Question: What year was the match were xavier malisse was the Runner-up against Lleyton Hewitt?
SQL: SELECT "Year" FROM "2-1551805-6" WHERE "Outcome" = 'Runner-up' AND "Opponent" = 'Lleyton Hewitt';

Question: What year was the match against Filippo Volandri where xavier malisse was Runner-up?
SQL: SELECT "Year" FROM "2-1551805-6" WHERE "Outcome" = 'Runner-up' AND "Opponent" = 'Filippo Volandri';