Swimming at the 2003 Pan American Games – Women's 100 metre backstroke
# Swimming at the 2003 Pan American Games – Women's 100 metre backstroke

The Women's 100m Backstroke event at the 2003 Pan American Games took place on August 14, 2003 (Day 13 of the Games).

At this race, Gisela Morales won the first medal of her country in swimming at Pan American Games at all times.

## Medalists

| Gold | Diana MacManus United States |
| - | - |
| Silver | Courtney Shealy United States |
| Bronze | Gisela Morales Guatemala |

## Records

| World Record | Natalie Coughlin (USA) | 59.58 | 2002-08-13 | Fort Lauderdale, Florida |
| - | - | - | - | - |
| Pan Am Record | Barbara Bedford (USA) | 1:01.71 | 1995-03-14 | Mar del Plata, Argentina |

## Results

| Place | Swimmer | Heats | Heats | Final |
| - | - | - | - | - |
| Place | Swimmer | Time | Rank | Time |
| 1 | Diana MacManus (USA) | 1:04.28 | 2 | 1:02.50 |
| 2 | Courtney Shealy (USA) | 1:02.79 | 1 | 1:02.74 |
| 3 | Gisela Morales (GUA) | 1:04.50 | 3 | 1:04.56 |
| 4 | Danielle de Alba (MEX) | 1:04.79 | 4 | 1:04.91 |
| 5 | Serrana Fernández (URU) | 1:05.42 | 6 | 1:05.15 |
| 6 | Kiera Aitken (BER) | 1:04.98 | 5 | 1:06.03 |
| 7 | Paula Baracho (BRA) | 1:06.27 | 7 | 1:06.22 |
| 8 | Talita Ribeiro (BRA) | 1:06.68 | 8 | 1:06.39 |
| 9 | Emily Busquets (PUR) | 1:06.99 | 9 | 1:06.61 |
| 10 | Valeria Silva (PER) | 1:07.83 | 12 | 1:07.43 |
| 11 | Gretchen Gotay (PUR) | 1:07.95 | 13 | 1:08.15 |
| 12 | Silvie Ketelaars (AHO) | 1:09.18 | 15 | 1:08.76 |
| 13 | Fatima Valderrama (PER) | 1:07.74 | 11 | 1:08.80 |
| 14 | Marianella Marín (CRC) | 1:09.24 | 16 | 1:08.98 |
| 15 | Ayeisha Collymore (TRI) | 1:09.39 | 17 | 1:09.66 |
| 16 | Diana Caceres (ECU) | 1:09.75 | 18 | 1:10.39 |
| -- | Carolina Rivera (VEN) | 1:07.20 | 10 | scratched |
| -- | María Costanzo (PAR) | 1:08.49 | 14 | scratched |
| 19 | Laura Rodríguez (DOM) | 1:10.05 | 19 |
| 20 | Alana Dilette (BAH) | 1:10.07 | 20 |
