EVENT 103 Boys Open 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Isaac BUCHAN | 9 | Middlesboro | : . |
| 4 | 2 | Thomas EBLET | 9 | King'f Scar | : . |
| 5 | 3 | Luke FRANKLIN | 10 | King'f Scar | : . |
| 6 | 4 | Callum CLEMENTS-WOODS | 10 | Co Leeds | : . |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 5 | Charlie CLARKE | 9 | Bo Barnsley | : . |
| 1 | 6 | Oliver STEELE | 9 | Co Leeds | : . |
| 2 | 7 | Koby MITCHELL | 9 | Co Leeds | : . |
| 3 | 8 | RIO DAODU | 9 | Cleethorpes | : . |
| 4 | 9 | Joseph BUTLER | 11 | Co Leeds | : . |
| 5 | 10 | Ginikanwa ENE | 10 | Co Leeds | : . |
| 6 | 11 | Sam FORSYTH | 11 | Scarborough | : . |
| 7 | 12 | Daniel CROFT | 9 | Oldham Aqua | : . |
| 8 | 13 | Miles KEARNS | 9 | Cleethorpes | : . |
| 9 | 14 | Nathan RADBOURNE | 9 | Co Leeds | : . |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 15 | Thomas MILNER | 9 | Co Leeds | : . |
| 1 | 16 | Maximus POTTER | 10 | Middlesboro | : . |
| 2 | 17 | Luke FOUNDE | 10 | Oldham Aqua | : . |
| 3 | 18 | Jacob GOODWIN | 10 | Co Leeds | : . |
| 4 | 19 | Perry LEWTY | 9 | Co Leeds | : . |
| 5 | 20 | Kourosh KHODAKHAH | 9 | Co Leeds | : . |
| 6 | 21 | Mathew BRADLEY | 10 | Cleethorpes | : . |
| 7 | 22 | Harry SENIOR | 10 | Co Leeds | : . |
| 8 | 23 | Lewis WOOD | 11 | Oldham Aqua | : . |
| 9 | 24 | Jack MOCZARSKI | 9 | Cleethorpes | : . |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 25 | Joshua MOSS | 11 | Tadcaster | : . |
| 1 | 26 | Theodore ROSENBERG | 9 | Co Leeds | : . |
| 2 | 27 | Zak STOLARSKI | 11 | Co Leeds | : . |
| 3 | 28 | Solomon HODGSON | 10 | Co Leeds | : . |
| 4 | 29 | Matthew ROBERTS | 10 | Co Leeds | : . |
| 5 | 30 | Joseph BENSON | 10 | King'f Scar | : . |
| 6 | 31 | George KNOWLES | 11 | Co Leeds | : . |
| 7 | 32 | Jamie BROADHURST | 10 | Co Leeds | : . |
| 8 | 33 | Harrison SMITH | 11 | Co Leeds | : . |
| 9 | 34 | Michael DIXON | 12 | Everton | : . |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 35 | Ziggy STANDRING | 10 | Oldham Aqua | : . |
| 1 | 36 | Ashton DEES | 10 | Co Leeds | : . |
| 2 | 37 | Marshall HEATON | 13 | Halifax | : . |
| 3 | 38 | Joseph MOMENT | 10 | Scarborough | : . |
| 4 | 39 | Lewis HORNER | 10 | Middlesboro | : . |
| 5 | 40 | Henry FIRTH | 11 | Co Leeds | : . |
| 6 | 41 | Luke BOARDMAN | 13 | Everton | : . |
| 7 | 42 | Joshua BROMPTON | 11 | Co Leeds | : . |
| 8 | 43 | Leo BAKER | 11 | Oldham Aqua | : . |
| 9 | 44 | Tyler MAGUIRE-THORNTON | 12 | Oldham Aqua | : . |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 45 | Jordan COOPER-SMITH | 15 | BelperMarlin | : . |
| 1 | 46 | Finlay BUXTON | 11 | Cleethorpes | : . |
| 2 | 47 | Jack JENKINSON | 10 | Skipton | : . |
| 3 | 48 | Harrison EVANS | 13 | Everton | : . |
| 4 | 49 | Elliott WATKINS | 11 | Co Leeds | : . |
| 5 | 50 | Thomas SPENCER | 11 | Co Leeds | : . |
| 6 | 51 | Jack MILNER | 12 | Co Leeds | : . |
| 7 | 52 | Jacob BRAITHWAITE | 13 | Co Leeds | : . |
| 8 | 53 | Harvey PENNINGTON | 11 | Skipton | : . |
| 9 | 54 | Kalum SMART | 12 | Bo Barnsley | : . |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 55 | Joshua SUTCLIFFE | 11 | Co Leeds | : . |
| 1 | 56 | Joseph DUNN | 15 | Halifax | : . |
| 2 | 57 | Matthew SELOUS | 13 | Bo Barnsley | : . |
| 3 | 58 | Thomas BERGMANN | 11 | Sheffield C | : . |
| 4 | 59 | Emilio PANIAGUA-GUTIER | 12 | Co Leeds | : . |
| 5 | 60 | Fenn CURRAN | 12 | Skipton | : . |
| 6 | 61 | Maxwell WALKER | 14 | Scunthorpe A | : . |
| 7 | 62 | Robert WELLS | 14 | Cleethorpes | : . |
| 8 | 63 | Charlie BROOME | 12 | Co Leeds | : . |
| 9 | 64 | Nicholas BRACKENRIDGE | 16 | Halifax | : . |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 65 | Tiger EDWARDS | 14 | Oldham Aqua | : . |
| 1 | 66 | Harry MILNER | 12 | Co Leeds | : . |
| 2 | 67 | George SMITH | 13 | Co Leeds | : . |
| 3 | 68 | Alex WILLIAMS | 13 | Tadcaster | : . |
| 4 | 69 | Ethan SUTCLIFFE | 13 | Co Leeds | : . |
| 5 | 70 | Joseph TURNER | 14 | Co Leeds | : . |
| 6 | 71 | Curtis HARPER | 11 | Bo Barnsley | : . |
| 7 | 72 | Louis AINLEY | 12 | Co Leeds | : . |
| 8 | 73 | Joseph MICKLEWRIGHT | 15 | Middlesboro | : . |
| 9 | 74 | Luke METCALFE | 16 | Co Leeds | : . |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 75 | Jack TURNBULL | 13 | Middlesboro | : . |
| 1 | 76 | Jamie BROOME | 14 | Co Leeds | : . |
| 2 | 77 | Daniel LEE | 17 | Everton | : . |
| 3 | 78 | Michael PICKSTOCK | 14 | Everton | : . |
| 4 | 79 | Dalton CLAPHAM | 13 | Co Leeds | : . |
| 5 | 80 | Matthew YEOMANS | 14 | Co Leeds | : . |
| 6 | 81 | Declan SEQUEIRA | 14 | Skipton | : . |
| 7 | 82 | Jack WHITEHURST | 15 | Rotherham Mo | : . |
| 8 | 83 | Oliver BRADLEY | 14 | Cleethorpes | : . |
| 9 | 84 | Rhys DODDS | 18 | Bev Barracud | : . |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 86 | Jake LAMBERT | 15 | Co Leeds | : . |
| 1 | 88 | Samuel KING | 14 | Skipton | : . |
| 2 | 90 | Ehren BERESFORD | 16 | Rotherham Mo | : . |
| 3 | 92 | Nathan WOOD | 16 | Cleethorpes | : . |
| 4 | 94 | Devin KELLETT | 18 | Stocksbridge | : . |
| 5 | 93 | Jack CASSELL | 16 | Middlesboro | : . |
| 6 | 91 | James PETTENER | 15 | Hoylake | : . |
| 7 | 89 | Akal REHAL | 13 | Co Leeds | : . |
| 8 | 87 | Ned SHARP | 13 | Skipton | : . |
| 9 | 85 | Benjamin BROOKS | 15 | Co Leeds | : . |