Career
Vyatchanin has lived and trained in Taganrog since 1999 and is a student of the South Federal University. In 2015 he started to compete for Serbia. In 2013 he announced an intention to leave the Russian team and compete for another country saying he gave all he could to team Russia.
In January 2015 Serbian swimming federation announced that Vyatchanin is in process of getting Serbian citizenship and that will represent this country in future.
2009 European Short Course Championships - gold medal (100 m backstroke).