| Competition | 1978 World Aquatics Championships | 
|---|---|
| Venue | West-Berlin | 
| Held | — | 
| Status | Medal | 
| Competitors | 30 | 
| Countries | 22 | 
| Pos | Athlete(s) | Country | Preliminary Round | Final | ||
|---|---|---|---|---|---|---|
| 🥇 | Nick Nevid | 2:22.34 (8 h1) | 2:18.37 (1 F) | |||
| 🥈 | Arsens Miskarovs | 2:22.14 (7 h1) | 2:18.42 (2 F) | |||
| 🥉 | Walter Kusch | 2:21.30 (3 h1) | 2:20.16 (3 F) | |||
| 4 | Duncan Goodhew | 2:21.69 (5 h1) | 2:20.49 (4 F) | |||
| 5 | Robertas Žulpa | 2:20.78 (2 h1) | 2:20.53 (5 F) | |||
| 6 | Albán Vermes | 2:22.08 (6 h1) | 2:20.81 (6 F) | |||
| 7 | Graham Smith | 2:21.43 (4 h1) | 2:20.91 (7 F) | |||
| 8 | Jeff Freeman | 2:20.63 (1 h1) | 2:22.13 (8 F) | |||
| 9 | Shigehiro Takahashi | 2:22.39 (9 h1) | — | |||
| 10 | Jürgen Bruhn | 2:22.59 (10 h1) | — | |||
| 11 | Greg Wurzbach | 2:23.79 (11 h1) | — | |||
| 12 | Hiroshi Kabatani | 2:24.15 (12 h1) | — | |||
| 13 | Glen Christiansen | 2:24.76 (13 h1) | — | |||
| 14 | Olivier Borios | 2:26.48 (14 h1) | — | |||
| 15 | Steffen Kriechbaum | 2:26.90 (15 h1) | — | |||
| 16 | Gregor Arnicke | 2:27.41 (16 h1) | — | |||
| 17 | Pablo Restrepo | 2:27.70 (17 h1) | — | |||
| 18 | Lindsay Spencer | 2:28.30 (18 h1) | — | |||
| 19 | Paul Naisby | 2:28.98 (19 h1) | — | |||
| 20 | Giorgio Lalle | 2:29.00 (20 h1) | — | |||
| 21 | Falk Becker | 2:29.50 (21 h1) | — | |||
| 22 | Ron Kehrmann | 2:30.96 (22 h1) | — | |||
| 23 | Miguel Santiesteban | 2:30.97 (23 h1) | — | |||
| 24 | Kun Hantiyo Prastiasto | 2:31.76 (24 h1) | — | |||
| 25 | Andrey Aguilar | 2:32.07 (25 h1) | — | |||
| 26 | Ronald Hond | 2:32.51 (26 h1) | — | |||
| 27 | Luis Bajaña | 2:33.13 (27 h1) | — | |||
| 28 | Helmut Levy | 2:33.78 (28 h1) | — | |||
| 29 | Roberto Neiger | 2:33.93 (29 h1) | — | |||
| 30 | Hédi Belhassen | 2:43.70 (30 h1) | — | |||
| DNS | Orlando CatinchiDNS | — (DNS h1) | — | 
| Pos | Athlete(s) | Country | Mark | |
|---|---|---|---|---|
| 1 | Jeff Freeman | 2:20.63 | ||
| 2 | Robertas Žulpa | 2:20.78 | ||
| 3 | Walter Kusch | 2:21.30 | ||
| 4 | Graham Smith | 2:21.43 | ||
| 5 | Duncan Goodhew | 2:21.69 | ||
| 6 | Albán Vermes | 2:22.08 | ||
| 7 | Arsens Miskarovs | 2:22.14 | ||
| 8 | Nick Nevid | 2:22.34 | ||
| 9 | Shigehiro Takahashi | 2:22.39 | ||
| 10 | Jürgen Bruhn | 2:22.59 | ||
| 11 | Greg Wurzbach | 2:23.79 | ||
| 12 | Hiroshi Kabatani | 2:24.15 | ||
| 13 | Glen Christiansen | 2:24.76 | ||
| 14 | Olivier Borios | 2:26.48 | ||
| 15 | Steffen Kriechbaum | 2:26.90 | ||
| 16 | Gregor Arnicke | 2:27.41 | ||
| 17 | Pablo Restrepo | 2:27.70 | ||
| 18 | Lindsay Spencer | 2:28.30 | ||
| 19 | Paul Naisby | 2:28.98 | ||
| 20 | Giorgio Lalle | 2:29.00 | ||
| 21 | Falk Becker | 2:29.50 | ||
| 22 | Ron Kehrmann | 2:30.96 | ||
| 23 | Miguel Santiesteban | 2:30.97 | ||
| 24 | Kun Hantiyo Prastiasto | 2:31.76 | ||
| 25 | Andrey Aguilar | 2:32.07 | ||
| 26 | Ronald Hond | 2:32.51 | ||
| 27 | Luis Bajaña | 2:33.13 | ||
| 28 | Helmut Levy | 2:33.78 | ||
| 29 | Roberto Neiger | 2:33.93 | ||
| 30 | Hédi Belhassen | 2:43.70 | ||
| DNS | Orlando CatinchiDNS | — | 
| Pos | Athlete(s) | Country | Mark | |
|---|---|---|---|---|
| 1 | Nick Nevid | 2:18.37 | ||
| 2 | Arsens Miskarovs | 2:18.42 | ||
| 3 | Walter Kusch | 2:20.16 | ||
| 4 | Duncan Goodhew | 2:20.49 | ||
| 5 | Robertas Žulpa | 2:20.53 | ||
| 6 | Albán Vermes | 2:20.81 | ||
| 7 | Graham Smith | 2:20.91 | ||
| 8 | Jeff Freeman | 2:22.13 |