EVENT 109 Open/Male 09 /Over 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Ethan Woodward | 9 | Kimberley | 1:59.84 |
| 4 | 3 | Rowan Barrowcliffe | 10 | Retford | 1:55.00 |
| 5 | 2 | Devon Richardson | 11 | Bircotes SC | 1:55.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 5 | Tom Barratt | 10 | Gainsborough | 1:42.80 |
| 1 | 7 | Jacob Evans | 11 | Dronfield | 1:39.79 |
| 2 | 9 | Peeyansh Sharma | 12 | Sherwood | 1:36.27 |
| 3 | 11 | Yousef Faisal | 12 | Trafford Met | 1:33.09 |
| 4 | 13 | Theo Bennett | 12 | Trafford Met | 1:31.83 |
| 5 | 12 | Joshua Harrison | 10 | Kimberley | 1:32.55 |
| 6 | 10 | Kaiden Richardson | 12 | Bircotes SC | 1:34.50 |
| 7 | 8 | George White | 11 | BelperMarlin | 1:38.90 |
| 8 | 6 | Isaac Wright | 9 | Gainsborough | 1:40.24 |
| 9 | 4 | Tommy-Lucas Parkinson | 10 | Gainsborough | 1:50.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 15 | Joseph Wright | 11 | Gainsborough | 1:30.26 |
| 1 | 17 | Cobie Cross | 11 | Retford | 1:28.66 |
| 2 | 19 | Harry Shea | 12 | Trafford Met | 1:26.19 |
| 3 | 21 | Oscar He | 12 | Gainsborough | 1:24.38 |
| 4 | 23 | Felix Robertson | 12 | Dronfield | 1:22.80 |
| 5 | 22 | Elliott Claxton | 14 | BelperMarlin | 1:22.96 |
| 6 | 20 | Anton Stark | 13 | Trafford Met | 1:24.49 |
| 7 | 18 | Joshua Giles | 13 | Trafford Met | 1:28.36 |
| 8 | 16 | Jonny Oliver | 11 | Eckington | 1:29.25 |
| 9 | 14 | Oscar Wilson | 11 | BelperMarlin | 1:31.16 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 25 | Reid Hutchins | 10 | Retford | 1:21.50 |
| 1 | 27 | Ethan Buckley | 12 | BelperMarlin | 1:20.60 |
| 2 | 29 | William Newman-Carter | 11 | Retford | 1:20.55 |
| 3 | 31 | Daniel Mason | 12 | Sherwood | 1:19.23 |
| 4 | 33 | Archie Barrett | 13 | BelperMarlin | 1:17.61 |
| 5 | 32 | Jake Webster | 11 | Trafford Met | 1:19.12 |
| 6 | 30 | Caiden Mattison | 15 | Sherwood | 1:19.58 |
| 7 | 28 | Alfie Grounsell | 12 | Retford | 1:20.60 |
| 8 | 26 | Kwong Lam Leung | 13 | Trafford Met | 1:21.48 |
| 9 | 24 | Riley Burns | 12 | Sherwood | 1:22.40 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 35 | Brendan Thompson | 12 | Bircotes SC | 1:15.94 |
| 1 | 37 | Jokubas Rudys | 14 | Bircotes SC | 1:14.51 |
| 2 | 39 | Matthew Windeler | 14 | Trafford Met | 1:12.96 |
| 3 | 41 | Cole Burke | 14 | BelperMarlin | 1:08.72 |
| 4 | 43 | C Butterell-Quanbrough | 15 | Retford | 1:02.19 |
| 5 | 42 | Samuel Green | 14 | Retford | 1:06.42 |
| 6 | 40 | James Thomas | 15 | Gainsborough | 1:11.51 |
| 7 | 38 | Henry Davies | 13 | Sherwood | 1:13.62 |
| 8 | 36 | Noah Crook | 13 | Dronfield | 1:15.47 |
| 9 | 34 | Alexandr Kulev | 13 | BelperMarlin | 1:16.50 |