EVENT 208 Open/Male 09 /Over 100m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Austin CHEN-REES | 11 | Grantham | |
| 4 | 2 | Oscar CHEN-REES | 12 | Grantham | |
| 5 | 3 | Albert THORPE | 10 | Grantham | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Htet Myet HTUN | 13 | Grantham | |
| 2 | 5 | Daniel GODDARD | 10 | Grantham | 1:37.90 |
| 3 | 6 | George BRUMBY | 9 | Gainsborough | 1:36.70 |
| 4 | 7 | Spencer CROSS | 10 | Melton M'bry | 1:32.80 |
| 5 | 8 | Joshua FORSYTH | 11 | Lincoln Vulc | 1:30.45 |
| 6 | 9 | Dylan HAYLOCK | 11 | March | 1:29.22 |
| 7 | 10 | Thomas KINNEAR | 13 | Grantham | 1:28.95 |
| 8 | 11 | Benjamin GODDARD | 12 | Grantham | 1:28.60 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Alastair CROSS | 13 | Melton M'bry | 1:28.30 |
| 2 | 13 | William PENNOCK | 11 | Grantham | 1:24.16 |
| 3 | 14 | Charlie DIXON | 14 | March | 1:21.60 |
| 4 | 15 | Damir IVANOVS | 10 | Boston | 1:21.13 |
| 5 | 16 | Gregory CROSS | 11 | Melton M'bry | 1:20.90 |
| 6 | 17 | Noah REDWOOD-MOORE | 12 | Melton M'bry | 1:20.71 |
| 7 | 18 | Henry DOLAN | 11 | Grantham | 1:19.11 |
| 8 | 19 | Freddie HIRST | 10 | Grantham | 1:17.30 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 20 | Ethan COUGHLAN | 13 | Lincoln Vulc | 1:16.52 |
| 2 | 21 | Thomas HILLSON | 12 | Grantham | 1:16.50 |
| 3 | 22 | Jacob STAPLES | 13 | Lincoln Vulc | 1:16.28 |
| 4 | 23 | Leo BARNETT | 13 | Grantham | 1:15.98 |
| 5 | 24 | George LEONARD | 12 | Grantham | 1:15.10 |
| 6 | 25 | Ollie BLANCHARD | 14 | Skegness | 1:14.53 |
| 7 | 26 | Derrin BROCKLEBANK | 11 | Grantham | 1:13.06 |
| 8 | 27 | Arthur BREARLEY-NEWSOM | 14 | Grantham | 1:12.66 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 28 | Owen ZHANG | 13 | Gainsborough | 1:12.35 |
| 2 | 29 | Markas PARAPIJONAVICIU | 11 | Grantham | 1:12.26 |
| 3 | 30 | Toby EDMONDSON | 10 | Grantham | 1:12.15 |
| 4 | 31 | Alfie HAIGH | 16 | Grantham | 1:11.29 |
| 5 | 32 | Yu Ching (Eugene) CHEU | 13 | Grantham | 1:10.91 |
| 6 | 33 | Henry WILLERTON | 11 | Skegness | 1:09.81 |
| 7 | 34 | Ethan HUNTER | 14 | Lincoln Vulc | 1:04.79 |
| 8 | 35 | Harry RICKARD | 14 | March | 1:04.61 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 37 | Jack HICKS | 15 | Lincoln Vulc | 1:02.30 |
| 2 | 39 | Luke DAYBELL | 15 | Grantham | 58.09 |
| 3 | 41 | Ben CARLYLE | 15 | Grantham | 57.90 |
| 4 | 43 | Ryan NORTON | 17 | Boston | 55.11 |
| 5 | 42 | Evan NOORPURI | 18 | Lincoln Vulc | 57.89 |
| 6 | 40 | Oliver JONES | 16 | Lincoln Vulc | 57.99 |
| 7 | 38 | Harry VICKERS | 17 | Lincoln Vulc | 1:01.51 |
| 8 | 36 | James THOMAS | 15 | Gainsborough | 1:02.52 |