Yashin played in the Soviet Championship League for HC Dynamo Moscow, the Eishockey-Bundesliga for EHC Dynamo Berlin, and the Russian Superleague for SKA Saint Petersburg.
Yashin's career spanned multiple leagues, including top-tier competitions like the Soviet Championship League with HC Dynamo Moscow, the German national league with EHC Dynamo Berlin, and the Russian premier league with SKA Saint Petersburg.