Kley enjoyed most of his tennis success while playing doubles. During his career he won one doubles title. He achieved a career-high doubles ranking of world number 56 in 1985.
Doubles titles (1)
|Outcome||No.||Date||Tournament||Surface||Partner||Opponents in the final||Score in the final|
|Runner-up||1.||1985||Forest Hills, U.S.||Clay||23x15px Givaldo Barbosa|| 23x15px Ken Flach
23x15px Robert Seguso
|Winner||1.||1985||Madrid, Spain||Clay||23x15px Givaldo Barbosa|| 23x15px Jorge Bardou
23x15px Alberto Tous