EVENT 104 Boy 09 Yrs/Over 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Joshua Day | 12 | Eckington | 1:38.38 |
| 2 | 2 | Maxwell Millington | 12 | Sherwood | 1:38.08 |
| 3 | 3 | Jack Ryan | 13 | Eckington | 1:34.21 |
| 4 | 4 | Jacob Bailey | 13 | Gainsborough | 1:30.54 |
| 5 | 5 | Harry Meads | 11 | Calv Bing | 1:29.67 |
| 6 | 6 | William Swindlehurst | 13 | Sherwood | 1:28.36 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | Harrison Clark | 12 | Retford | 1:28.21 |
| 2 | 8 | William Newham | 11 | Calv Bing | 1:27.73 |
| 3 | 9 | Elliott Penney | 15 | Eckington | 1:27.30 |
| 4 | 10 | Rishan Chuhan | 12 | Sherwood | 1:26.90 |
| 5 | 11 | Jensen Hylton | 13 | Co Lincoln P | 1:26.56 |
| 6 | 12 | James Thomas | 11 | Gainsborough | 1:24.84 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 13 | Charlie Wheeler-Kaye | 12 | Retford | 1:23.70 |
| 2 | 14 | Ryan Moss | 12 | Sherwood | 1:19.47 |
| 3 | 15 | Harveyjay Allsopp | 11 | Sherwood | 1:17.90 |
| 4 | 16 | Oliver Richmond | 12 | Sherwood | 1:16.44 |
| 5 | 17 | Jake Askin | 17 | Bircotes SC | 1:15.59 |
| 6 | 18 | Archie Glenn | 14 | Co Lincoln P | 1:14.15 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 20 | Sebastian Wilkinson | 16 | Bircotes SC | 1:10.00 |
| 2 | 22 | Jack Carter | 15 | Sherwood | 1:07.03 |
| 3 | 24 | Malachy McGuinness | 18 | Retford | 1:00.06 |
| 4 | 23 | Harry Kingston | 16 | Co Lincoln P | 1:05.64 |
| 5 | 21 | Joseph Parnell | 14 | Co Lincoln P | 1:07.62 |
| 6 | 19 | Seth Hinitt | 15 | Retford | 1:12.89 |