CREATE TABLE "mixed_doubles_finals_15_7_8" (
  "outcome" text,
  "year" real,
  "championship" text,
  "surface" text,
  "partner" text,
  "opponents" text,
  "score" text
);

Question: Name the total number of years where runner-up and championship is us open
SQL: SELECT COUNT("year") FROM "mixed_doubles_finals_15_7_8" WHERE "outcome"='Runner-up' AND "championship"='US Open';

Question: Name the surfaace where outcome is runner-up and championship is us open
SQL: SELECT "surface" FROM "mixed_doubles_finals_15_7_8" WHERE "outcome"='Runner-up' AND "championship"='US Open';

Question: Name the partner for mark woodforde martina navratilova
SQL: SELECT "partner" FROM "mixed_doubles_finals_15_7_8" WHERE "opponents"='Mark Woodforde Martina Navratilova';

Question: Name the score for rick leach zina garrison
SQL: SELECT "score" FROM "mixed_doubles_finals_15_7_8" WHERE "opponents"='Rick Leach Zina Garrison';