CREATE TABLE "table1_21584646_10" (
  "week_of" text,
  "tournament" text,
  "champion" text,
  "runner_up" text,
  "semifinalists" text,
  "quarterfinalists" text
);

Question: How many champions are shown for the runner-up of stefan edberg?
SQL: SELECT COUNT("champion") FROM "table1_21584646_10" WHERE "runner_up"='Stefan Edberg';

Question: What week was stefan edberg anders järryd was semifinalist and champion is john mcenroe 7–6, 6–3?
SQL: SELECT "week_of" FROM "table1_21584646_10" WHERE "semifinalists"='Stefan Edberg Anders Järryd' AND "champion"='John McEnroe 7–6, 6–3';

Question: Who is the runner up for the champion of john mcenroe 6–2, 6–3?
SQL: SELECT "runner_up" FROM "table1_21584646_10" WHERE "champion"='John McEnroe 6–2, 6–3';

Question: Who were the  quarterfinalists for the runner-ups of mike de palmer gary donnelly?
SQL: SELECT "quarterfinalists" FROM "table1_21584646_10" WHERE "runner_up"='Mike De Palmer Gary Donnelly';

Question: Who are the quarterfinalists for runner-up  jimmy connors?
SQL: SELECT "quarterfinalists" FROM "table1_21584646_10" WHERE "runner_up"='Jimmy Connors';

Question: How many weeks are shown for the champion of john mcenroe 6–2, 6–3?
SQL: SELECT COUNT("week_of") FROM "table1_21584646_10" WHERE "champion"='John McEnroe 6–2, 6–3';