# 2010 FINA World Swimming Championships (25 m) – Women's 50 metre backstroke

The Women's 50 Backstroke event at the 10th Short Course World Swimming Championships took place 18–19 December 2010 in Dubai, United Arab Emirates. The heats and semifinals were 18 December; the final was 19 December.
73 swimmers swam the event.

## Records

Prior to the competition, the existing world and championship records were as follows.
| | Name | Nation | Time | Location | Date |
| World record | Sanja Jovanović | Croatia | 25.70 | Istanbul | 12 December 2009 |
| Championship record | Sanja Jovanović | Croatia | 26.37 | Manchester | 13 April 2008 |
The following records were established during the competition:
| Date | Round | Name | Nation | Time | WR | CR |
| 18 December 2010 | Semifinals | Zhao Jing | China | 26.37 | | =CR |
| 19 December 2010 | Final | Zhao Jing | China | 26.27 | | CR |

## Results
### Heats

| Rank | Heat | Lane | Name | Time | Notes |
| 1 | 9 | 2 | Rachel Goh (AUS) | 26.73 | Q |
| 2 | 1 | 3 | Zhao Jing (CHN) | 26.99 | Q |
| 2 | 10 | 3 | Mercedes Peris (ESP) | 26.99 | Q |
| 4 | 9 | 4 | Aleksandra Gerasimenya (BLR) | 27.02 | Q |
| 5 | 10 | 5 | Anastasia Zuyeva (RUS) | 27.12 | Q |
| 6 | 10 | 4 | Gao Chang (CHN) | 27.26 | Q |
| 7 | 9 | 5 | Aleksandra Urbanczyk (POL) | 27.27 | Q |
| 8 | 8 | 6 | Elena Gemo (ITA) | 27.39 | Q |
| 8 | 8 | 1 | Chanelle van Wyk (RSA) | 27.39 | Q |
| 10 | 8 | 5 | Marieke Guehrer (AUS) | 27.45 | Q |
| 10 | 9 | 6 | Miyuki Takemura (JPN) | 27.45 | Q |
| 12 | 7 | 3 | Missy Franklin (USA) | 27.48 | Q |
| 13 | 9 | 3 | Simona Baumrtova (CZE) | 27.50 | Q |
| 14 | 10 | 2 | Laura Letrari (ITA) | 27.55 | Q |
| 15 | 8 | 2 | Fabiola Molina (BRA) | 27.62 | Q |
| 16 | 10 | 1 | Fabienne Nadarajah (AUT) | 27.73 | Q |
| 17 | 10 | 6 | Etiene Medeiros (BRA) | 27.78 | |
| 18 | 7 | 2 | Sinead Russell (CAN) | 27.90 | |
| 19 | 7 | 6 | Fernanda González (MEX) | 27.96 | |
| 20 | 9 | 8 | Theodora Drakou (GRE) | 27.98 | |
| 21 | 8 | 3 | Sanja Jovanovic (CRO) | 28.03 | |
| 22 | 9 | 7 | Kseniya Moskvina (RUS) | 28.09 | |
| 23 | 7 | 1 | Michelle Coleman (SWE) | 28.27 | |
| 24 | 10 | 7 | Katharina Stiberg (NOR) | 28.31 | |
| 25 | 8 | 8 | Ekaterina Avramova (BUL) | 28.33 | |
| 26 | 6 | 4 | Alana Kathryn Dillette (BAH) | 28.36 | |
| 27 | 5 | 6 | Madison White (USA) | 28.47 | |
| 28 | 7 | 8 | Hazal Sarikaya (TUR) | 28.57 | |
| 29 | 7 | 4 | Katarina Milly (SVK) | 28.60 | |
| 30 | 10 | 8 | Cecilia Bertoncello (ARG) | 28.61 | |
| 31 | 6 | 1 | Yulduz Kuchkarova (UZB) | 28.68 | |
| 32 | 6 | 2 | Jeserik Pinto (VEN) | 28.84 | |
| 33 | 6 | 8 | Sarah Rolko (LUX) | 28.89 | |
| 34 | 6 | 6 | Chen Ting (TPE) | 29.01 | |
| 34 | 9 | 1 | Alexianne Castel (FRA) | 29.01 | |
| 36 | 6 | 5 | Isabella Arcila (COL) | 29.03 | |
| 37 | 8 | 7 | Pernille Jessing Larsen (DEN) | 29.16 | |
| 38 | 6 | 3 | Kätlin Sepp (EST) | 29.19 | |
| 39 | 5 | 4 | Massie Milagros Carrillo (PER) | 29.48 | |
| 40 | 6 | 7 | Carmen Cianci (COL) | 29.62 | |
| 41 | 7 | 7 | Gizem Cam (TUR) | 29.67 | |
| 42 | 5 | 2 | Monica Ramirez (AND) | 30.08 | |
| 43 | 5 | 3 | Farida Osman (EGY) | 30.49 | |
| 44 | 5 | 1 | Nicola Muscat (MLT) | 30.56 | |
| 45 | 4 | 3 | Lara Butler (CAY) | 30.59 | |
| 46 | 4 | 4 | Sara Hyajna (JOR) | 30.74 | |
| 47 | 5 | 8 | Silvie Ketelaars (AHO) | 30.92 | |
| 48 | 5 | 7 | Vong Erica Man Wai (MAC) | 30.98 | |
| 49 | 4 | 5 | Iulia Olari (MDA) | 31.31 | |
| 50 | 4 | 7 | Karen Torrez (BOL) | 31.44 | NR |
| 51 | 3 | 3 | Jade Howard (ZAM) | 31.48 | |
| 52 | 4 | 2 | Dalia Torrez (NCA) | 31.82 | |
| 53 | 4 | 1 | Sylvia Brunlehner (KEN) | 32.01 | |
| 54 | 4 | 6 | Karen Vilorio (HON) | 32.14 | |
| 55 | 4 | 8 | Rachel Fortunato (GIB) | 32.43 | |
| 56 | 3 | 4 | Talisa Lanoe (KEN) | 32.63 | |
| 57 | 3 | 7 | Kiran Khan (PAK) | 32.72 | |
| 58 | 3 | 6 | Estellah Fils Rabetsara (MAD) | 32.76 | |
| 59 | 1 | 4 | Cheyenne Rova (FIJ) | 32.97 | |
| 60 | 3 | 5 | Lou Wai Sam (MAC) | 32.99 | |
| 61 | 2 | 7 | Debra Daniel (FSM) | 33.94 | |
| 62 | 3 | 1 | Mariam Foum (TAN) | 35.40 | |
| 63 | 2 | 4 | Mahnoor Maqsood (PAK) | 35.72 | |
| 64 | 2 | 5 | Osisang Chilton (PLW) | 35.85 | |
| 65 | 3 | 8 | Ann-Marie Hepler (MHL) | 36.04 | |
| 66 | 2 | 6 | Keanna Villagomez (NMI) | 36.72 | |
| 67 | 3 | 2 | Britany van Lange (GUY) | 36.91 | |
| 68 | 1 | 5 | Ophelia Swyne (GHA) | 36.99 | |
| 69 | 2 | 3 | Shaila Rana (NEP) | 37.43 | |
| 70 | 2 | 2 | Yanet Seyoum (ETH) | 37.77 | |
| - | 5 | 5 | Sharon van Rouwendaal (NED) | DNS | |
| - | 7 | 5 | Genevieve Saumur (CAN) | DNS | |
| - | 8 | 4 | Hinkelien Schreuder (NED) | DNS | |

### Semifinals
#### Semifinal 1

| Rank | Lane | Name | Time | Notes |
| 1 | 4 | Zhao Jing (CHN) | 26.37 | Q, =CR |
| 2 | 5 | Aleksandra Gerasimenya (BLR) | 26.77 | Q |
| 3 | 3 | Gao Chang (CHN) | 27.11 | Q |
| 3 | 2 | Marieke Guehrer (AUS) | 27.17 | |
| 5 | 6 | Elena Gemo (ITA) | 27.19 | |
| 6 | 8 | Fabienne Nadarajah (AUT) | 27.48 | |
| 6 | 7 | Missy Franklin (USA) | 27.49 | |
| 8 | 1 | Laura Letrari (ITA) | 27.54 | |

#### Semifinal 2

| Rank | Lane | Name | Time | Notes |
| 1 | 4 | Rachel Goh (AUS) | 26.68 | Q |
| 2 | 5 | Mercedes Peris (ESP) | 26.92 | Q |
| 3 | 3 | Anastasia Zuyeva (RUS) | 27.09 | Q |
| 4 | 7 | Miyuki Takemura (JPN) | 27.10 | Q |
| 5 | 8 | Fabiola Molina (BRA) | 27.13 | Q |
| 6 | 2 | Chanelle van Wyk (RSA) | 27.27 | |
| 7 | 1 | Simona Baumrtova (CZE) | 27.33 | |
| 8 | 6 | Aleksandra Urbańczyk (POL) | 27.65 | |

### Final

| Rank | Lane | Name | Time | Notes |
| | 4 | Zhao Jing (CHN) | 26.27 | CR |
| | 5 | Rachel Goh (AUS) | 26.54 | |
| | 6 | Mercedes Peris (ESP) | 26.80 | |
| 4 | 7 | Miyuki Takemura (JPN) | 26.91 | |
| 5 | 1 | Gao Chang (CHN) | 27.00 | |
| 6 | 2 | Anastasia Zuyeva (RUS) | 27.01 | |
| 7 | 3 | Aleksandra Gerasimenya (BLR) | 27.02 | |
| 8 | 8 | Fabiola Molina (BRA) | 27.67 | |