Cova got his first fame at the 1982 European Championships in Athens, where he surprisingly outsprinted the main favourite Werner Schildhauer from East Germany, to win his first international championship title. In the next year, Cova wasn't the main favourite at the first World Championships held in Helsinki, being considered only as a possible medal winner. The 10,000 m final at Helsinki was run in slow pace, with thirteen runners still in a leading pack at the bell. With only 30 metres to go, Cova was only in fifth place, but then sprinted forward to win. Schildhauer finished in second place. The top four runners sprinted to the finish line in 0.33 seconds (see Yleisurheilun MM-kisat Helsingissä / Athletics World Championships in Helsinki, edited by the Juoksija/Runner magazine, Helsinki: 1983).