Vasiliy Grishin was born in 1914.

Leitenant Grishin took part in the Finnish-Soviet Winter War where he served in 38 IAP between December 1939 and March 1940, flying Polikarpov I-153s.

When Germany invaded the Soviet Union on 22 June 1941, starshiy leitenant Grishin still served in 38 IAP. This unit was at the time still equipped with Polikarpov I-153s.

Starshiy leitenant Grishin and mladshiy leitenant Ivan Ilyin both claimed a shared Ju 88 ”in group” on 12 August. It’s possibly that this was the same claim.

The same thing happened two days later, on 14 August, when both claimed a shared Bf 109 ”in group”.

On 17 August, 38 IAP claimed one shared destroyed Do 17 and one shared destroyed Bf 110. Involved pilots seems to have included starshiy leitenant Grishin, leitenant Ivan Konovchenko and mladshiy leitenant Ivan Ilyin.
Leitenant Konovchenko also claimed one Bf 109 during the day.

In October 1941, he was posted away from 38 IAP.
He departed with a regiment from 1 ZAP for rearmament and resupply, but in January 1942, for health reasons, was decommissioned from fighter aviation, and was appointed commander of 370 OAE of the BelVO Air Force.

Grishin ended the war with 1 biplane victory.
This had been claimed during 88 combat missions.

Claims:

Kill no.	Date	Time	Number	Type	Result	Plane type	Serial no.	Locality	Unit
	1941
	12/08/41		1/?	Ju 88	Shared destroyed	I-153		North-Western Front	38 IAP
	14/08/41		1/?	Bf 109	Shared destroyed	I-153		North-Western Front	38 IAP
	17/08/41		1/?	Do 17	Shared destroyed	I-153		North-Western Front	38 IAP
	17/08/41		1/?	Bf 110	Shared destroyed	I-153		North-Western Front	38 IAP
1	09/09/41		1	Bf 110	Destroyed	I-153		North-Western Front	38 IAP

Biplane victories: 1 and 4 shared destroyed.
TOTAL: 1 and 4 shared destroyed.

Sources:
All aces of Stalin 1936-1953 – Mikhail Bykov, 2014
Soviet Aces 1936-1953
Soviet Fighter Pilots 1936-1953 - Mikhail Bykov