| Place | Name | AaD | Club | Time | R.T. | FINA Pt | 50 | |||
| 1. | Sam Dailley | 18 | Mt Kelly | 54.68 | + 0.59 | 756 | 25.57 | |||
| 2. | Edward Mildred | 16 | Northampton | 55.00 | + 0.61 | 743 | 25.61 | |||
| 3. | Archie Goodburn | 18 | Warrender Ba | 55.16 | + 0.64 | 736 | 25.67 | |||
| 4. | Thomas Beeley | 20 | Plymouth Lea | 55.29 | + 0.57 | 731 | 25.95 | |||
| 5. | Jonathan Milner | 18 | Co Leeds | 55.33 | + 0.67 | 730 | 25.78 | |||
| 6. | Ben Hooper | 19 | Hillingdon | 55.37 | + 0.67 | 728 | 25.92 | |||
| 7. | James Woodward | 19 | Hatfield | 55.81 | + 0.61 | 711 | 26.18 | |||
| 8. | Marc Elrick | 20 | Co Glasgow | 56.04 | + 0.62 | 702 | 25.71 |