EVENT 16 Boys Open 100m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Kieron TOMS | 13 | Deepings | 2:17.27 |
| 3 | 2 | Woody CLARK | 9 | Grantham | 1:56.00 |
| 4 | 3 | Henry DOLAN | 9 | Grantham | 1:55.15 |
| 5 | 4 | Thomas BURDOCK | 12 | Deepings | 1:49.63 |
| 6 | 5 | Yu Ching (Eugene) CHEU | 11 | Grantham | 1:46.37 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Callum LOYNES | 11 | Co Lincoln P | 1:45.00 |
| 2 | 7 | Thomas HILLSON | 9 | Grantham | 1:44.94 |
| 3 | 8 | Isacc DONALDSON-BADGER | 10 | Deepings | 1:43.90 |
| 4 | 9 | Fraser REID | 13 | Deepings | 1:42.00 |
| 5 | 10 | George LEONARD | 10 | Grantham | 1:41.36 |
| 6 | 11 | Thomas KINNEAR | 12 | Grantham | 1:40.57 |
| 7 | 12 | Leo BARNETT | 11 | Grantham | 1:39.61 |
| 8 | 13 | Bertie ROSE | 9 | Lincoln Vulc | 1:39.30 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Jasper REID | 13 | Deepings | 1:39.00 |
| 2 | 15 | Joshua KIM | 10 | Grantham | 1:38.85 |
| 3 | 16 | Evan NIXON | 11 | Lincoln Vulc | 1:36.80 |
| 4 | 17 | Ryan BARGH | 10 | Co Lincoln P | 1:36.00 |
| 5 | 18 | Jacob STAPLES | 11 | Lincoln Vulc | 1:35.00 |
| 6 | 19 | Lucas GOODWIN | 12 | Lincoln Vulc | 1:35.00 |
| 7 | 20 | Kai HILAROWICZ | 10 | Lincoln Vulc | 1:35.00 |
| 8 | 21 | Finley WEST | 11 | Co Lincoln P | 1:34.49 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 22 | Bobby WALLIS | 10 | Co Lincoln P | 1:34.48 |
| 2 | 23 | Elliot GLEAVE | 10 | Grantham | 1:31.14 |
| 3 | 24 | Rhys LEWIS | 11 | Lincoln Vulc | 1:30.00 |
| 4 | 25 | Aiden HUNTLEY | 11 | Co Lincoln P | 1:27.45 |
| 5 | 26 | Tristan EKE | 12 | Co Lincoln P | 1:26.20 |
| 6 | 27 | Alfie HAIGH | 14 | Grantham | 1:25.62 |
| 7 | 28 | Noah SKINNER | 12 | Deepings | 1:25.50 |
| 8 | 29 | Stanley THURLOW | 10 | Lincoln Vulc | 1:24.80 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 30 | Arthur BREARLEY-NEWSOM | 12 | Grantham | 1:22.27 |
| 2 | 31 | Joel SADLER | 12 | Grantham | 1:22.06 |
| 3 | 32 | Anas LACHHEB | 13 | Deepings | 1:21.00 |
| 4 | 33 | Ethan DERBY | 12 | Lincoln Vulc | 1:20.48 |
| 5 | 34 | Connor SMITH | 12 | Grantham | 1:20.28 |
| 6 | 35 | Ryan SMITH | 13 | Grantham | 1:19.16 |
| 7 | 36 | Dan PALMER | 10 | Co Lincoln P | 1:17.30 |
| 8 | 37 | Jacob GIFFORD | 12 | Lincoln Vulc | 1:15.75 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 38 | C SINCLAIR-GRZESKO | 14 | Lincoln Vulc | 1:15.00 |
| 2 | 39 | Oliver WILKINSON | 10 | Lincoln Vulc | 1:14.90 |
| 3 | 40 | Kieran BLOOR | 12 | Co Lincoln P | 1:14.86 |
| 4 | 41 | Jack BELL | 14 | Deepings | 1:14.50 |
| 5 | 42 | Isaac GREENSLADE | 13 | Lincoln Vulc | 1:14.40 |
| 6 | 43 | Callum GILKES | 26 | Lincoln Vulc | 1:13.47 |
| 7 | 44 | Robert WASHBROOK | 13 | Lincoln Vulc | 1:12.47 |
| 8 | 45 | Themba LUNGU | 13 | Lincoln Vulc | 1:10.90 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 46 | Zachary WILSON | 11 | Lincoln Vulc | 1:10.00 |
| 2 | 47 | Jack HICKS | 13 | Lincoln Vulc | 1:09.99 |
| 3 | 48 | Benjamin DERBY | 14 | Lincoln Vulc | 1:08.20 |
| 4 | 49 | Harry VICKERS | 15 | Lincoln Vulc | 1:06.44 |
| 5 | 50 | Archie FRENCH | 13 | Lincoln Vulc | 1:06.13 |
| 6 | 51 | Oliver GARNER | 13 | Co Lincoln P | 1:06.00 |
| 7 | 52 | Lucas NEWBOULT | 13 | Lincoln Vulc | 1:04.80 |
| 8 | 53 | Daniel DEGNAN | 14 | Grantham | 1:04.70 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 54 | Jacob HEGG | 13 | Lincoln Vulc | 1:04.52 |
| 2 | 55 | Harry NEWMAN | 17 | Deepings | 1:04.50 |
| 3 | 56 | Luke DAYBELL | 13 | Grantham | 1:04.22 |
| 4 | 57 | Dominik WASHBROOK | 15 | Lincoln Vulc | 1:04.12 |
| 5 | 58 | Freddie TRAGNI | 13 | Co Lincoln P | 1:03.68 |
| 6 | 59 | Jacob BRIERS | 15 | Deepings | 1:01.96 |
| 7 | 60 | Hayden POTTS | 15 | Lincoln Vulc | 1:01.43 |
| 8 | 61 | Oliver JONES | 14 | Lincoln Vulc | 1:01.02 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 63 | Joshua CRAVEN | 16 | Co Lincoln P | 1:00.44 |
| 2 | 65 | Harry KINGSTON | 18 | Co Lincoln P | 58.18 |
| 3 | 67 | Joshua CLARKE | 15 | Grantham | 57.06 |
| 4 | 69 | Jamie GREEN | 18 | Co Lincoln P | 55.87 |
| 5 | 68 | Christian O'MALLEY | 16 | Lincoln Vulc | 56.22 |
| 6 | 66 | Thomas HEPPLESTONE | 17 | Co Lincoln P | 57.10 |
| 7 | 64 | Jack HUGHES | 15 | Lincoln Vulc | 58.47 |
| 8 | 62 | Aidan FITZGIBBON | 15 | Co Lincoln P | 1:00.90 |