Championship leader Nico Rosberg dominated the Russian Grand Prix was ease to record his seventh straight victory in Formula 1.
His Mercedes team-mate Lewis Hamilton was able to recovery from tenth to finish second. Despite a brief mid-race water-pressure scare.
Kimi Raikkonen took third for the Scuderia, which was the team’s 700th podium result in the sport.
As for his Ferrari team-mate Sebastian Vettel, he was out on the first lap no thanks to a double bash from ‘Russian torpedo’ Daniil Kvyat.
Vettel was attempting to pass Daniel Ricciardo for fifth up the inside into the Turn 2 on the opening lap, with Sergio Perez making it three wide on the outside line.
Vettel appeared to have made the move, only for Kvyat to tap the rear of the Ferrari and pitch it sideways and into Ricciardo, who in turn hit Perez and gave the Force India a right-rear puncture.
The Ferrari was then hit in the rear again by Kvyat in the fast Turn 3, pitching Vettel into the wall and out of the race and prompting a few F-bombs over the team radio.
Kvyat, who like team-mate Ricciardo had to pit for a new front wing, was given a ten-second stop and go penalty for causing the two collisions.
The safety car was deployed to clear up the wreckage of the Ferrari and the consequences of a separate incident in which Esteban Gutierrez hit Nico Hulkenberg’s Force India.
While Rosberg had the lead, Hamilton was running fifth, which became fourth position when he passed Felipe Massa’s Williams at Turn 2 at the restart.
Hamilton then dived up the inside of third-placed Kimi Raikkonen into Turn 4 on lap seven after The Iceman had a poor run out of the previous corner while chasing Valtteri Bottas.
Bottas was able to keep Hamilton behind when he pitted at the end of lap 16 of 53, with Hamilton emerging just behind after stopping a lap later.
But two laps later, the reigning champion was able to take second up the inside into Turn 2 even though Bottas also had the use of the DRS on the run to the corner thanks to the yet-to-stop Fernando Alonso being ahead.
Once in clear air, Hamilton did close on Rosberg, reducing the gap to 7.5 seconds by two-thirds distance prior to being warned of the water pressure issue that led to him easing off while it was checked.
The gap quickly extended to just over 13 seconds, with Rosberg eventually crossing the line 25 seconds clear after setting the fastest lap of the race on his penultimate time round the Sochi circuit.
Bottas lost out on the final podium position to Raikkonen, who ran four laps later in his first stint and emerged from his sole pitstop just in front of the Williams driver.
Massa had a lonely race to fifth, with the Williams team bringing him in for a late and risk-free stop at the end of lap 46 to switch to super-softs, presumably in case a safety car closed up the field again and he was able to attack.
He had a comfortable advantage over Fernando Alonso, who took his first points finish since last year’s Hungarian Grand Prix.
The double world champion capitalised on Toro Rosso driver Max Verstappen retiring from sixth place with an engine problem.
Kevin Magnussen delivered a strong race to take his and Renault’s first points of the season in seventh, prevailing in a tight five-car battle for the minor points positions.
He led home Romain Grosjean, who took the new Haas team’s third points finish in four races.
Perez recovered to ninth, with Jenson Button passing Carlos Sainz Jr for the final point late on. Scoring a double points finish for McLaren.
Ricciardo could only recover to P12 ahead of Jolyon Palmer after initially switching onto medium rubber following the first-lap problems and then making a second stop to bolt on softs.
Team-mate Kvyat was P15, behind Sauber’s Marcus Ericsson, after serving his penalty.
So four wins out of four for Nico Rosberg. The Mercedes driver is looking the clear favourite for the championship. Can Hamilton fight back? We shall see.
Russian Grand Prix, race results after 53 laps:
1 Nico Rosberg Mercedes 1h32m41.997s
2 Lewis Hamilton Mercedes 25.022s
3 Kimi Raikkonen Ferrari 31.998s
4 Valtteri Bottas Williams-Mercedes 50.217s
5 Felipe Massa Williams-Mercedes 1m14.427s
6 Fernando Alonso McLaren-Honda 1 Lap
7 Kevin Magnussen Renault 1 Lap
8 Romain Grosjean Haas-Ferrari 1 Lap
9 Sergio Perez Force India-Mercedes 1 Lap
10 Jenson Button McLaren-Honda 1 Lap
11 Daniel Ricciardo Red Bull-TAG Heuer 1 Lap
12 Carlos Sainz Toro Rosso-Ferrari 1 Lap
13 Jolyon Palmer Renault 1 Lap
14 Marcus Ericsson Sauber-Ferrari 1 Lap
15 Daniil Kvyat Red Bull/TAG Heuer 1 Lap
16 Felipe Nasr Sauber-Ferrari 1 Lap
17 Esteban Gutierrez Haas-Ferrari 1 Lap
18 Pascal Wehrlein Manor-Mercedes 2 Laps
– Max Verstappen Toro Rosso-Ferrari Retirement
– Sebastian Vettel Ferrari Collision
– Rio Haryanto Manor-Mercedes Collision
– Nico Hulkenberg Force India-Mercedes Collision
1 Nico Rosberg 100
2 Lewis Hamilton 57
3 Kimi Raikkonen 43
4 Daniel Ricciardo 36
5 Sebastian Vettel 33
6 Felipe Massa 32
7 Romain Grosjean 22
8 Daniil Kvyat 21
9 Valtteri Bottas 19
10 Max Verstappen 13
11 Fernando Alonso 8
12 Kevin Magnussen 6
13 Nico Hulkenberg 6
14 Carlos Sainz 4
15 Sergio Perez 2
16 Jenson Button 1
17 Stoffel Vandoorne 1
18 Jolyon Palmer 0
19 Marcus Ericsson 0
20 Pascal Wehrlein 0
21 Felipe Nasr 0
22 Esteban Gutierrez 0
23 Rio Haryanto 0
1 Mercedes 157
2 Ferrari 76
3 Red Bull-TAG Heuer 57
4 Williams-Mercedes 51
5 Haas-Ferrari 22
6 Toro Rosso-Ferrari 17
7 McLaren-Honda 10
8 Force India-Mercedes 8
9 Renault 6
10 Sauber-Ferrari 0
11 Manor-Mercedes 0
Next race: Spanish Grand Prix, Circuit de Catalunya. May 13-15.