|  Final 19:50 EST | time | gap | L | React. | 50m | 100m | 150m |  | 1. Kierra Smith |  CAN | 2:24.38 | PR | 4 | 0.88 | 33.04s | 2. | 1:09.68 | 1. | 1:47.12 | 2. |  | 2. Martha Mccabe |  CAN | 2:24.51 | 0.13 | 3 | 0.72 | 33.23s | 3. | 1:09.97 | 2. | 1:46.98 | 1. |  | 3. Annie Lazor |  USA | 2:26.23 | 1.85 | 5 | 0.76 | 33.48s | 4. | 1:10.23 | 3. | 1:47.58 | 3. |  | 4. Alia Atkinson |  JAM | 2:27.15 | 2.77 | 7 | 0.70 | 32.94s | 1. | 1:10.84 | 4. | 1:48.79 | 4. |  | 5. Byanca Rodriguez |  MEX | 2:28.87 | 4.49 | 2 | 0.76 | 33.78s | 6. | 1:11.88 | 6. | 1:49.86 | 6. |  | 6. Julia Sebastian |  ARG | 2:29.45 | 5.07 | 1 | 0.74 | 33.56s | 5. | 1:11.22 | 5. | 1:49.70 | 5. |  | 7. Esther Gonzalez |  MEX | 2:29.83 | 5.45 | 6 | 0.72 | 34.48s | 8. | 1:12.57 | 7. | 1:51.11 | 7. |  | 8. Pamela Souza |  BRA | 2:32.41 | 8.03 | 8 | 0.77 | 34.36s | 7. | 1:12.66 | 8. | 1:51.83 | 8. |   
| World Record: Petra-R. Moeller (DEN) 2:19.11, Barcelona (ESP), 01.08.2013. |  | Pan American Games Record: Caitlin Leverenz (USA) 2:25.62, Rio de Janeiro (BRA), 22.07.2007. |  | Qualification times. Standard A: 2:36.89, Standard B: 2:46.30. |   
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| Final B 19:43 EST | time | gap | L | React. | 50m | 100m | 150m |  | 9. Macarena Ceballos |  ARG | 2:30.76 |   | 4 | 0.70 | 33.48s | 1. | 1:10.42 | 1. | 1:49.42 | 1. |  | 10.Meghan Small |  USA | 2:31.35 | 0.59 | 5 | 0.79 | 34.52s | 4. | 1:13.22 | 4. | 1:52.17 | 2. |  | 11.Beatriz Travalon |  BRA | 2:33.21 | 2.45 | 3 | 0.74 | 34.46s | 3. | 1:12.93 | 3. | 1:52.62 | 3. |  | 12.Mercedes Toledo |  VEN | 2:33.57 | 2.81 | 6 | 0.78 | 34.39s | 2. | 1:12.91 | 2. | 1:52.63 | 4. |  | 13.Paula Tamashiro |  PER | 2:41.94 | 11.18 | 1 | 0.80 | 36.46s | 7. | 1:18.65 | 7. | 2:01.01 | 6. |  | 14.Laura Morley |  BAH | 2:42.99 | 12.23 | 2 | 0.76 | 35.94s | 5. | 1:16.56 | 5. | 1:59.40 | 5. |  | 15.Lisa Blackburn |  BER | 2:46.32 | 15.56 | 7 | 0.75 | 36.29s | 6. | 1:17.94 | 6. | 2:01.27 | 7. |   
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  Heats - Wednesday 15.07 10:30 |  | First 8 to Final. Next 8 to Final B.  |   
| Ranking | time | gap | L | React. | 50m | 100m | 150m | .Heat |  | 1. Kierra Smith |  CAN | 2:25.41 | PR | 4 | 0.85 | 33.56s | 2. | 1:10.44 | 1. | 1:47.84 | 1. | Heat 2 |  | 2. Annie Lazor |  USA | 2:26.37 | 0.96 | 3 | 0.75 | 33.60s | 3. | 1:10.88 | 2. | 1:48.28 | 2. | Heat 2 |  | 3. Martha Mccabe |  CAN | 2:27.47 | 2.06 | 4 | 0.77 | 34.17s | 2. | 1:11.04 | 1. | 1:49.01 | 1. | Heat 1 |  | 4. Esther Gonzalez |  MEX | 2:28.15 | 2.74 | 2 | 0.75 | 34.17s | 2. | 1:11.79 | 4. | 1:49.60 | 2. | Heat 1 |  | 5. Byanca Rodriguez |  MEX | 2:28.73 | 3.32 | 3 | 0.80 | 33.52s | 1. | 1:11.64 | 3. | 1:49.62 | 3. | Heat 1 |  | 6. Alia Atkinson |  JAM | 2:28.86 | 3.45 | 5 | 0.70 | 33.14s | 1. | 1:11.07 | 3. | 1:49.21 | 3. | Heat 2 |  | 7. Julia Sebastian |  ARG | 2:29.00 | 3.59 | 5 | 0.75 | 34.35s | 4. | 1:11.31 | 2. | 1:50.30 | 4. | Heat 1 |  | 8. Pamela Souza |  BRA | 2:31.14 | 5.73 | 6 | 0.71 | 35.14s | 6. | 1:13.32 | 6. | 1:51.70 | 5. | Heat 1 |  |  to Final B |  | 9. Macarena Ceballos |  ARG | 2:31.35 | 5.94 | 6 | 0.71 | 33.61s | 4. | 1:11.28 | 4. | 1:50.88 | 4. | Heat 2 |  | 10.Meghan Small |  USA | 2:32.40 | 6.99 | 2 | 0.87 | 34.95s | 6. | 1:13.60 | 6. | 1:52.38 | 5. | Heat 2 |  | 11.Beatriz Travalon |  BRA | 2:32.73 | 7.32 | 7 | 0.80 | 34.41s | 5. | 1:12.75 | 5. | 1:52.01 | 6. | Heat 1 |  | 12.Mercedes Toledo |  VEN | 2:34.43 | 9.02 | 7 | 0.74 | 34.45s | 5. | 1:12.97 | 5. | 1:53.21 | 6. | Heat 2 |  | 13.Laura Morley |  BAH | 2:40.28 | 14.87 | 1 | 0.78 | 35.75s | 7. | 1:15.99 | 7. | 1:57.50 | 7. | Heat 2 |  | 14.Lisa Blackburn |  BER | 2:42.82 | 17.41 | 8 | 0.75 | 35.95s | 7. | 1:16.26 | 7. | 1:58.91 | 7. | Heat 1 |  | 15.Paula Tamashiro |  PER | 2:43.73 | 18.32 | 1 | 0.81 | 35.99s | 8. | 1:17.78 | 8. | 2:01.15 | 8. | Heat 1 |  | 16.Izzy Joachim |  VIN | 2:58.72 | 33.31 | 8 | 0.82 | 36.31s | 8. | 1:19.22 | 8. | 2:07.76 | 8. | Heat 2 |   
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| Swimmer | Q. time | Birth |  | Kierra Smith |  CAN | 2:23.32 | 01 FEB 1994 |  | Martha Mccabe |  CAN | 2:24.53 | 04 AUG 1989 |  | Alia Atkinson |  JAM | 2:25.48 | 11 DEC 1988 |  | Julia Sebastian |  ARG | 2:28.25 | 23 NOV 1993 |  | Annie Lazor |  USA | 2:28.91 | 17 AUG 1994 |  | Byanca Rodriguez |  MEX | 2:29.37 | 13 SEP 1994 |  | Macarena Ceballos |  ARG | 2:29.95 | 12 JAN 1995 |  | Pamela Souza |  BRA | 2:30.31 | 24 JAN 1994 |  | Meghan Small |  USA | 2:31.70 | 25 MAY 1998 |  | Esther Gonzalez |  MEX | 2:32.20 | 26 JUN 1995 |  | Mercedes Toledo |  VEN | 2:32.95 | 17 MAY 1989 |  | Beatriz Travalon |  BRA | 2:33.39 | 19 JUL 1993 |  | Laura Morley |  BAH | 2:36.42 | 01 OCT 1996 |  |  Standard A: 2:36.89 |  | Paula Tamashiro |  PER | 2:42.17 | 29 AUG 2000 |  | Izzy Joachim |  VIN | 2:45.67 | 11 MAY 2000 |  |  Standard B: 2:46.30 |  | Lisa Blackburn |  BER | 2:47.01 | 19 NOV 1971 |   
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