CREATE TABLE table_203_28 (id NUMBER, "year" NUMBER, "competition" CLOB, "venue" CLOB, "position" CLOB, "event" CLOB, "notes" CLOB)

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'