CREATE TABLE table_203_28 (id DECIMAL, "year" DECIMAL, "competition" TEXT, "venue" TEXT, "position" TEXT, "event" TEXT, "notes" TEXT)

how long , in km , was the event in helsinki , finland ?
SELECT "event" FROM table_203_28 WHERE "venue" = 'helsinki, finland'
SELECT "event" FROM "table_203_28" WHERE "venue" = 'helsinki, finland'