In 1986 Pernfors reached his first (and only) Grand Slam singles final at the French Open, where he was defeated in straight sets by Ivan Lendl 6-3,6-2,6-4.
In 1986 Pernfors reached his first (and only) Grand Slam singles final at the French Open. In the final he lost in straight sets to World No.1 Ivan Lendl 6-3,6-2,6-4.