates day one in Singapore
• Saturday Practice – Vettel makes it three from three
• Qualifying – Hamilton blasts to Singapore pole
• Race – Resurgent Vettel wins action-packed Singapore round

Formula One, abbreviated to F1, is the highest class of open-wheeled auto racing defined by the Fédération Internationale de l'Automobile (FIA), motorsport's world governing body. The "formula" in the name refers to a set of rules to which all participants and vehicles must conform. The F1 World Championship season consists of a series of races, known as Grands Prix, usually held on purpose-built circuits, and in a few cases on closed city streets. The results of each race are combined to determine two annual championships, one for drivers and one for constructors.

A red flag is shown when there has been an accident or the track conditions are poor enough to warrant the race being stopped. The flags are displayed by the marshals at various points around the circuit. Following a red flag being shown, the exit of the pit lane is closed and cars must proceed to the starting grid slowly, without overtaking. From 2005, a ten-minute warning is given before the race is resumed behind the safety car, which leads the field for a lap before it returns to the pit lane. Previously, the race was restarted in race order from the penultimate lap before the red flag was shown. If a race is unable to be resumed, "the results will be taken at the end of the penultimate lap before the lap during which the signal to suspend the race was given." If 75 per cent of the race distance has not been completed and the race cannot be resumed, half points are awarded. No points are awarded if the race cannot be restarted and less than two laps have been completed.

Since the first World Championship Grand Prix in 1950, red flags have been shown in sixty-three races. Twenty-six were restarted on the first lap. Thirteen races, nine stopped because of rain and four due to accidents involving drivers, were not restarted. Three races were stopped due to incidents that resulted in fatalities: The 1975 Spanish Grand Prix was stopped on lap twenty-nine and not restarted after Rolf Stommelen's car crashed into a spectator area, killing five people. The 1982 Canadian Grand Prix was halted on the first lap after Riccardo Paletti was killed when his car collided with the back of Didier Pironi's Ferrari. The 1994 San Marino Grand Prix was red-flagged on lap five following the fatal accident of Ayrton Senna, in which his car crashed into a wall at the Tamburello curve.

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• * Button originally qualified third, but was given a five-place grid penalty for an unscheduled gearbox change. Button to take Suzuka gearbox penalty
• † Nico Hülkenberg (10th, no time set) was given a five-place grid penalty for an unscheduled gearbox change. Nico Hulkenberg gets gearbox penalty
• Friday Practice 1 – McLaren set the Suzuka standard
• Friday Practice 2 – Webber moves ahead in Japan
• Saturday Practice – Vettel heads Red Bull one-two
• Qualifying – Vettel claims fourth successive Suzuka pole
• Race – Vettel wins at Suzuka to slash Alonso's title advantage

• Friday Practice 1 – Hamilton leads Alonso at Yeongam
• Friday Practice 2 – Red Bull take control in Korea
• Saturday Practice – Vettel stays ahead at Yeongam
• Qualifying – Webber bests Vettel to take Yeongam pole
• Race – Vettel storms into title lead with Korean win

• * Rosberg did not complete a flying lap during the third part of qualifying.
• Friday Practice 1 – Vettel takes charge for Red Bull in India
• Friday Practice 2 – Red Bull dominate in New Delhi
• Saturday Practice – Vettel top as battle intensifies
• Qualifying – Vettel edges Webber for Red Bull lockout
• Race – Vettel wins in New Delhi as Alonso limits the damage

• * Sebastian Vettel (1:41.073) was disqualified from the qualifying session, and sent to the back of the grid after stewards deemed he did not have enough fuel in his car, following the session; Vettel had stopped on track following his qualifying lap. Vettel sent to back of the grid for fuel infringement
• Friday Practice 1 – Hamilton heads McLaren one-two in Abu Dhabi
• Friday Practice 2 – Vettel edges Hamilton at Yas Marina
• Saturday Practice – McLaren back on top as Vettel hits trouble
• Qualifying – Hamilton dwarves the rest to clinch Abu Dhabi pole
• Race – Raikkonen wins for Lotus in Abu Dhabi thriller

The 2012 Formula One season was the 63rd season of the Formula One World Championship, a motor racing championship for Formula One cars recognised by the Fédération Internationale de l'Automobile (FIA) — the governing body of motorsport — as the highest class of competition for open-wheel racing cars. The season was contested over twenty rounds, which started in Australia on 18 March and ended in Brazil on 25 November. The 2012 season saw the return of the United States Grand Prix, which was held at the Circuit of the Americas, a purpose-built circuit in Austin, Texas. After being cancelled in 2011 due to civil protests, the Bahrain Grand Prix also returned to the calendar.

The early season was tumultuous, with seven different drivers winning the first seven races of the championship; a record for the series. It was not until the European Grand Prix in June that a driver, Ferrari's Fernando Alonso, won his second race of the year, and with it, emerged as a championship contender. Alonso maintained his hold on the championship lead for the next seven races, taking his third win in Germany and finishing on the podium in the United Kingdom, Italy and Singapore. However, costly first-lap retirements in Belgium and Japan allowed his rivals to catch up, and defending World Champion Sebastian Vettel — like Alonso, a two-time winner — took the lead in the sixteenth race of the season. Vettel, too, encountered difficulties throughout the season; contact with a backmarker left him to finish outside the points in Malaysia, while alternator failures at the European and Italian Grands Prix cost him valuable points and exclusion from qualifying in Abu Dhabi led him to start from the pit lane. Vettel entered the final race of the season with a thirteen-point lead over Alonso. Alonso needed a podium finish to stand any chance of becoming World Drivers' Champion, but in a race of attrition that finished under the safety car, Vettel finished in sixth place, scoring enough points to win his third consecutive championship, becoming the third driver to do so. In the World Constructors' Championship, Red Bull Racing secured their third consecutive title when Sebastian Vettel finished second at the United States Grand Prix.

In addition to seeing seven drivers win the first seven races, the 2012 season broke several records. The calendar for the season included twenty races, breaking the previous record of nineteen, which was first set in 2005. Six current or former World Drivers' Champions — Sebastian Vettel, Fernando Alonso, Jenson Button, Lewis Hamilton, Kimi Räikkönen, and Michael Schumacher — started the season, breaking the record of five established in 1970.

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• * Felipe Massa (7th, 1:36.937; 6th after Grosjean penalty) was given a five-place grid penalty for an unscheduled gearbox change. Late Massa grid penalty promotes Alonso
• † Grosjean was given a five-place grid penalty for an unscheduled gearbox change. Gearbox penalty for Grosjean
• Friday Practice 1 – Vettel fastest on US return
• Friday Practice 2 – Vettel the clear leader in Austin
• Saturday Practice – Vettel still riding high for Red Bull in Austin
• Qualifying – Vettel pushed all the way for Austin pole
• Race – Hamilton king of America as title fight rages on
• Red Bull: Third constructors' title a "proud moment"

• * Race finished under neutralised safety car conditions.
• † Pastor Maldonado (6th; 1:13.174) was given a ten-place grid penalty for receiving his third reprimand of the season. This was due to missing the weigh-bridge during qualifying. [1]
• Friday Practice 1 – Hamilton sets Sao Paulo standard
• Friday Practice 2 – Hamilton stays ahead for McLaren in Brazil
• Saturday Practice – Button pips Vettel at Interlagos
• Qualifying – Hamilton on pole for title decider in Brazil
• Race – Button first, Alonso second, Vettel champion
• History in the making – Vettel's route to the 2012 title