The British swimming champions over 100 metres backstroke, formerly the (Amateur Swimming Association (ASA) National Championships) are listed below.
[1][2] The event was originally contested over 110 yards and then switched to the metric conversion of 100 metres in 1971.
In 1960 Natalie Steward set a world record of in the final.
[3] In 1962 final Linda Ludgrove also set a new world record of 1.10.9 sec.
[4] Kathy Read (married name Osher) has won a record number of senior National titles (29), which includes ten 100 metres backstroke titles.