EVENT 327 Mixed 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 2 | 1 | Daniil OBUHOV | 13 | Braunstone | |
| 3 | 3 | Amelia BELCHER | 11 | Coalville | |
| 4 | 6 | Emilia DURRINGTON | 10 | Braunstone | |
| 5 | 5 | Ivy BROWN | 12 | Melton M'bry | |
| 6 | 2 | Harry STATHAM-GILL | 13 | Coalville | |
| 7 | 39 | Chiara REEDHA | 09 | Braunstone | |
| 8 | 33 | Philippa BODEY | 11 | Leicester Ne | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 9 | Jessica GREENHALGH | 11 | Leicester Ne | |
| 2 | 11 | Peta MORLEY | 11 | Hinckley | |
| 3 | 13 | Chloe MORLEY | 12 | Coalville | |
| 4 | 15 | Sophia TSINONTAS | 10 | Leic Sharks | |
| 5 | 14 | Oliver GOODWIN | 10 | Coalville | |
| 6 | 12 | Andrei OBUHOV | 11 | Braunstone | |
| 7 | 10 | India SAWYER | 12 | Coalville | |
| 8 | 7 | Georgia DAVIES | 11 | Hinckley | |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 17 | Ryan HEJRATY | 10 | Leicester Ne | |
| 2 | 19 | John GRAHAM-BROWN | 12 | Leic Peng | |
| 3 | 22 | Isabelle WALCZAK | 08 | Leic Peng | |
| 4 | 24 | Megan BLAIR | 11 | Coalville | |
| 5 | 23 | Eloise ALLSAGER | 07 | Leic Peng | |
| 6 | 20 | Marta UCIECHA | 10 | Leicester Ne | |
| 7 | 18 | Ava HARVEY | 09 | Leic Sharks | |
| 8 | 16 | James NIGHTINGALE | 10 | Coalville | |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 28 | Bethany HENSON | 10 | Coalville | |
| 2 | 25 | Frank BACON | 10 | Braunstone | |
| 3 | 29 | Nicola MICHALSKA | 11 | Leic Sharks | |
| 4 | 49 | Theo BLACK | 10 | Leic Sharks | |
| 5 | 30 | Victor BRAMLEY-HOWELL | 10 | Leic Peng | |
| 6 | 26 | Ava STEANS | 10 | Hinckley | |
| 7 | 27 | Lily BARKER | 03 | Leic Sharks | : . |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 31 | Abigail GOLYNKER | 10 | Leic Sharks | |
| 2 | 34 | Elizabeth PALFREY | 08 | Loughborough | |
| 3 | 36 | Holly GENT | 11 | Coalville | |
| 4 | 40 | Jessica OXLEY | 09 | Braunstone | : . |
| 5 | 37 | Sarah DEW | 07 | Leic Sharks | |
| 6 | 35 | Mason TRAYNOR | 13 | Coalville | |
| 7 | 32 | Emma GRAHAM-BROWN | 09 | Leic Peng | |
| Heat Number - 6 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 42 | Lewis FITCH | 07 | Braunstone | : . |
| 2 | 44 | Francesca HARRISON | 09 | Braunstone | : . |
| 3 | 46 | Oliver DAVIES | 09 | Leic Peng | : . |
| 4 | 48 | Sean MCCANN | 05 | Loughborough | : . |
| 5 | 47 | Daniel HARRIS | 07 | Coalville | : . |
| 6 | 45 | William OXLEY | 10 | Braunstone | : . |
| 7 | 43 | Jacson CRABB | 11 | Leic Sharks | : . |
| 8 | 41 | Freddie BURDETT | 10 | Leic Peng | : . |