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| - Colors = id:canvas value:rgb(0.937,0.937,0.937) id:linemark value:gray(0.8) id:linemark2 value:gray(0.9) BackgroundColors = canvas:canvas PlotData = mark:(line,linemark) from:start till:3 color:claret shift:(20,-5) text:Clay Regazzoni (Laps 1–3) from:3 till:7 color:purple shift:(20,-5) text:Ronnie Peterson (Laps 4–7) from:7 till:8 color:blue shift:(20,-6) text:Jackie Stewart (Lap 8) from:8 till:9 color:claret shift:(20,-4) text:Clay Regazzoni (Lap 9) from:9 till:14 color:purple shift:(20,-5) text:Ronnie Peterson (Laps 10–14) from:14 till:16 color:darkblue shift:(20,-5) text:François Cevert (Laps 15–16) from:16 till:22 color:purple shift:(20,-5) text:Ronnie Peterson (Laps 17–22) from:22 till:23 color:darkblue shift:(20,-7) text:François Cevert (Lap 23) from:23 till:24 c
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| abstract
| - Colors = id:canvas value:rgb(0.937,0.937,0.937) id:linemark value:gray(0.8) id:linemark2 value:gray(0.9) BackgroundColors = canvas:canvas PlotData = mark:(line,linemark) from:start till:3 color:claret shift:(20,-5) text:Clay Regazzoni (Laps 1–3) from:3 till:7 color:purple shift:(20,-5) text:Ronnie Peterson (Laps 4–7) from:7 till:8 color:blue shift:(20,-6) text:Jackie Stewart (Lap 8) from:8 till:9 color:claret shift:(20,-4) text:Clay Regazzoni (Lap 9) from:9 till:14 color:purple shift:(20,-5) text:Ronnie Peterson (Laps 10–14) from:14 till:16 color:darkblue shift:(20,-5) text:François Cevert (Laps 15–16) from:16 till:22 color:purple shift:(20,-5) text:Ronnie Peterson (Laps 17–22) from:22 till:23 color:darkblue shift:(20,-7) text:François Cevert (Lap 23) from:23 till:24 color:purple shift:(20,-6) text:Ronnie Peterson (Lap 24) from:24 till:25 color:green shift:(20,-5) text:Mike Hailwood (Lap 25) from:25 till:26 color:purple shift:(20,-4) text:Ronnie Peterson (Lap 26) from:26 till:27 color:green shift:(20,-3) text:Mike Hailwood (Lap 27) from:27 till:30 color:black shift:(20,-5) text:Jo Siffert (Laps 28–30) from:30 till:32 color:darkblue shift:(20,-5) text:François Cevert (Laps 31–32) from:32 till:33 color:purple shift:(20,-6) text:Ronnie Peterson (Lap 33) from:33 till:34 color:darkblue shift:(20,-5) text:François Cevert (Lap 34) from:34 till:35 color:green shift:(20,-4) text:Mike Hailwood (Lap 35) from:35 till:36 color:darkblue shift:(20,-3) text:François Cevert (Lap 36) from:36 till:41 color:skyblue shift:(20,-5) text:Chris Amon (Laps 37–41) from:41 till:42 color:green shift:(20,-5) text:Mike Hailwood (Lap 42) from:42 till:46 color:skyblue shift:(20,-5) text:Chris Amon (Laps 43–46) from:46 till:50 color:purple shift:(20,-5) text:Ronnie Peterson (Laps 47–50) from:50 till:51 color:green shift:(20,-5) text:Mike Hailwood (Lap 51) from:51 till:53 color:yelloworange shift:(20,-5) text:Peter Gethin (Laps 52–53) from:53 till:54 color:purple shift:(20,-6) text:Ronnie Peterson (Lap 54) from:54 till:end color:yelloworange shift:(20,-4) text:Peter Gethin (Lap 55) The 1971 Italian Grand Prix (formally the XLII Gran Premio d'Italia) was a Formula One World Championship race that took place on 9 September 1971 at the Autodromo Nazionale Monza and served as the ninth round (out of eleven) of the 1971 Formula One Season. It was the 42nd Italian Grand Prix, and the 38th to be held at the Monza circuit. With the Monza circuit without chicanes (for what turned out to the final time), the race was an incredibly fast slipstreaming battle, and at 242.615 km/h (150.754 mph), was the fastest race of all time for 32 years until broken by the 2003 race at the circuit. The race also featured the closest finish in F1 history (allowing for improvements in timing technology). Chris Amon took pole position at a speed of 251.214 km/h (156.071 mph), 0.42 seconds ahead of Ferrari driver Jacky Ickx. The BRMs of Jo Siffert and Howden Ganley filled the second row, while the re-crowned World Championship Jackie Stewart was in seventh. At the start, Ickx's teammate, Clay Regazzoni, amazingly took the lead from eighth on the grid, while Amon did the opposite the crossed the line at the end of the first lap in eighth. Regazzoni soon was slipstreamed and passed by multiple cars as Ronnie Peterson held the lead at multiple stages throughout the race, with Stewart, François Cevert, Siffert, Ganley and Ickx were all in close proximity. Ickx, Stewart and Regazzoni all retired early and they were replaced in the pack initially by Mike Hailwood (in his first race in over six years) and later by Amon, while Peter Gethin was never too far behind. Siffert and Ganley both fell back temporarily with overheating engines, and while both returned to the front, Siffert fell back again when his gearbox became stuck in fourth gear. Amon finally made his way into the lead on lap 37 and was beginning to break away ten laps later when, intending to remove a visor tear-off, accidently ripped off the whole visor. He was forced to give up his best opportunity to secure an F1 victory when this issue combined with an overheating engine that required cooling. This left a leading pack of Peterson, Cevert, Hailwood, Ganley and Gethin. Hailwood, and the following lap Gethin, took the lead from Peterson in the final laps. However, Gethin fell to fourth place as he started the final lap, but in a car geared to gain traction out of the Parabolica corner, he found himself in the lead ahead of Peterson and Cevert. Using the slipstream, Peterson closed in on Gethin, but the British driver somehow stayed ahead, winning the race by just one hundredth of a second (0.01 seconds). Cevert crossed the line in third, just 0.09 seconds behind Gethin, and Hailwood was another 0.09 seconds down on Cevert. Ganley brought home the rear of the group for fifth, a relatively distant 0.61 seconds behind Gethin. Amon came home sixth, 32 seconds down on Gethin. Henri Pescarolo scored the fastest lap of the race on lap 9; ten other drivers recorded a lap within half a second of the Frenchman. Eight different drivers managed to lead the race, an F1 record; Peterson was the only driver to lead more than ten laps as the lead changed hands 25 times. Cevert's third place secured Tyrrell's first Constructors' Championship in their first full season of Formula One; their lead driver Stewart having won the Drivers' Championship the race before.
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