The last race of the year, 21 laps of Estoril, would determine the manufacturer's championship, with Kawasaki leading Ducati by eighteen points, leaving both in with a chance of taking it.
Toprak Razgatlioglu led Garrett Gerloff, Michael van der Mark and Chaz Davies into turn one, but Davies passed both Gerloff and van der Mark to slot into second place behind the race one winner. At turn nine, Jonathan Rea and Michael van der Mark clashed, with Scott Redding sneaking under both of them as they clashed, but Rea took to the outside of turn thirteen and took fourth place off Redding as Chaz Davies took the lead into turn one.
As Jonathan Rea set three fastest laps in succession, Garrett Gerloff hit one of only two proper left handers, turn four, with a cold tyre and slid his bike into the gravel. Jonathan Rea caught up the lead two, building a gap of over a second over Scott Redding. Rea set the fastest lap again on lap six and, on lap eight, passed Toprak Razgatlioglu down the straight, but the Yamaha rider was able to outbreak the world champion to retain second place. Chaz Davies broke free from the pair fighting behind him, and Rea saw his chance of a win escaping if he couldn't pass Razgatlioglu. Rea saw his chance and went for a gap that then closed, Rea carrying a little too much speed. Rea's front tyre gave up and Rea went down, gently tapping Razgatlioglu's Yamaha on its way off the track. Razgatlioglu stayed on and only lost three quarters of a second to Redding. Kawasaki now had to hope Alex Lowes, in a comfortable fifth place, or Xavi Fores, fighting in eighth place with Leon Haslam and Michael Ruben Rinaldi either side of him, finished higher than ninth place if they were to take the manufacturers title. Jonathan Rea rejoined in sixteenth place but not at the same pace he had before his off.
Chaz Davies, halfway through the race, set the fastest lap of 1'36.806 as he bolted off in the distance as Scott Redding started to close the two second gap a few tenths a lap. On lap fourteen, Loris Baz, having caught up with the seventh place battle, started having braking issues and eventually took to the escape road to retire, only to find Jonas Folger blindly followed him. Baz gesticulated to Folger that his bike was broken and Folger returned to the race three places down.
On lap sixteen, Alex Lowes crashed out at turn seven, turning all Kawasaki eyes to Xavi Fores in the hope that he could net them the manufacturer's title. Fores was in the middle of a battle for seventh place, constantly swapping places with Michael Ruben Rinaldi and Leon Haslam.
Five laps from the end, Scott Redding had caught Toprak Razgatlioglu, the pair three seconds behind Chaz Davies, and Redding started to look for a way past. On lap nineteen of twenty one, Scott Redding passed Toprak Razgatlioglu into turn one but he had to fight the Turkish rider's constant attention as Razgatlioglu tried to take second place back and thwart Ducati's chance of a one-two finish.
As the last lap started, Chaz Davies was almost three seconds clear in the lead with Scott Redding finally breaking free from Toprak Razgatlioglu. Michael van der Mark was a further six seconds behind with Alvaro Bautista five seconds behind him. The fight for sixth place, between Michael Ruben Rinaldi, Leon Haslam, Xavi Fores and Federico Caricasulo was a further six seconds behind Bautista.
As Chaz Davies won his last race for Ducati, they held out his pinboard reading "Thanks for the great emotions". Scott Redding finished second behind his exiting teammate and said he was happier that Davies won than he would have been if he'd taken the victory himself. Toprak Razgatlioglu took his third podium of the weekend and held on to fourth place in the championship. Xavi Fores finished in eighth place, while Jonathan Rea ended up scoring two points in fourteenth place. Fores and Rea were pulled off track by Kawasaki and given t-shirts commemorating their manufacturer's title and Rea dropped to his knees to thank Fores for saving their title. A very strange end to a very strange year.
In other battles, Alvaro Bautista and Leon Haslam finished on the exact same number of points, leaving the Honda tamales to determine who came out on top by their best result, giving Bautista the honour of ninth place. Chaz Davies, third in the championship and winner of two races this year, has not got a ride for 2021.
|1||7||C. DAVIES||Ducati Panigale V4 R|
|2||45||S. REDDING||Ducati Panigale V4 R||1.951|
|3||54||T. RAZGATLIOGLU||Yamaha YZF R1||2.556|
|4||60||M. VAN DER MARK||Yamaha YZF R1||10.423|
|5||19||A. BAUTISTA||Honda CBR1000RR-R||15.473|
|6||21||M. RINALDI||Ducati Panigale V4 R||20.277|
|7||91||L. HASLAM||Honda CBR1000RR-R||21.074|
|8||12||X. FORES||Kawasaki ZX-10RR||21.291|
|9||64||F. CARICASULO||Yamaha YZF R1||22.427|
|10||66||T. SYKES||BMW S1000 RR||25.168|
|11||94||J. FOLGER||Yamaha YZF R1||26.945|
|12||50||E. LAVERTY||BMW S1000 RR||28.511|
|13||36||L. MERCADO||Ducati Panigale V4 R||32.281|
|14||1||J. REA||Kawasaki ZX-10RR||38.800|
|15||71||M. FERRARI||Ducati Panigale V4 R||46.083|
|17||13||T. TAKAHASHI||Honda CBR1000RR-R||47.295|
|18||32||S. MORAIS||Kawasaki ZX-10RR||1'01.053|
|19||84||L. CRESSON||Kawasaki ZX-10RR||1'31.338|
|RET||22||A. LOWES||Kawasaki ZX-10RR||6 Laps|
|RET||76||L. BAZ||Yamaha YZF R1||14|
|RET||31||G. GERLOFF||Yamaha YZF R1||2|