The women's 100 metre freestyle competition of the swimming events at the 2011 World Aquatics Championships was held in July 2011; the heats and the semifinals were held on 28 July and the final on 29 July.

Records Prior to the competition, the existing world and championship records were as follows. Name Nation Time Location DateWorld record Championship recordBritta Steffen 52.07 Rome31 July 2009

Results

Heats 77 swimmers participated in 10 heats.

Rank Heat Lane Name Nationality Time Notes 1 8 4 Femke Heemskerk Q 2 8 6 Jeanette Ottesen Q 3 9 3 Ranomi Kromowidjojo Q 4 8 5 Dana Vollmer Q 5 10 3 Camille Muffat Q 6 8 3 Yolane Kukla Q 6 10 5 Alicia Coutts Q 6 10 6 Tang Yi Q 9 10 4 Francesca Halsall Q 10 9 5 Aleksandra Gerasimenya Q 11 8 8 Arianna Vanderpool-Wallace Q NR 12 9 4 Natalie Coughlin Q 13 8 2 Victoria Poon Q 14 8 7 Ida Marko-Varga Q 15 9 1 Gabriella Fagundez Q 16 9 6 Britta Steffen Q 17 10 2 Veronika Popova 18 10 7 Amy Smith 19 9 7 Wang Shijia 20 7 6 Hanna-Maria Seppälä 21 7 4 Chantal Vanlandegem 22 10 1 Pernille Blume 23 8 1 Daniela Schreiber 24 7 1 Theodora Drakou 25 9 8 Tatiana Lemos Barbosa 26 6 5 Karin Prinsloo 27 7 3 Hannah Wilson 28 7 5 Natasha Hind 29 6 4 Birgit Koschischek 30 9 2 Evelyn Verrasztó 31 6 3 Sara Isakovič 32 7 8 Nina Rangelova 33 6 2 Liliana Ibanez 34 6 6 Ragnheidur Ragnarsdottir 35 7 7 Natsuki Hasegawa 36 7 2 Miroslava Najdanovski 37 6 8 Katarina Listopadova 38 5 5 Natthanan Junkrajang 39 6 1 Amanda Lim 40 6 7 Katarina Filova 41 5 2 Chinyere Pigot 42 5 6 Nicole Horn 43 5 3 Megan Fonteno 44 5 4 Jasmine Al-Khaldi 45 4 5 Karen Torrez 46 4 4 Anna-Liza Mopio 47 5 8 Bayan Jumah 48 5 7 Kiera Aitken 49 5 1 Clelia Tini 50 4 3 Karen Schulz 51 4 2 Christine Briedenhann 52 4 6 Jessica Vieira 53 4 8 Branka Vranjes 54 4 7 Jade Ashleigh Howard 55 3 6 Britany van Lange 56 3 3 Judith Meauri 57 3 5 Monica Vasilyan 58 3 2 Zamantha Hoss 59 3 1 Ifiezegbe Gagbe 60 4 1 Fabiola Isabel Espinoza 61 3 4 Estellah Fils Rabetsara 62 2 4 Amelie Trinquier 63 3 7 Reshika Udugampola 64 2 3 Magdalena Moshi 65 2 6 Celeste Brown 66 2 2 Kuheilani Snow 67 2 1 Keesha Keane 68 3 8 Mareme Faye 69 2 8 Debra Daniel 70 1 5 Osisang Chilton 71 1 7 Antoinette Guedia Mouafo 72 2 7 Grace Kimball 73 1 2 Shreya Dhital 74 1 4 Katerina Izmailova 75 1 3 Sara Al Flaij 76 1 1 Elsie Uwamahoro 77 1 6 Sihame Ayouba Ali – 2 5 Gouri Kotecha DNS – 10 8 Federica Pellegrini DNS

Semifinals The semifinals were held at 18:02.

Semifinal 1 Rank Lane Name Nationality Time Notes 1 6 Francesca Halsall 53.48 Q 2 4 Jeanette Ottesen 53.88 Q 3 5 Dana Vollmer 54.05 Q 4 2 Arianna Vanderpool-Wallace 54.46 NR 5 7 Victoria Poon 54.82 6 3 Yolane Kukla 54.87 7 1 Gabriella Fagundez 54.92 8 8 Amy Smith 55.33

Semifinal 2 Rank Lane Name Nationality Time Notes 1 4 Femke Heemskerk 53.67 Q 2 6 Alicia Coutts 53.78 Q 3 5 Ranomi Kromowidjojo 53.94 Q 4 7 Natalie Coughlin 54.05 Q 5 2 Aleksandra Gerasimenya 54.26 Q 6 3 Camille Muffat 54.28 7 1 Ida Marko-Varga 54.78 8 8 Veronika Popova 54.82

Final The final was held at 18:02.

Rank Lane Name Nationality Time Notes 6 Jeanette Ottesen 53.45 8 Aleksandra Gerasimenya 53.45 2 Ranomi Kromowidjojo 53.66 4 4 Francesca Halsall 53.72 4 5 Femke Heemskerk 53.72 6 3 Alicia Coutts 53.81 7 7 Dana Vollmer 54.19 8 1 Natalie Coughlin 54.22

References

External links 2011 World Aquatics Championships: Women's 100 metre freestyle start list, from OmegaTiming.com; retrieved 2011-07-23.