# Swimming at the 2009 World Aquatics Championships – Women's 200 metre butterfly

The women's 200 m butterfly at the 2009 World Championships took place on 29 July (heats and semifinals) and on the evening of 30 July (finals) at the Foro Italico in Rome, Italy.

## Records

Prior to this competition, the existing world and competition records were as follows:
| World record | Liu Zige (CHN) | 2:04.18 | Beijing, China | 14 August 2008 |
| Championship record | Otylia Jędrzejczak (POL) | 2:05.61 | Montreal, Canada | 28 July 2005 |
The following records were established during the competition:
| Date | Round | Name | Nationality | Time | Record |
| 29 July | Heat 4 | Mary DeScenza | United States | 2:04.14 | WR |
| 30 July | Final | Jessicah Schipper | Australia | 2:03.41 | WR |

## Results
### Heats

| Rank | Name | Nationality | Time | Heat | Lane | Notes |
| 1 | Mary DeScenza | United States | 2:04.14 | 4 | 3 | WR |
| 2 | Jessicah Schipper | Australia | 2:05.50 | 4 | 4 | |
| 3 | Katinka Hosszú | Hungary | 2:06.21 | 6 | 6 | NR |
| 4 | Samantha Hamill | Australia | 2:06.32 | 4 | 6 | |
| 5 | Annika Mehlhorn | Germany | 2:06.45 | 5 | 1 | NR |
| 6 | Aurore Mongel | France | 2:06.66 | 5 | 5 | |
| 7 | Audrey Lacroix | Canada | 2:06.67 | 5 | 2 | NR |
| 8 | Jiao Liuyang | China | 2:07.01 | 5 | 4 | |
| 9 | Yui Miyamoto | Japan | 2:07.13 | 5 | 6 | |
| 10 | Ellen Gandy | Great Britain | 2:07.33 | 6 | 4 | |
| 11 | Kathleen Hersey | United States | 2:07.34 | 6 | 3 | |
| 12 | Liu Zige | China | 2:07.55 | 5 | 3 | |
| 13 | Caterina Giacchetti | Italy | 2:07.84 | 6 | 5 | |
| 14 | Micha Kathrine Østergaard Jensen | Denmark | 2:08.54 | 6 | 2 | |
| 15 | Magali Rousseau | France | 2:08.57 | 6 | 7 | |
| 16 | Zsuzsanna Jakabos | Hungary | 2:08.63 | 1 | 8 | |
| 17 | Mirela Olczak | Poland | 2:08.72 | 6 | 0 | |
| 18 | Tanya Hunks | Canada | 2:09.42 | 4 | 8 | |
| 19 | Francesca Segat | Italy | 2:09.54 | 4 | 7 | |
| 20 | Joanna Maranhão | Brazil | 2:09.55 | 4 | 1 | SA |
| 21 | Yana Martynova | Russia | 2:09.80 | 4 | 0 | |
| 22 | Petra Granlund | Sweden | 2:09.87 | 5 | 7 | |
| 23 | Rita Medrano | Mexico | 2:10.29 | 5 | 9 | NR |
| 24 | Jessica Dickons | Great Britain | 2:10.32 | 4 | 2 | |
| 25 | Martina van Berkel | Switzerland | 2:11.41 | 5 | 0 | |
| 26 | Mireia Belmonte García | Spain | 2:11.55 | 4 | 5 | |
| 27 | Martina Granström | Sweden | 2:11.65 | 6 | 8 | |
| 28 | Katheryn Meaklim | South Africa | 2:11.75 | 6 | 1 | |
| 29 | Yang Chin-Kuei | Chinese Taipei | 2:12.90 | 3 | 4 | |
| 30 | Gráinne Murphy | Ireland | 2:13.66 | 3 | 3 | |
| 31 | Emilia Pikkarainen | Finland | 2:13.77 | 4 | 9 | |
| 32 | Tetyana Khala | Ukraine | 2:13.98 | 6 | 9 | |
| 33 | Yumisleisy Morales Mendoza | Cuba | 2:14.00 | 3 | 7 | NR |
| 34 | Paula Zukowska | Poland | 2:14.09 | 3 | 5 | |
| 35 | Barbora Závadová | Czech Republic | 2:14.83 | 3 | 8 | |
| 36 | Lynette Lim | Singapore | 2:15.82 | 2 | 2 | |
| 37 | Nina Dittrich | Austria | 2:15.95 | 5 | 8 | |
| 38 | Erica Cirila Totten | Philippines | 2:16.13 | 3 | 9 | |
| 39 | Yasemin Rosenberger | Turkey | 2:16.24 | 3 | 2 | |
| 40 | Kristina Bernice Lennox | Puerto Rico | 2:17.56 | 3 | 1 | |
| 41 | Maida Turnadzic | Bosnia and Herzegovina | 2:18.09 | 3 | 6 | |
| 42 | Eliana Barrios | Venezuela | 2:18.14 | 3 | 0 | |
| 43 | Simona Muccioli | San Marino | 2:19.84 | 2 | 4 | |
| 44 | Ting Sheng-Yo | Chinese Taipei | 2:21.05 | 1 | 4 | |
| 45 | Koh Ting Ting | Singapore | 2:21.31 | 2 | 5 | |
| 46 | Maria Coy | Guatemala | 2:21.37 | 2 | 3 | |
| 47 | Laura lucia Paz Chavez | Honduras | 2:21.47 | 2 | 9 | |
| 48 | Aiste Dobrovolskaite | Lithuania | 2:22.48 | 2 | 0 | |
| 49 | Karrakchou Lilia | Morocco | 2:23.32 | 2 | 8 | |
| 50 | Davina Mangion | Malta | 2:24.39 | 1 | 6 | |
| 51 | Vandita Dhariyal | India | 2:25.07 | 1 | 2 | |
| 52 | Pooja Raghava Alva | India | 2:25.08 | 1 | 3 | |
| 53 | Ana Euceda Gutierrez | Honduras | 2:25.51 | 1 | 5 | |
| 54 | Ramond Sherazad | Morocco | 2:26.69 | 2 | 1 | |
| 55 | Daniela Reyes Hinrichsen | Chile | 2:27.49 | 2 | 7 | |
| 56 | Miniruwani Samarakoon | Sri Lanka | 2:39.21 | 1 | 7 | |
| 57 | Tieri Erasito | Fiji | 2:45.20 | 1 | 1 | |

### Semifinals

| Rank | Name | Nationality | Time | Heat | Lane | Notes |
| 1 | Katinka Hosszú | Hungary | 2:04.27 | 2 | 5 | ER |
| 2 | Mary DeScenza | United States | 2:04.33 | 2 | 4 | |
| 3 | Jessicah Schipper | Australia | 2:04.87 | 1 | 4 | OC |
| 4 | Jiao Liuyang | China | 2:04.96 | 1 | 6 | |
| 5 | Aurore Mongel | France | 2:05.09 | 1 | 3 | NR |
| 6 | Liu Zige | China | 2:05.29 | 1 | 7 | |
| 7 | Samantha Hamill | Australia | 2:05.99 | 1 | 5 | |
| 8 | Audrey Lacroix | Canada | 2:06.85 | 2 | 6 | |
| 9 | Kathleen Hersey | United States | 2:06.89 | 2 | 7 | |
| 10 | Annika Mehlhorn | Germany | 2:07.43 | 2 | 3 | |
| 11 | Micha Kathrine Østergaard Jensen | Denmark | 2:07.44 | 1 | 1 | NR |
| 12 | Caterina Giacchetti | Italy | 2:07.59 | 2 | 1 | |
| 13 | Yui Miyamoto | Japan | 2:08.13 | 2 | 2 | |
| 14 | Zsuzsanna Jakabos | Hungary | 2:08.34 | 1 | 8 | |
| 15 | Ellen Gandy | Great Britain | 2:08.55 | 1 | 2 | |
| 16 | Magali Rousseau | France | 2:08.94 | 2 | 8 | |

### Finals

| Rank | Name | Nationality | Time | Lane | Notes |
| | Jessicah Schipper | Australia | 2:03.41 | 3 | WR |
| | Liu Zige | China | 2:03.90 | 7 | AS |
| | Katinka Hosszú | Hungary | 2:04.28 | 4 | |
| 4 | Mary Descenza | United States | 2:04.41 | 5 | |
| 5 | Jiao Liuyang | China | 2:04.50 | 6 | |
| 6 | Aurore Mongel | France | 2:05.48 | 2 | |
| 7 | Audrey Lacroix | Canada | 2:05.95 | 8 | NR |
| 8 | Samantha Hamill | Australia | 2:06.11 | 1 | |