Girls 4X400m Relay

From 1974 to 1975 the short-lived 880 Medley Relay was run.  Then in 1976 to 1979 the Mile Relay was run.  In 1980 the event went metric.  The conversion of Mile Relay times to 1,600 meters relay times is the subtraction of 1.1 seconds.  Only the best relay team of a given year is listed.