What is the number of wins when there are 14 matches, and the No Result was less than 0?
CREATE TABLE "performance_summary" (
  "year" text,
  "matches" real,
  "wins" real,
  "losses" real,
  "no_result" real,
  "win_pct" text
);
SELECT AVG("wins") FROM "performance_summary" WHERE "matches"=14 AND "no_result"<0;