Team Summary:
For the Russian Grand Prix weekend Pirelli had supplied the soft, ultrasoft and hypersoft tyres. The opening Friday session would see several Friday drivers taking part with Latifi replacing Perez, Giovinazzi replacing Ericsson, Markelov relacing Sainz and Norris in for Alonso. The session would commence with drivers co0ming out using all three types of tyres. Vandoorne on the soft tyre would set the first time with a 1m:40.121. He would improve with a 1m:39.057 being the only driver on the track. The only team not to have sent their drivers out was Mercedes.

With just under an hour and fifteen minutes remaining more drivers would start to come out including both Sauber's, Raikkonen, and both Mercedes. Leclerc would set a 1m:39.887 to be second but Raikkonen would go quickest with a 1m:37.063 with Bottas now second followed by Vandoorne, Norris, Leclerc and Giovinazzi. But Hulkenberg moved up to third but again the order would change quickly with Ricciardo going quickest with a 1m:36.600 using the hypersoft tyre. Verstappen was now second followed by Raikkonen, and Hamilton. But Bottas would move into second using the ultrasoft tyre. Magnussen was now sixth dropping to seventh as Hamilton moved into third. Gasly on the ultrasoft tyre would move into seventh.

On his first lap Vettel would go third while Hamilton would set a 1m:35.326 to be quickest still on the ultrasoft tyre. Of the top ten only the Mercedes and Gasly were now on the hypersoft tyre. Vettel had dropped to fifth while for Williams their drivers after having set improved times would be still be down the order in 17th and 18th. Verstappen still on the hypersoft tyre would go quickest with a 1m:34.960 followed by Hamilton, Ricciardo, Bottas, Vettel and Raikkonen. The track would empty as drivers came back in to return their set of Pirelli tyres. With forty five minutes remaining drivers would start to return with Bottas and Hamilton on the soft tyre. Norris on the hypersoft tyre would move up to ninth dropping to tenth.

With just over thirty minutes remaining the order was Verstappen, Hamilton, Bottas, Ricciardo, Vettel, Ocon, Magnussen, Hulkenberg, Grosjean and Gasly tenth. Bottas would improve to be second as Vettel would go quickest with a 1m:34.488 using the hypersoft tyre. Ocon ad improved his time but remained sixth. After their first hypersoft tyre runs the Williams drivers were 15th and 18th. Hamilton would move into second but Verstappen would take this spot using the hypersoft tyre. Leclerc would move up to 13th seeing the Williams drivers now 17th and 19th. Giovinazzi was now tenth using the hypersoft tyre. With the end of the session the Williams drivers would be 18th and 20th. The top ten would be Vettel followed by Verstappen, Hamilton, Bottas, Ricciardo, Ocon, Raikkonen, Magnussen, Hulkenberg and Giovinazzi. This session was a repeat of previous ones when the Williams team struggled to set competitive times in the difficult FW41.

Lance Stroll:
Lance would follow his team-mate out but was using the ultrasoft tyre. Lance would also only complete a single installation lap. Lance would quickly return still on the ultrasoft tyre. But he would pit without setting a time. He would again return again pitting after a single lap. The team would report that Lance was conducting some front wing testing. With just over and hour remaining Lance would come out using new ultrasoft tyre. He would set a 1m:40.461 to be slowest. He would improve with a 1m:39.137 to be 17th one place behind his team-mate. Lance had also pitted completing a seven lap run. Lance was still in his pit while his team-mate did a hypersoft tyre run. With under thirty minutes remaining Lance would return running on the hypersoft tyre. Lance would have a spin at Turn 7 ruining his tyres that would see him pit without improving currently 19th. He would drop to 20th and slowest. The team would announce that Lance would not be returning.

Sergey Sirotkin:
Sergey would be first out for Williams running on the soft tyre. Sergey would pit after a single installation lap. Sergey would return this time on the ultrasoft tyre for his first timed run. Sergey would set a 1m:39.834 to be 15th. A 1m:39.711 would see Sergey now 16th. Sergey would continue to lap and would set a 1m:39.109 to be 15th, dropping to 17th. He would pit after a nine lap run. With forty minutes remaining Sergey would return this time on the hypersoft tyre and would set a 1m:37.687 to be 13th. He would drop to 15th. A 1m:37.225 would see Sergey moving up to 14th. He would pit currently 15th. Sergey had been asking about his front left brake pulling and what can be done about it. He was not happy under braking. In the pits he would drop to 17th. With just over fifteen minutes remaining Sergey would return on the used hypersoft tyres. Sergey would continue to lap and would complete fourteen laps on the hypersoft tyre.