EVENT 121 Boys 14/15 Yrs 100m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 1 | Robert Addis | 04 | Norfolk | 57.30 |
| 2 | 3 | Elliot Woodburn | 05 | Cumbria | 57.23 |
| 3 | 5 | Max Turner | 04 | Lincolnshire | 56.71 |
| 4 | 7 | Oliver Waller | 05 | Cornwall | 56.06 |
| 5 | 6 | Oliver Burns | 05 | Staffs | 56.44 |
| 6 | 4 | Jack Taylor | 04 | Leics | 56.77 |
| 7 | 2 | Oliver Kocharski | 04 | Wiltshire | 57.23 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 9 | Daniel Day | 04 | Worcs | 55.58 |
| 1 | 11 | Fabian Brudnicki | 04 | Cambs | 55.21 |
| 2 | 13 | Oliver Carless | 04 | Warwicks | 54.36 |
| 3 | 15 | Oliver Richardson | 04 | Sussex | 53.95 |
| 4 | 17 | Dylan Morgan | 04 | Swim Wales W | 53.73 |
| 5 | 16 | Michael Klimaszewski | 04 | SE Herts | 53.73 |
| 6 | 14 | Oliver Kettle | 04 | Hampshire | 54.17 |
| 7 | 12 | Connor Talbot | 04 | Gloucs | 55.02 |
| 8 | 10 | Robbie Hemmings | 04 | Dorset | 55.39 |
| 9 | 8 | Rhys Davidson | 04 | Bedfordshire | 55.99 |