His last loss in a final came to Jiri Novak in Gstaad on 13 July , 2003 .
Defeat denied him a share of John McEnroe 's professional - era winning record for a season of 82 - 3 set in 1984 .
His last loss in a final came to Jiri Novak in Gstaad on 13 July , 2003 , while defeat denied him a share of John McEnroe 's professional - era winning record for a season of 82 - 3 set in 1984 .