2012 FINA World Swimming Championships (25 m) – Women's 100 metre backstroke
The women's 100 metre backstroke event at the 11th FINA World Swimming Championships took place 12 - 13 December 2012 at the Sinan Erdem Dome.Records
Prior to this competition, the existing world and championship records were as follows.
No new records were set during this competition.Results
Heats
67 swimmers participated in 7 heats.
| Rank | Heat | Lane | Name | Time | Notes |
| 1 | 6 | 5 | | 57.65 | Q |
| 2 | 7 | 4 | | 57.66 | Q |
| 3 | 5 | 8 | | 57.75 | Q |
| 4 | 7 | 3 | | 57.83 | Q |
| 5 | 5 | 5 | | 57.89 | Q |
| 6 | 5 | 3 | | 57.94 | Q |
| 7 | 7 | 2 | | 58.02 | Q |
| 8 | 7 | 5 | | 58.23 | Q |
| 9 | 5 | 4 | | 58.35 | Q |
| 10 | 6 | 3 | | 58.40 | Q |
| 11 | 5 | 9 | | 58.45 | Q |
| 12 | 6 | 4 | | 58.48 | Q |
| 13 | 7 | 6 | | 58.73 | Q |
| 14 | 5 | 1 | | 58.75 | Q |
| 15 | 6 | 6 | | 58.83 | Q |
| 16 | 5 | 6 | | 58.86 | Q |
| 17 | 5 | 7 | | 58.94 | NR |
| 18 | 6 | 2 | | 59.02 | |
| 19 | 4 | 4 | | 59.19 | NR |
| 20 | 5 | 0 | | 59.35 | |
| 21 | 6 | 8 | | 59.36 | |
| 22 | 6 | 7 | | 59.37 | |
| 23 | 7 | 9 | | 59.68 | |
| 24 | 4 | 3 | | 59.69 | |
| 25 | 7 | 1 | | 59.76 | |
| 26 | 7 | 0 | | 59.84 | |
| 27 | 6 | 1 | | 1:00.10 | |
| 28 | 6 | 0 | | 1:00.88 | |
| 29 | 7 | 8 | | 1:00.93 | |
| 30 | 6 | 9 | | 1:01.08 | |
| 30 | 7 | 7 | | 1:01.08 | |
| 32 | 4 | 6 | | 1:01.14 | |
| 33 | 1 | 8 | | 1:01.16 | |
| 34 | 4 | 5 | | 1:01.23 | |
| 35 | 4 | 1 | | 1:01.37 | |
| 36 | 4 | 0 | | 1:01.68 | |
| 37 | 4 | 2 | | 1:01.86 | |
| 38 | 4 | 7 | | 1:02.40 | |
| 39 | 4 | 8 | | 1:02.97 | |
| 40 | 3 | 5 | | 1:03.54 | NR |
| 41 | 5 | 2 | | 1:03.63 | |
| 42 | 3 | 7 | | 1:03.78 | |
| 43 | 3 | 2 | | 1:04.32 | |
| 44 | 3 | 9 | | 1:04.37 | |
| 45 | 3 | 6 | | 1:04.69 | |
| 46 | 3 | 4 | | 1:04.94 | |
| 47 | 4 | 9 | | 1:05.07 | |
| 48 | 2 | 3 | | 1:05.43 | |
| 49 | 2 | 5 | | 1:05.64 | NR |
| 50 | 3 | 1 | | 1:05.71 | |
| 51 | 3 | 0 | | 1:05.81 | |
| 52 | 3 | 3 | | 1:05.84 | |
| 53 | 2 | 4 | | 1:06.71 | |
| 54 | 3 | 8 | | 1:07.25 | |
| 55 | 2 | 6 | | 1:07.59 | |
| 56 | 2 | 2 | | 1:08.32 | |
| 57 | 2 | 8 | | 1:09.68 | |
| 58 | 2 | 7 | | 1:10.88 | |
| 59 | 2 | 1 | | 1:11.53 | |
| 60 | 2 | 0 | | 1:11.88 | |
| 61 | 1 | 7 | | 1:12.01 | |
| 62 | 2 | 9 | | 1:12.61 | |
| 63 | 1 | 4 | | 1:14.14 | |
| 64 | 1 | 2 | | 1:14.39 | |
| 65 | 1 | 6 | | 1:15.64 | |
| 66 | 1 | 3 | | 1:19.86 | |
| 67 | 1 | 5 | | 1:21.89 | |
| 1 | 0 | | | |
| 1 | 1 | | | |
Semifinals
16 swimmers participated in 2 heats.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 1 | 5 | Mie Nielsen | DEN | 57.15 | Q, NR |
| 2 | 2 | 2 | Rachel Goh | AUS | 57.39 | Q |
| 3 | 1 | 3 | Georgia Davies | GBR | 57.41 | Q |
| 4 | 2 | 4 | Simona Baumrtová | CZE | 57.62 | Q |
| 4 | 2 | 3 | Grace Loh | AUS | 57.62 | Q |
| 6 | 1 | 4 | Daryna Zevina | UKR | 57.66 | Q |
| 7 | 2 | 5 | Olivia Smoliga | USA | 57.74 | Q |
| 8 | 1 | 2 | Duane Da Rocha | ESP | 58.15 | Q |
| 9 | 2 | 1 | Zhou Yanxin | CHN | 58.21 | |
| 10 | 1 | 7 | Elizabeth Simmonds | GBR | 58.34 | |
| 11 | 1 | 6 | Kira Toussaint | NED | 58.36 | |
| 12 | 2 | 7 | Megan Romano | USA | 58.46 | |
| 13 | 2 | 6 | Arianna Barbieri | ITA | 58.50 | |
| 14 | 2 | 8 | Michelle Coleman | SWE | 58.65 | |
| 15 | 1 | 8 | Sharon van Rouwendaal | NED | 58.89 | |
| 16 | 1 | 1 | Marie Kamimura | JPN | 59.23 | |
Final
The final was held at 19:59.
| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | Olivia Smoliga | USA | 56.64 | |
| 4 | Mie Nielsen | DEN | 57.07 | NR |
| 6 | Simona Baumrtová | CZE | 57.18 | NR |
| 4 | 5 | Rachel Goh | AUS | 57.31 | |
| 5 | 3 | Georgia Davies | GBR | 57.32 | |
| 6 | 2 | Grace Loh | AUS | 57.34 | |
| 7 | 7 | Daryna Zevina | UKR | 57.67 | |
| 8 | 8 | Duane Da Rocha | ESP | 58.14 | |
