Men Open 400m Freestyle - Heats (Declared Winners)
Full Results
| Place | Name | AaD | Club | | Time | | | | |
| 1. | Matthew Baker | 16 | West Suffolk | | 3:59.29 | | | | |
| | 50m 27.64 | 100m 57.92 | 150m 1:28.60 | 200m 1:59.18 | 250m 2:28.97 | 300m 2:59.18 | 350m 3:29.50 | 400m 3:59.29 | |
| 2. | Regan Lloyd | 25 | teamipswich | | 4:01.41 | | | | |
| | 50m 27.43 | 100m 57.24 | 150m 1:27.55 | 200m 1:58.42 | 250m 2:29.05 | 300m 2:59.41 | 350m 3:30.32 | 400m 4:01.41 | |
| 3. | Jacques Bonsell | 23 | Co Cambridge | | 4:06.66 | | | | |
| | 50m 26.77 | 100m 57.66 | 150m 1:28.54 | 200m 1:59.78 | 250m 2:31.48 | 300m 3:03.81 | 350m 3:36.05 | 400m 4:06.66 | |
| 4. | Marin De Villard | 17 | St Felix Sch | | 4:07.89 | | | | |
| | 50m 26.82 | 100m 57.66 | 150m 1:29.13 | 200m 2:00.72 | 250m 2:32.66 | 300m 3:05.18 | 350m 3:37.30 | 400m 4:07.89 | |
| 5. | Ryan Wall | 15 | Co Cambridge | | 4:11.25 | | | | |
| | 50m 28.26 | 100m 59.30 | 150m 1:31.38 | 200m 2:04.13 | 250m 2:35.55 | 300m 3:08.01 | 350m 3:40.10 | 400m 4:11.25 | |
| 6. | Daniel McGuinness | 16 | Basildon Ph | | 4:11.58 | | | | |
| | 50m 27.89 | 100m 58.81 | 150m 1:30.95 | 200m 2:03.20 | 250m 2:35.68 | 300m 3:08.04 | 350m 3:40.72 | 400m 4:11.58 | |
| 7. | Orlando Dearing | 14 | Co Peterboro | | 4:15.16 | | | | |
| | 50m 29.91 | 100m 1:02.36 | 150m 1:34.97 | 200m 2:07.90 | 250m 2:39.82 | 300m 3:12.07 | 350m 3:44.27 | 400m 4:15.16 | |
| 8. | Daniel Moyses | 16 | Co Peterboro | | 4:17.20 | | | | |
| | 50m 29.06 | 100m 1:00.76 | 150m 1:33.34 | 200m 2:05.96 | 250m 2:39.35 | 300m 3:12.60 | 350m 3:45.85 | 400m 4:17.20 | |
| 9. | Matthew Monie | 17 | Co Cambridge | | 4:17.26 | | | | |
| | 50m 28.77 | 100m 59.78 | 150m 1:31.88 | 200m 2:04.38 | 250m 2:36.26 | 300m 3:09.00 | 350m 3:42.62 | 400m 4:17.26 | |
| 10. | Daniel Belsey | 14 | Hatfield | | 4:19.53 | | | | |
| | 50m 29.19 | 100m 1:01.13 | 150m 1:34.12 | 200m 2:07.92 | 250m 2:41.36 | 300m 3:14.98 | 350m 3:48.77 | 400m 4:19.53 | |
| 11. | Daniel Clayton | 16 | teamipswich | | 4:20.17 | | | | |
| | 50m 28.56 | 100m 1:00.11 | 150m 1:32.77 | 200m 2:05.98 | 250m 2:39.27 | 300m 3:13.03 | 350m 3:46.82 | 400m 4:20.17 | |
| 12. | Jack Barnard | 17 | Potters Bar | | 4:24.54 | | | | |
| | 50m 29.66 | 100m 1:02.37 | 150m 1:36.18 | 200m 2:10.19 | 250m 2:43.89 | 300m 3:18.25 | 350m 3:51.69 | 400m 4:24.54 | |
| 13. | Thomas Ford | 16 | Basildon Ph | | 4:25.07 | | | | |
| | 50m 30.29 | 100m 1:04.34 | 150m 1:38.21 | 200m 2:12.59 | 250m 2:45.69 | 300m 3:19.51 | 350m 3:52.51 | 400m 4:25.07 | |
| | Reece Barclay | 31 | Epping For't | | DNC | | | | |
| | William Ellard | 16 | St Felix Sch | | DNC | | | | |
