CREATE TABLE "year_by_year" (
  "year" real,
  "division" real,
  "league" text,
  "regular_season" text,
  "playoffs" text,
  "open_cup" text,
  "avg_attendance" real
);

Question: Name the playoffs for 2nd round open cup
SQL: SELECT "playoffs" FROM "year_by_year" WHERE "open_cup"='2nd Round';