CREATE TABLE table_204_463 (id DECIMAL, "year" DECIMAL, "division" DECIMAL, "league" TEXT, "regular season" TEXT, "playoffs" TEXT, "open cup" TEXT)

what was the only year that division 4 qualified 2nd round of the open cup ?
SELECT "year" FROM table_204_463 WHERE "open cup" = '2nd round'
SELECT "year" FROM "table_204_463" WHERE "open cup" = '2nd round'