| Final 18: 02 |   | time | gap | L | Ag | Rct | pts | 50m |  | 1. Jenny Thompson |   United States | 57.96s | CR | 4 | 30 | 0.79 | 991 | 26.89s |  | 2. Otylia Jedrzejczak |   Poland | 58.22s | +0.26s | 3 | 19 | 0.86 | 985 | 27.31s |  | 3. Martina Moravcova |   Slovakia | 58.24s | +0.28s | 5 | 27 | 0.79 | 984 | 27.20s |  | 4. Alena Popchanka |   Belarus | 58.90s | +0.94s | 6 | 23 | 0.74 | 968 | 27.43s |  | 5. Yafei Zhou |   China | 59.08s | +1.12s | 1 | 19 | 0.78 | 963 | 27.71s |  | 6. Anna-Karin Kammerling |   Sweden | 59.14s | +1.18s | 2 | 22 | 0.77 | 962 | 26.65s |  | 7. Yuko Nakanishi |   Japan | 59.32s | +1.36s | 8 | 22 | 0.74 | 957 | 28.39s |  | 8. Natalie Coughlin |   United States | 59.63s | +1.67s | 7 | 20 | 0.71 | 950 | 27.60s |   
| World Record: Inge de Bruijn, Netherlands 57.96s Sydney, Australia 17th September 2000. |  | Championship Record: Petricia Thomas, Australia 58.27s Fukuoka, Japan 28th July 2001. |   
|
 Semi-Finals - Sunday, 20th July 18:02  |  | Best 8 times advanced to Final.  |   
| Semi 1 18:02 |   | time | gap | L | Ag | Rct | pts | Rk | 50m |  | 2. Martina Moravcova |   Slovakia | 58.05s | CR +0.06s | 4 | 27 | 0.80 | 989 | 2. | 27.08s |  | 4. Alena Popchanka |   Belarus | 58.61s | +0.62s | 3 | 23 | 0.76 | 975 | 4. | 27.49s |  | 5. Anna-Karin Kammerling |   Sweden | 58.71s | +0.72s | 5 | 22 | 0.80 | 972 | 5. | 26.89s |  | 9. Vered Borochovski |   Israel | 59.41s | +1.42s | 6 | 18 | 0.80 | 955 | 9. | 27.67s |  | 11.Chantal Groot |   Netherlands | 59.58s | +1.59s | 8 | 20 | 0.83 | 951 | 11. | 27.91s |  | 13.Inge Dekker |   Netherlands | 59.74s | +1.75s | 2 | 17 | 0.90 | 947 | 13. | 27.98s |  | 14.Annika Mehlhorn |   Germany | 59.76s | +1.77s | 1 | 19 | 0.79 | 946 | 14. | 27.84s |  | 15.Jennifer Button |   Canada | 59.93s | +1.94s | 7 | 25 | 0.79 | 942 | 15. | 28.39s |   
| Semi 2 |   | time | gap | L | Ag | Rct | pts | Rk | 50m |  | 1. Jenny Thompson |   United States | 57.99s | CR | 4 | 30 | 0.81 | 990 | 1. | 27.27s |  | 3. Otylia Jedrzejczak |   Poland | 58.44s | +0.45s | 5 | 19 | 0.85 | 979 | 3. | 27.58s |  | 6. Natalie Coughlin |   United States | 58.97s | +0.98s | 3 | 20 | 0.69 | 966 | 6. | 27.56s |  | 7. Yafei Zhou |   China | 59.10s | +1.11s | 2 | 19 | 0.77 | 963 | 7. | 27.36s |  | 8. Yuko Nakanishi |   Japan | 59.28s | +1.29s | 1 | 22 | 0.71 | 958 | 8. | 28.04s |  | 10.Jess Schipper |   Australia | 59.48s | +1.49s | 7 | 16 | 0.74 | 953 | 10. | 28.13s |  | 12.Junko Onishi |   Japan | 59.72s | +1.73s | 8 | 28 | 0.80 | 947 | 12. | 28.54s |  | 16.Johanna Sjoberg |   Sweden | 59.97s | +1.98s | 6 | 25 | 0.88 | 941 | 16. | 27.75s |   
| Heat 8 |   | time | gap | L | Ag | Rct | pts | Rk | 50m |  | 1. Jenny Thompson |   United States | 58.14s | CR | 5 | 30 | 0.81 | 987 | 1. | 27.31s |  | 4. Natalie Coughlin |   United States | 59.05s | +0.91s | 4 | 20 | 0.71 | 964 | 4. | 27.77s |  | 9. Yafei Zhou |   China | 59.69s | +1.55s | 3 | 19 | 0.81 | 948 | 9. | 27.60s |  | 10.Inge Dekker |   Netherlands | 59.72s | +1.58s | 1 | 17 | 0.92 | 947 | 10. | 27.92s |  | 19.Libby Lenton |   Australia | 1:00.88 | +2.74s | 7 | 18 | 0.77 | 919 | 19. | 28.53s |  | 20.Amanda Loots |   South Africa | 1:01.04 | +2.90s | 2 | 24 | 0.72 | 915 | 20. | 28.53s |  | 21.Francesca Segat |   Italy | 1:01.34 | +3.20s | 6 | 20 | 0.81 | 907 | 21. | 28.59s |  | 22.Sara Oliveira |   Portugal | 1:01.52 | +3.38s | 8 | 17 | 0.78 | 903 | 22. | 28.88s |   
| Heat 7 |   | time | gap | L | Ag | Rct | pts | Rk | 50m |  | 3. Otylia Jedrzejczak |   Poland | 58.89s | +0.75s | 4 | 19 | 0.85 | 968 | 3. | 28.01s |  | 4. Anna-Karin Kammerling |   Sweden | 59.05s | +0.91s | 5 | 22 | 0.83 | 964 | 4. | 27.19s |  | 8. Vered Borochovski |   Israel | 59.66s | +1.52s | 6 | 18 | 0.83 | 949 | 8. | 27.66s |  | 13.Yuko Nakanishi |   Japan | 1:00.01 | +1.87s | 1 | 22 | 0.72 | 940 | 13. | 28.44s |  | 14.Annika Mehlhorn |   Germany | 1:00.08 | +1.94s | 2 | 19 | 0.84 | 939 | 14. | 28.24s |  | 15.Junko Onishi |   Japan | 1:00.09 | +1.95s | 3 | 28 | 0.85 | 938 | 15. | 28.38s |  | 16.Chantal Groot |   Netherlands | 1:00.13 | +1.99s | 7 | 20 | 0.82 | 937 | 16. | 28.03s |  | -. Wei Ling Joscelin Yeo |   Singapore | DNS |   | 8 | 24 | - | - | -. |   |   
| Heat 6 |   | time | gap | L | Ag | Rct | pts | Rk | 50m |  | 2. Martina Moravcova |   Slovakia | 58.64s | +0.50s | 4 | 27 | 0.83 | 974 | 2. | 27.58s |  | 6. Alena Popchanka |   Belarus | 59.33s | +1.19s | 5 | 23 | 0.76 | 957 | 6. | 28.29s |  | 7. Johanna Sjoberg |   Sweden | 59.60s | +1.46s | 3 | 25 | 0.89 | 950 | 7. | 27.76s |  | 11.Jess Schipper |   Australia | 59.90s | +1.76s | 2 | 16 | 0.73 | 943 | 11. | 28.20s |  | 12.Jennifer Button |   Canada | 1:00.01 | +1.87s | 6 | 25 | 0.79 | 940 | 12. | 28.37s |  | 17.Fabienne Dufour |   Belgium | 1:00.80 | +2.66s | 1 | 22 | 0.88 | 921 | 17. | 28.49s |  | 18.Natalia Soutiagina |   Russia | 1:00.82 | +2.68s | 7 | 23 | 0.92 | 920 | 18. | 29.12s |  | 26.Maj Hillesund |   Norway | 1:02.85 | +4.71s | 8 |   | 0.80 | 870 | 26. | 29.07s |   
| Heat 5 |   | time | gap | L | Ag | Rct | pts | Rk | 50m |  | 23.Fabienne Nadarajah |   Austria | 1:01.65 | +3.51s | 4 | 18 | 0.84 | 900 | 23. | 28.26s |  | 24.Petra Zahrl |   Austria | 1:01.69 | +3.55s | 6 | 22 | 0.80 | 899 | 24. | 29.25s |  | 25.Ivi Monteiro |   Brazil | 1:02.32 | +4.18s | 7 | 18 | 0.82 | 883 | 25. | 29.95s |  | 29.Hang Yu Sze |   Hong Kong | 1:03.47 | +5.33s | 3 | 15 | 0.77 | 855 | 29. | 29.13s |  | 31.Elizabeth Van Welie |   New Zealand | 1:03.61 | +5.47s | 1 | 23 | 0.79 | 851 | 31. | 30.17s |  | 33.Lee Kelleher |   Ireland | 1:03.69 | +5.55s | 2 |   | 0.75 | 850 | 33. | 29.44s |  | 35.Yan Kay Flora Kong |   Hong Kong | 1:04.44 | +6.30s | 5 | 18 | 0.80 | 831 | 35. | 30.32s |  | 36.Marcella Amar |   Brazil | 1:04.73 | +6.59s | 8 | 28 | 0.85 | 824 | 36. | 30.62s |   
| Heat 4 |   | time | gap | L | Ag | Rct | pts | Rk | 50m |  | 28.Maria Rodriguez |   Venezuela | 1:03.38 | +5.24s | 4 | 25 | 0.87 | 857 | 28. | 30.40s |  | 32.Gulsah Gunenc |   Turkey | 1:03.62 | +5.48s | 5 | 18 | 0.86 | 851 | 32. | 30.12s |  | 34.Vanessa Duenas |   Colombia | 1:04.13 | +5.99s | 1 |   | 0.71 | 839 | 34. | 29.89s |  | 37.Angela Galea |   Malta | 1:04.88 | +6.74s | 2 | 20 | 0.86 | 821 | 37. | 30.71s |  | 39.Irina Shlemova |   Uzbekistan | 1:05.98 | +7.84s | 6 | 19 | 0.80 | 794 | 39. | 30.83s |  | 42.Mariana Bertellotti |   Argentina | 1:06.70 | +8.56s | 8 | 23 | 0.83 | 777 | 42. | 31.45s |  | -. Raquel Felgueiras |   Portugal | DNS |   | 7 | 23 | - | - | -. |   |   
| Heat 3 |   | time | gap | L | Ag | Rct | pts | Rk | 50m |  | 30.Kolbrun Yr Kristjansdottir |   Iceland | 1:03.49 | +5.35s | 4 | 20 | 0.76 | 854 | 30. | 29.37s |  | 38.Sharntelle Mclean |   Trinidad Tobago | 1:05.36 | +7.22s | 5 | 19 | 0.88 | 809 | 38. | 30.80s |  | 40.Richa Mishra |   India | 1:06.08 | +7.94s | 3 | 22 | 0.94 | 792 | 40. | 30.90s |  | 41.Yamile Bahamonde |   Ecuador | 1:06.29 | +8.15s | 6 | 16 | 0.80 | 787 | 41. | 31.32s |  | 43.Sabria Faiza Dahane |   Algeria | 1:07.04 | +8.90s | 7 | 18 | 0.84 | 769 | 43. | 31.49s |  | 45.Geraldine Arce |   Nicaragua | 1:09.23 | +11.09s | 1 | 15 | 0.79 | 718 | 45. | 31.76s |  | 47.Ambica Iyengar |   India | 1:09.63 | +11.49s | 8 |   | 0.90 | 709 | 47. | 32.67s |  | 48.Simona Muccioli |   San Marino | 1:10.06 | +11.92s | 2 | 19 | 0.80 | 700 | 48. | 32.55s |   
| Heat 2 |   | time | gap | L | Ag | Rct | pts | Rk | 50m |  | 44.Cheok Mei Ma |   Macau | 1:08.92 | +10.78s | 4 | 14 | 0.93 | 725 | 44. | 31.85s |  | 46.Natasha Sara Georgeos |   Saint Lucia | 1:09.52 | +11.38s | 5 | 15 | 0.79 | 712 | 46. | 32.18s |  | 49.Krystle Babao |   Papua New Guinea | 1:13.29 | +15.15s | 7 |   | 0.87 | 631 | 49. | 34.72s |  | 50.Binta Zahra Diop |   Senegal | 1:13.88 | +15.74s | 6 | 13 | 0.84 | 619 | 50. | 33.28s |  | 52.Eva Donde |   Kenya | 1:17.20 | +19.06s | 2 | 13 | 0.87 | 556 | 52. | 32.52s |  | -. Elize Taua |   Samoa | DNS |   | 3 |   | - | - | -. |   |   
| Heat 1 |   | time | gap | L | Ag | Rct | pts | Rk | 50m |  | 27.Kyung-Hwa Park |   South Korea | 1:02.91 | +4.77s | 3 | 18 | 0.76 | 869 | 27. | 29.23s |  | 51.Jakie Wellman |   Zambia | 1:15.53 | +17.39s | 4 | 14 | 0.89 | 587 | 51. | 34.12s |  | 53.Aminath Rouya Hussain |   Maldives | 1:33.43 | +35.29s | 5 | 12 | 1.05 | 329 | 53. | 38.47s |   
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