The Women's 50 metre backstroke S4 swimming event at the 2004 Summer Paralympics was competed on 20 September. It was won by Mayumi Narita, representing Japan.
1st round
Qualified for final round
Heat 1 20 Sept. 2004, morning session Rank Athlete Time Notes1 51.08 2 59.35 3 1:00.51 4 1:10.06
Heat 2 20 Sept. 2004, morning session Rank Athlete Time Notes1 52.61 2 54.05 3 1:05.64 4 1:06.68 5 1:12.50
Final round
20 Sept. 2004, evening session Rank Athlete Time Notes 49.54 PR 51.51 53.37 4 57.18 5 1:01.27 6 1:04.59 7 1:06.09 8 1:07.76
References