 Complete the following phrase:  The peak of Ryakhovskiys career came in 1958. That year he achieved a triple jump world record of at the 1958 USA-USSR International Match, improving upon Brazilian Adhemar da Silvas three-year-old record by three centimetres. Ryakhovskiys record stood for less than a year, as it was improved by fellow Soviet Oleg Fedoseyev the following May. Ryakhovskiy was selected for the Soviet team for the 