Suzuka - Valtteri Bottas jumped from third to first with an electric start to win the Japanese Grand Prix on Sunday ahead of Ferrari's Sebastian Vettel and Mercedes teammate Lewis Hamilton.
With only Bottas now able to overtake Hamilton in the standings, Mercedes clinched an unprecedented sixth successive drivers'-constructors' world championship double.
"I'm happy, very happy," said flying Finn Bottas, who ended a six-month wait for his third victory of 2019 after winning the season-opener in Australia and the Azerbaijan Grand Prix in April.
"Starting third isn't easy. I had a really nice start, managed to get the lead and then the pace was super good, I could really control the race," he added.
"I'm really proud to be part of the team. A sixth title is really impressive."
"Firstly congratulations to the team," said Hamilton, who now leads the drivers' standings by 64 points from Bottas. "That's the main point. I just wanted to bring home good points for the team."
Emotional Mercedes team principal Toto Wolff dedicated his team's achievement to Formula One legend Niki Lauda, who died earlier this year.
"We want to dedicate this to Niki because he's just been such an important part from the beginning of the journey," said Wolff.
"I miss him every day," said Wolff, who like Lauda hails from Austria. "When we talk in our group of friends, it's surreal that he's not here."
Ferrari had enjoyed a front row lock-out in the morning qualifying session caused by Typhoon Hagibis but that was as good as "Super Sunday" got for them as their race unravelled right from the start.
Vettel twitched before the lights went out and his hesitation enabled the fast starting Bottas to leapfrog from third into the lead.
"It was my mistake," admitted Vettel who escaped a penalty for his false start. "It was worse than a poor start. It was a really poor start. With the lack of pace today, second place today was probably the maximum."
Max Verstappen enjoyed a bullet launch off the grid from fifth in the Red Bull and was overtaking the Ferrari of Charles Leclerc on the outside of turn two when the Monegasque drove into the Dutchman, causing him to spin.
"He just drove into the side of my car," complained an unhappy Verstappen, who retired on lap 15.
Leclerc's front wing was damaged but he soldiered on with sparks and debris flying dangerously before he was forced to pit for a new nose at the start of lap four.
He was subsequently summoned to face the stewards and penalised five seconds for causing the collision and given a further 10 seconds penalty for continuing to drive his car in an unsafe condition.
That meant Leclerc's miserable day was completed by being relegated from sixth place to seventh behind Daniel Ricciardo's Renault.
After the drama at the start, Vettel was left sandwiched between the two Mercedes and took the first strategic move when he dived into the pits for a new set of soft tyres on lap 17.
Bottas mirrored him on the next lap and stayed in front of Vettel.
Hamilton was left in the lead and Mercedes tried to keep him out on a one-stop strategy, but by lap 22 Hamilton was moaning that his tyres were "dead" and he too was brought in.
Hamilton, on fresher rubber, began to close on Vettel who pitted for his final change to medium tyres on lap 32, rejoining in third.
Bottas took on fresh soft tyres five laps later leaving Hamilton back in the lead but worried he would have to stop again.
"Tell me what I have to do to win this race," pleaded Hamilton over team radio.
Mercedes gambled on bringing him in again on lap 43 for the quickest compound. It allowed Vettel back into second, but Hamilton was now energised and closed the gap with a new lap record.
Hamilton continued to swarm all over Vettel in the closing stages but was unable to get past as Vettel held firm in a captivating duel.
Hamilton can still clinch the drivers' championship at the next race in Mexico in a fortnight's time as he holds a 64-point lead over Bottas.
Results from Japan Formula One Grand Prix after 52 laps of the 5.807km Suzuka Circuit on Sunday:
1. Valtteri Bottas (FIN/Mercedes) 301.664km in 1hr 21min 46.755sec (ave speed 221.325kph)
2. Sebastian Vettel (GER/Ferrari) at 13.343sec
3. Lewis Hamilton (GBR/Mercedes) at 13.858
4. Alexander Albon (THA/Red Bull) at 59.537
5. Carlos Sainz Jr (ESP/McLaren) at 1:09.101
6. Daniel Ricciardo (AUS/Renault) at 1 lap
7. Charles Leclerc (MON/Ferrari) at 1 lap
8. Pierre Gasly (FRA/Toro Rosso) at 1 lap
9. Sergio Perez (MEX/Racing Point) at 1 lap
10. Nico Hulkenberg (GER/Renault) at 1 lap
11. Lance Stroll (CAN/Racing Point) at 1 lap
12. Daniil Kvyat (RUS/Toro Rosso) at 1 lap
13. Lando Norris (GBR/McLaren) at 1 lap
14. Kimi Raikkonen (FIN/Alfa Romeo) at 1 lap
15. Romain Grosjean (FRA/Haas) at 1 lap
16. Antonio Giovinazzi (ITA/Alfa Romeo) at 1 lap
17. Kevin Magnussen (DEN/Haas) at 1 lap
18. George Russell (GBR/Williams) at 2 laps
19. Robert Kubica (POL/Williams) at 2 laps
Not classified: Max Verstappen (NED/Red Bull) retired lap 15
Fastest lap: Hamilton 1:30.983 (lap 45)
1. Lewis Hamilton (GBR) 338
2. Valtteri Bottas (FIN) 274
3. Charles Leclerc (MON) 221
4. Max Verstappen (NED) 212
5. Sebastian Vettel (GER) 212
6. Carlos Sainz Jr (ESP) 76
7. Pierre Gasly (FRA) 73
8. Alexander Albon (THA) 64
9. Daniel Ricciardo (AUS) 42
10. Nico Hülkenberg (GER) 35
11. Sergio Perez (MEX) 35
12. Lando Norris (GBR) 35
13. Daniil Kvyat (RUS) 33
14. Kimi Raikkonen (FIN) 31
15. Kevin Magnussen (DEN) 20
16. Lance Stroll (CAN) 19
17. Romain Grosjean (FRA) 8
18. Antonio Giovinazzi (ITA) 4
19. Robert Kubica (POL)
1. Mercedes 612 (champions)
2. Ferrari 433
3. Red Bull 323
4. McLaren 111
5. Renault 77
6. Toro Rosso 59
7. Racing Point 54
8. Alfa Romeo 35
9. Haas 28
10. Williams 1