| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 4 | Birkett William (2002)Stipendium Hungaricum | 00:51.32 | - | 667 | |
50m00:24.67 R:0.74 100m00:51.3200:26.65 -
| ||||||
| 2 | 3 | Alabdallat Adnan Omar (2007)Stipendium Hungaricum | 00:51.35 | 00:00.03 | 665 | |
50m00:25.01 R:0.71 100m00:51.3500:26.34 -
| ||||||
| 3 | 5 | Ganzorigt Sugar (2005)Stipendium Hungaricum | 00:55.81 | 00:04.49 | 518 | |
50m00:27.04 R:0.67 100m00:55.8100:28.77 -
| ||||||
| 4 | 6 | Ng Chiu Hing Ning Chadd (2006)Stipendium Hungaricum | 00:59.20 | 00:07.88 | 434 | |
50m00:28.45 R:0.71 100m00:59.2000:30.75 -
| ||||||