CREATE TABLE table_203_750 (id DECIMAL, "#" DECIMAL, "date" TEXT, "venue" TEXT, "opponent" TEXT, "score" TEXT, "result" TEXT, "competition" TEXT)

what date gives was their only loss ?
SELECT "date" FROM table_203_750 WHERE "result" = 'loss'
SELECT "date" FROM "table_203_750" WHERE "result" = 'loss'