Russian GP: Pirelli Friday Practice Review


By Courtesy of Pirelli
September 24 2021

 
 Pirelli Russian GP Friday Practice Review
 
Pirelli Friday Review
 
Pirell Tyres
 

FRIDAY TYRE SUMMARY
* Valtteri Bottas led a Mercedes one-two in both free practice sessions today, using the P Zero Red soft C5 tyre on each occasion. The Finn, who also topped both Friday sessions last year in Sochi, went faster than he did last year in FP1, but couldn’t quite match his 2020 benchmark in FP2.
* However, it was a slightly different pair of practice sessions compared to normal. With persistent rain expected tomorrow, the drivers concentrated on collecting data across all three compounds for Sunday, when weather conditions are expected to be still variable.
* Ferrari driver Charles Leclerc and Red Bull’s Max Verstappen will be starting at the back of the grid due to engine changes – which meant that qualifying simulation was not a priority for them in free practice.
* Conditions were reasonably cool today, with ambient temperatures around 22 degrees centigrade and track temperatures up to 32 degrees during FP2.
* A red flag interrupted the FP2 session with 20 minutes to go, disrupting some of the long runs. This made it harder to assess the performance gaps between the compounds, but so far there is around 0.8 seconds between P Zero Red soft and P Zero Yellow medium, and an estimated 0.5 seconds between medium and P Zero White hard.

MARIO ISOLA - HEAD OF CAR RACING
“Tomorrow’s expected weather influenced free practice today, with the drivers concentrating more on collecting plenty of data over all three compounds as well as setting a lap time just in case FP2 has an influence on the grid positions for the race, with a strong chance that tomorrow will see wet conditions all day. The circuit actually offered quite good grip and, as expected, plenty of track evolution, although the rain tomorrow is likely to reset the asphalt, which adds to the question marks. Under these circumstances, the red flag in FP2 was unfortunate, with the teams likely to head into Sunday’s race with a distinct lack of dry running.”

 
Pirelli Friday Review
 
Pirelli Friday Review
 
TOP 3 TIMES
FP1
Bottas		1m34.427s	SOFT C5 NEW
Hamilton	1m34.638s	SOFT C5 NEW
Verstappen	1m34.654s	SOFT C5 NEW

FP2
Bottas		1m33.593s	SOFT C5 NEW
Hamilton	1m33.637s	SOFT C5 NEW
Gasly		1m33.845s	SOFT C5 NEW

BEST TIME BY COMPOUND
FP1
HARD C3		Bottas		1m36.412s
MEDIUM C4	Norris		1m36.989s
SOFT C5		Bottas		1m34.427s

FP2
HARD C3		Norris		1m35.694s
MEDIUM C4	Bottas		1m35.298s
SOFT C5		Bottas		1m33.593s

MOST LAPS BY COMPOUND SO FAR
COMPOUND	DRIVER				LAPS
HARD C3		Bottas, Sainz			19
MEDIUM C4	Norris				19
SOFT C5		Leclerc, Ocon, Tsunoda, Vettel	15

TYRE STATISTICS OF THE DAY
 			HARD	MEDIUM	SOFT
Kms driven*		1368	1532	2102
Sets used overall**	19	20	54

* The above number gives the total amount of kilometres
driven in FP1 and FP2 today, all drivers combined.
** Per compound, all drivers combined.
 
Pirelli Tyres