SELECT championship FROM table_name_89 WHERE outcome = "runner-up" AND surface = "clay" AND opponent_in_the_final = "ivan lendl"
Melawan lawan di Ivan Lendl terakhir, di permukaan tanah liat, dengan hasil runner-up, di mana kejuaraannya?
CREATE TABLE table_name_89 (championship VARCHAR, opponent_in_the_final VARCHAR, outcome VARCHAR, surface VARCHAR)