CREATE TABLE "doubles_9_3_titles_6_runners_up" (
  "outcome" text,
  "year" real,
  "championship" text,
  "surface" text,
  "partner" text,
  "opponents" text,
  "score" text
);

Question: What is the name of the partner that has a winner outcome and a hard surface?
SQL: SELECT "partner" FROM "doubles_9_3_titles_6_runners_up" WHERE "outcome"='Winner' AND "surface"='Hard';