Final 10:51 | time | gap | L | Reac | 50m | 1. Kaylee McKewon | Australia | 57.47s | OR | 3 | 0.56 | 28.20s3. | 2. Kylie Masse | Canada | 57.72s | 0.25s | 5 | 0.53 | 27.91s5. | 3. Regan Smith | United States | 58.05s | 0.58s | 4 | 0.59 | 28.24s4. | 4. Rhyan Elizabeth White | United States | 58.43s | 0.96s | 6 | 0.61 | 28.12s6. | 5. Emily Seebohm | Australia | 58.45s | 0.98s | 7 | 0.64 | 28.58s7. | 6. Kathleen Dawson | Great Britain | 58.70s | 1.23s | 2 | 0.62 | 28.40s2. | 7. Kira Toussaint | Netherlands | 59.11s | 1.64s | 1 | 0.51 | 28.39s1. | 8. Anastasia Gorbenko | Israel | 59.53s | 2.06s | 8 | 0.67 | 29.26s8. |
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World Record: Kaylee McKewon, Australia 57.45s Adelaide, SA, Australia 13th June 2021 | Olympic Record: Regan Smith, United States 57.86s Tokyo, Japan 26th July 2021 |
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| Best 8 times advanced to Final. |
Semi 1 | | time | gap | L | pts | 50m | age | 1. Regan Smith | United States | 57.86s | OR | 4 | 985 | 28.32s | 19 | 4. Rhyan White | United States | 58.46s | +0.60 | 3 | 955 | 28.31s | 21 | 5. Kathleen Dawson | Great Britain | 58.56s | +0.70 | 5 | 950 | 28.29s | 23 | 8. Anastasia Gorbenko | Israel | 59.30s | +1.44 | 7 | 915 | 29.46s | 17 | 10.Mariia Kameneva | ROC | 59.49s | +1.63 | 2 | 906 | 29.02s | 22 | 11.Margherita Panziera | Italy | 59.75s | +1.89 | 6 | 894 | 29.11s | 25 | 13.Anna Konishi | Japan | 1:00.07 | +2.21 | 8 | 880 | 29.43s | 25 | 14.Cassie Wild | Great Britain | 1:00.20 | +2.34 | 1 | 874 | 29.25s | 21 |
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Semi 2 | | time | gap | L | pts | 50m | age | 2. Kylie Masse | Canada | 58.09s | +0.23 | 5 | 973 | 28.35s | 25 | 3. Kaylee Mckeown | Australia | 58.11s | +0.25 | 4 | 972 | 28.66s | 20 | 6. Emily Seebohm | Australia | 58.59s | +0.73 | 3 | 948 | 28.73s | 29 | 7. Kira Toussaint | Netherlands | 59.09s | +1.23 | 6 | 924 | 28.58s | 27 | 9. Taylor Ruck | Canada | 59.45s | +1.59 | 7 | 908 | 28.61s | 21 | 12.Xuwei Peng | China | 59.98s | +2.12 | 2 | 884 | 29.16s | 18 | 14.Anastasiia Fesikova | ROC | 1:00.20 | +2.34 | 1 | 874 | 29.23s | 31 | 16.Maaike De Waard | Netherlands | 1:00.49 | +2.63 | 8 | 862 | 28.72s | 24 |
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Heat 6 | | time | gap | L | pts | 50m | age | 1. Kaylee McKeown | Australia | 57.88s | OR | 4 | 984 | 28.24s | 20 | 4. Kathleen Dawson | Great Britain | 58.69s | +0.81 | 5 | 943 | 28.53s | 23 | 5. Emily Seebohm | Australia | 58.86s | +0.98 | 3 | 935 | 28.78s | 29 | 14.Cassie Wild | Great Britain | 59.99s | +2.11 | 2 | 883 | 29.45s | 21 | 18.Ingeborg Loyning | Norway | 1:00.07 | +2.19 | 8 | 880 | 29.52s | 20 | 22.Jie Chen | China | 1:00.63 | +2.75 | 7 | 856 | 29.06s | 26 | 24.Laura Riedemann | Germany | 1:00.81 | +2.93 | 1 | 848 | 29.36s | 23 | -. Anastasiya Shkurdai | Belarus | DNS | - | 6 | - | | 18 |
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Heat 5 | | time | gap | L | pts | 50m | age | 2. Regan Smith | United States | 57.96s | +0.08s OR | 4 | 979 | 28.36s | 19 | 6. Rhyan White | United States | 59.02s | +1.14 | 5 | 928 | 28.61s | 21 | 7. Kira Toussaint | Netherlands | 59.21s | +1.33 | 3 | 919 | 28.75s | 27 | 9. Xuwei Peng | China | 59.78s | +1.90 | 1 | 893 | 29.08s | 18 | 10.Mariia Kameneva | ROC | 59.88s | +2.00 | 6 | 888 | 29.12s | 22 | 15.Maaike De Waard | Netherlands | 1:00.03 | +2.15 | 7 | 882 | 28.81s | 24 | 18.Katalin Burian | Hungary | 1:00.07 | +2.19 | 8 | 880 | 29.17s | 26 | 21.Michelle Coleman | Sweden | 1:00.54 | +2.66 | 2 | 859 | 28.56s | 27 |
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Heat 4 | | time | gap | L | pts | 50m | age | 3. Kylie Masse | Canada | 58.17s | +0.29s OR | 4 | 969 | 28.19s | 25 | 8. Margherita Panziera | Italy | 59.74s | +1.86 | 3 | 894 | 29.21s | 25 | 11.Taylor Ruck | Canada | 59.89s | +2.01 | 5 | 888 | 28.94s | 21 | 12.Anastasia Gorbenko | Israel | 59.90s | +2.02 | 7 | 887 | 28.94s | 17 | 13.Anastasiia Fesikova | ROC | 59.92s | +2.04 | 6 | 886 | 29.12s | 31 | 16.Anna Konishi | Japan | 1:00.04 | +2.16 | 1 | 881 | 29.35s | 25 | 20.Eunji Lee | South Korea | 1:00.14 | +2.26 | 8 | 877 | 29.00s | 15 | 27.Simona Kubova | Czechia | 1:01.35 | +3.47 | 2 | 826 | 29.41s | 29 |
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Heat 3 | | time | gap | L | pts | 50m | age | 17.Mimosa Jallow | Finland | 1:00.06 | +2.18 | 2 | 880 | 28.98s | 27 | 23.Beryl Gastaldello | France | 1:00.69 | +2.81 | 5 | 853 | 29.17s | 26 | 25.Danielle Hill | Ireland | 1:00.86 | +2.98 | 3 | 846 | 29.47s | 21 | 26.Hoi Shun Stephanie Au | Hong Kong | 1:01.07 | +3.19 | 6 | 837 | 29.38s | 29 | 29.Lena Grabowski | Austria | 1:01.80 | +3.92 | 8 | 808 | 29.49s | 18 | 30.Daryna Zevina | Ukraine | 1:01.97 | +4.09 | 1 | 801 | 30.08s | 26 | 32.Isabella Arcila Hurtado | Colombia | 1:02.28 | +4.40 | 7 | 789 | 29.64s | 27 | -. Louise Hansson | Sweden | DNS | - | 4 | - | | 24 |
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Heat 2 | | time | gap | L | pts | 50m | age | 28.Tatiana Salcutan | Moldova | 1:01.59 | +3.71 | 5 | 816 | 29.76s | 20 | 31.Mckenna De Bever | Peru | 1:02.09 | +4.21 | 7 | 797 | 30.24s | 25 | 33.Ali Galyer | New Zealand | 1:02.65 | +4.77 | 4 | 775 | 30.65s | 23 | 35.Krystal Lara | Dominicana | 1:03.07 | +5.19 | 6 | 760 | 29.98s | 23 | 36.Celina Marquez | El Salvador | 1:03.75 | +5.87 | 3 | 736 | 30.70s | 22 | 37.Danielle Titus | Barbados | 1:04.53 | +6.65 | 1 | 710 | 31.25s | 18 | 38.Felicity Passon | Seychelles | 1:04.66 | +6.78 | 2 | 705 | 30.59s | 22 | 40.Diana Nazarova | Kazakhstan | 1:06.99 | +9.11 | 8 | 634 | 31.64s | 21 |
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Heat 1 | | time | gap | L | pts | 50m | age | 34.Donata Katai | Zimbabwe | 1:02.73 | +4.85 | 5 | 772 | 30.17s | 17 | 39.Maana Patel Patel | India | 1:05.20 | +7.32 | 4 | 688 | 31.01s | 21 | 41.Kimberly Ince | Grenada | 1:10.24 | +12.36 | 3 | 550 | 32.59s | 16 |
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Final Ranking | Heats | Semi | Final | 1. Kaylee McKewon | Australia | 57.88s1. | 58.11s3. | 57.47s | 2. Kylie Masse | Canada | 58.17s3. | 58.09s2. | 57.72s | 3. Regan Smith | United States | 57.96s2. | 57.86s1. | 58.05s | 4. Rhyan Elizabeth White | United States | 59.02s6. | 58.46s4. | 58.43s | 5. Emily Seebohm | Australia | 58.86s5. | 58.59s6. | 58.45s | 6. Kathleen Dawson | Great Britain | 58.69s4. | 58.56s5. | 58.70s | 7. Kira Toussaint | Netherlands | 59.21s7. | 59.09s7. | 59.11s | 8. Anastasia Gorbenko | Israel | 59.90s12. | 59.30s8. | 59.53s | 9. Taylor Ruck | Canada | 59.89s11. | 59.45s9. | | 10.Mariia Kameneva | ROC | 59.88s10. | 59.49s10. | | 11.Margherita Panziera | Italy | 59.74s8. | 59.75s11. | | 12.Xuwei Peng | China | 59.78s9. | 59.98s12. | | 13.Anna Konishi | Japan | 1:00.0416. | 1:00.0713. | | 14.Cassie Wild | Great Britain | 59.99s14. | 1:00.2014. | | 14.Anastasiia Fesikova | ROC | 59.92s13. | 1:00.2015. | | 16.Maaike de Waard | Netherlands | 1:00.0315. | 1:00.4916. | | 17.Mimosa Jallow | Finland | 1:00.06 | | | 18.Katalin Burian | Hungary | 1:00.07 | | | 18.Ingeborg Loeyning | Norway | 1:00.07 | | | 20.Eunji Lee | South Korea | 1:00.14 | | | 21.Michelle Coleman | Sweden | 1:00.54 | | | 22.Jie Chen | China | 1:00.63 | | | 23.Beryl Gastaldello | France | 1:00.69 | | | 24.Laura Riedemann | Germany | 1:00.81 | | | 25.Danielle Hill | Ireland | 1:00.86 | | | 26.Hoi Shun Stephanie Au | Hong Kong | 1:01.07 | | | 27.Simona Kubova | Czechia | 1:01.35 | | | 28.Tatiana Salcutan | Moldova | 1:01.59 | | | 29.Lena Grabowski | Austria | 1:01.80 | | | 30.Daryna Zevina | Ukraine | 1:01.97 | | | 31.McKenna de Bever Elliot | Peru | 1:02.09 | | | 32.Isabella Arcila Hurtado | Colombia | 1:02.28 | | | 33.Ali Galyer | New Zealand | 1:02.65 | | | 34.Donata Katai | Zimbabwe | 1:02.73 | | | 35.Krystal Lara | Dominicana | 1:03.07 | | | 36.Celina Marquez | El Salvador | 1:03.75 | | | 37.Danielle Titus | Barbados | 1:04.53 | | | 38.Felicity Passon | Seychelles | 1:04.66 | | | 39.Maana Patel Patel | India | 1:05.20 | | | 40.Diana Nazarova | Kazakhstan | 1:06.99 | | | 41.Kimberly Ince | Grenada | 1:10.24 | | | 42.Louise Hansson | Sweden | DNS | | | 42.Anastasiya Shkurdai | Belarus | DNS | | |
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Total eligible to participate -- swimmers (started --) |
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