CREATE TABLE table_204_615 (id DECIMAL, "date" TEXT, "opponent" TEXT, "result" TEXT, "goal scorers  ( season goals ) " TEXT, "goalie saves" TEXT, "attendance" TEXT)

which game did the wisconsin badgers women 's ice hockey team win by the most points ?
SELECT "date" FROM table_204_615 ORDER BY "result" - "result" DESC LIMIT 1
SELECT "date" FROM "table_204_615" ORDER BY "result" - "result" DESC NULLS LAST LIMIT 1