CREATE TABLE table_name_74 (partner VARCHAR(255), opponents VARCHAR(255), outcome VARCHAR(255), surface VARCHAR(255))
Who was the partner on the game which took place on a clay surface with opponents of marco chiudinelli michael lammer and a runner-up result?
    
SQL: SELECT partner FROM table_name_74 WHERE outcome = "runner-up" AND surface = "clay" AND opponents = "marco chiudinelli michael lammer"