Boris Solomatin was born in 1912.

He graduated from the flight school in Jengelsskaja in 1936.

Leitenamt Solomatin took part in the Nomonhan Incident in 1939, serving in 22 IAP and flying I-16s between May and July 1939.

On 24 July 1939, a Ki-30 (s/n 159) from 16th Sentai was shot down by enemy fighters at ”Komatsu” Height and the crew was killed; pilot Corporal Seiji Kamiide and gunner Sergeant Ichirô Miyazaki.
Leitenant Pavel Solntsev, leitenant Viktor Gavrilov, starshiy leitenant Petr Grayevskiy, leitenant Solomatin and leitenant Vasiliy Trubchenko of 22 IAP (I-16) claimed two shared enemy bombers over the Khamardaba Mountains together with three other pilots. It’s possible that this combat was against the Ki-30s from 16th Sentai, which lost one aircraft.
While trying to fire on a Japanese flyer in his parachute, leitenant Solomatin got his fighter snagged in the parachute and the I-16 was damaged. He was forced to make an emergency landing with a retracted landing gear and in this, suffered trauma and burns. Two days later, on 26 July, he was evacuated back to a hospital the Soviet Union.
Starshiy leitenant Viktor Chistyakov claimed a shared Ki-27 (reported as a ”I-97”) ”in group”.

During his time in Mongolia, Solomatin had taken part in five air combats.

Solomatin was decorated with the Order of the Red Banner on 17 November 1939.

Starshiyi leitenant Solomatin took part in the Finnish-Soviet Winter War of 1939-1940, flying Polikarpov I-153s in 7 IAP between February and March 1940.

When Germany invaded the Soviet Union on 22 June 1941, podpolkovnik Solomatin served in 92 IAP, which was equipped with Polikarpov I-153s (54) and a small number of I-16s (3). This unit belonged to the South-Western Front.

On 8 March 1942, 92 IAP became operational on the Volkhov Front. At this time, they had re-equipped with LaGG-3s.

Solomatin was decorated with the Order of the Red Star on 12 March 1942.

On 22 April 1943, he was decorated with the Order of Lenin.

He was decorated with the Order of Aleksandr Nevsky on 15 October 1943.

On 25 December 1944, he was decorated with a second Order of the Red Banner.

Solomatin left 92 IAP in December 1944 and in January 1945, he was posted to 31 GIAP where he remained to March 1945. In March 1945, he was posted to 150 GIAP where he remained to the end of the war.

Solomatin ended the war with 1 biplane victory and a total of 4.
These had been claimed during 289 combat missions and 18 air combats.

On 13 June 1945, he was decorated with a third Order of the Red Banner.

Claims:

Kill no.	Date	Time	Number	Type	Result	Plane type	Serial no.	Locality	Unit
	1939
	24/07/39		1/8	Enemy bomber	Shared destroyed	I-16		Khamardaba Mountains	22 IAP
	24/07/39		1/8	Enemy bomber	Shared destroyed	I-16		Khamardaba Mountains	22 IAP
	1941
1	23/06/41		1	He 111	Destroyed	I-153		South-Western Front	92 IAP
	1942
2	24/03/42		1	Bf 109	Destroyed	LaGG-3		Volkhov Front	92 IAP
3	25/03/42		1	Ju 88	Destroyed	LaGG-3		Volkhov Front	92 IAP
4	19/09/42		1	Ju 87	Destroyed	LaGG-3		Volkhov Front	92 IAP

Biplane victories: 1 destroyed.
TOTAL: 4 and 2 shared destroyed.

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