| | | Heat Number - 1 | | | |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 2 | Elliot ROUTLEDGE | 11 | Workington | 33.30 |
| 2 | 4 | James EDWARDS | 12 | Stockport Mo | 31.60 |
| 3 | 6 | William HARGREAVES | 12 | SwimTrafford | 31.19 |
| 4 | 8 | Matthew STEVENSON | 11 | Biddulph | 30.50 |
| 5 | 7 | James WILSON | 12 | Ellesmere Co | 30.88 |
| 6 | 5 | Thomas MILLBURN | 11 | Workington | 31.20 |
| 7 | 3 | Thomas RUSHFORTH | 12 | Swim Flint | 31.79 |
| 8 | 1 | Cole CHARNOCK | 11 | Co Liverpool | 33.52 |
| | | Heat Number - 2 | | | |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 10 | Aneirin BAKER | 13 | SwimTrafford | 30.29 |
| 2 | 12 | Thomas JAMES | 14 | Co Liverpool | 28.40 |
| 3 | 14 | Ben TALEB | 14 | Halesowen | 27.40 |
| 4 | 16 | Joseph WAREING | 14 | SwimTrafford | 27.20 |
| 5 | 15 | Harry ENTWISTLE | 15 | Oldham Aqua | 27.30 |
| 6 | 13 | Nicholas EVANS | 15 | Warrington W | 27.67 |
| 7 | 11 | Luke SMITH | 13 | Co Sheffield | 29.77 |
| 8 | 9 | Bradley RATCLIFFE | 12 | Oldham Aqua | 30.50 |
| | | Heat Number - 3 | | | |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 18 | Joseph GILLAM | 17 | Burnley BOBC | 26.63 |
| 2 | 20 | Ashley RATCHFORD | 15 | Oldham Aqua | 26.28 |
| 3 | 22 | Adam FAWL | 15 | Blackpool | 25.88 |
| 4 | 24 | Joshua LAYCOCK | 18 | Co Leeds | 25.62 |
| 5 | 23 | Matthew KINSEY | 17 | Stockport Mo | 25.64 |
| 6 | 21 | Ryan JENNINGS | 16 | Wigan BEST | 26.20 |
| 7 | 19 | Johnathan LOWE | 15 | Satellite | 26.53 |
| 8 | 17 | Thomas MILLS | 14 | SwimTrafford | 27.02 |
| | | Heat Number - 4 | | | |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 26 | Sam EDWARDS | 17 | Stockport Mo | 25.06 |
| 2 | 28 | Lloyd AUSTIN | 22 | Satellite | 24.70 |
| 3 | 30 | James GODDARD | 26 | Stockport Mo | 23.50 |
| 4 | 32 | Guy SHERWIN | 25 | StockportITC | 22.87 |
| 5 | 31 | David CARRY | 28 | Stockport Mo | 23.30 |
| 6 | 29 | Arie DEKKER | 25 | Bebington | 23.74 |
| 7 | 27 | Sam DAVIES | 16 | Stockport Mo | 24.96 |
| 8 | 25 | Jonathon HIGHAM | 16 | Trafford Met | 25.50 |