| Competition | 1978 World Aquatics Championships | 
|---|---|
| Venue | 
West-Berlin
 | 
| Held | — | 
| Status | Medal | 
| Competitors | 36 | 
| Countries | 24 | 
| Pos | Athlete(s) | Country | Preliminary Round | Final | ||
|---|---|---|---|---|---|---|
| 🥇 | Yuliya Bogdanova | 1:12.54 (5 h1)  | 
1:10.31 (1 F)  | 
|||
| 🥈 | Tracy Caulkins | 1:12.14 (2 h1)  | 
1:10.77 (2 F)  | 
|||
| 🥉 | Margaret Kelly | 1:11.73 (1 h1)  | 
1:11.99 (3 F)  | 
|||
| 4 | Kathy Treible | 1:12.44 (3 h1)  | 
1:12.38 (4 F)  | 
|||
| 5 | Eva-Marie Håkansson | 1:12.88 (7 h1)  | 
1:12.58 (5 F)  | 
|||
| 6 | Ramona Reinke | 1:12.48 (4 h1)  | 
1:12.62 (6 F)  | 
|||
| 7 | Dagmar Rehak | 1:12.56 (6 h1)  | 
1:12.71 (7 F)  | 
|||
| 8 | Annick de Susini | 1:13.03 (8 h1)  | 
1:13.78 (8 F)  | 
|||
| 9 | Angelika Knipping | 1:13.61 (9 h1)  | 
— | |||
| 10 | Marian Stuart | 1:13.74 (10 h1)  | 
— | |||
| 11 | Silvia Rinka | 1:13.76 (11 h1)  | 
— | |||
| 12 | Catherine Poirot | 1:13.96 (12 h1)  | 
— | |||
| 13 | Maritzka van der Linden | 1:14.00 (13 h1)  | 
— | |||
| 14 | Marina Koshevaya | 1:14.06 (14 h1)  | 
— | |||
| 15 | Anna Skolarczyk | 1:14.17 (15 h1)  | 
— | |||
| 16 | Debbie Rudd | 1:14.72 (16 h1)  | 
— | |||
| 17 | Robin Corsiglia | 1:14.74 (17 h1)  | 
— | |||
| 18 | Ingela Havås | 1:15.08 (18 h1)  | 
— | |||
| 19 | Irena Fleissnerová | 1:15.21 (19 h1)  | 
— | |||
| 20 | Manuela Dalla Valle | 1:15.24 (20 h1)  | 
— | |||
| 21 | Monica Corò | 1:15.80 (21 h1)  | 
— | |||
| 22 | Pel I-May | 1:16.10 (22 h1)  | 
— | |||
| 23 | Olga Estefanell | 1:16.23 (23 h1)  | 
— | |||
| 24 | Lisa Curry | 1:16.46 (24 h1)  | 
— | |||
| =25 | Elke Holtz | 1:16.89 (=25 h1)  | 
— | |||
| =25 | Masako Murakami | 1:16.89 (=25 h1)  | 
— | |||
| 27 | Alicia María Boscatto | 1:17.09 (27 h1)  | 
— | |||
| 28 | Antoinette de Groot | 1:17.32 (28 h1)  | 
— | |||
| 29 | Ilse Schoors | 1:17.89 (29 h1)  | 
— | |||
| 30 | Nanik Juliati Soewadji | 1:18.54 (30 h1)  | 
— | |||
| 31 | Vibeke Olsen | 1:18.66 (31 h1)  | 
— | |||
| 32 | Kazuyo Inaba | 1:18.68 (32 h1)  | 
— | |||
| 33 | Anita Sapardjiman | 1:19.31 (33 h1)  | 
— | |||
| 34 | Karin Miklautz | 1:19.63 (34 h1)  | 
— | |||
| 35 | Maja Rodić | 1:20.68 (35 h1)  | 
— | |||
| 36 | Sumatana Pingkatswan | 1:26.05 (36 h1)  | 
— | |||
| DNS | Susanne NielssonDNS | — (DNS h1)  | 
— | 
| Pos | Athlete(s) | Country | Mark | |
|---|---|---|---|---|
| 1 | Yuliya Bogdanova | 1:10.31 | ||
| 2 | Tracy Caulkins | 1:10.77 | ||
| 3 | Maggie Kelly-Hohmann | 1:11.99 | ||
| 4 | Kathy Treible | 1:12.38 | ||
| 5 | Eva-Marie Håkansson | 1:12.58 | ||
| 6 | Ramona Reinke | 1:12.62 | ||
| 7 | Dagmar Rehak | 1:12.71 | ||
| 8 | Annick de Susini | 1:13.78 |