EVENT 418 Boys 10 Yrs/Over 100m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Edward Ormsby | 11 | Royston | 1:30.90 |
| 2 | 3 | William Fawcett | 11 | Watford SC | 1:28.52 |
| 3 | 5 | Koby Cornwell | 11 | Potters Bar | 1:27.15 |
| 4 | 7 | Jason Hicks | 12 | Watford SC | 1:26.64 |
| 5 | 6 | William Buckley | 12 | Watford SC | 1:26.72 |
| 6 | 4 | Igor Mordeja | 11 | Cheshunt | 1:27.32 |
| 7 | 2 | Tom Dennis | 10 | Harpenden | 1:30.73 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 9 | Ethan Howard | 11 | Potters Bar | 1:26.13 |
| 2 | 11 | Alexander Kalverboer | 12 | Berkhamsted | 1:25.87 |
| 3 | 13 | Nathanial Mapley | 12 | Co St Albans | 1:25.13 |
| 4 | 15 | Jamie Ismatullaev | 12 | Watford SC | 1:23.04 |
| 5 | 14 | Jake Moore | 12 | Potters Bar | 1:23.94 |
| 6 | 12 | Fergus Reid | 12 | Co St Albans | 1:25.55 |
| 7 | 10 | Ryan Wall | 11 | Royston | 1:25.95 |
| 8 | 8 | Theo Lim | 12 | Watford SC | 1:26.20 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 17 | Thomas Godfrey | 12 | Co St Albans | 1:22.27 |
| 2 | 19 | Joel Pietersen | 11 | Hatfield | 1:21.31 |
| 3 | 21 | Joshua Heesom | 13 | Potters Bar | 1:21.14 |
| 4 | 23 | Eldrick Manela | 13 | Stevenage | 1:19.55 |
| 5 | 22 | Jason Ho | 12 | Hatfield | 1:21.05 |
| 6 | 20 | Charles Taverner | 13 | Watford SC | 1:21.29 |
| 7 | 18 | James Coleman | 13 | Co St Albans | 1:21.39 |
| 8 | 16 | Cub Maddison | 12 | Hatfield | 1:22.31 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 25 | Daniel Holliss | 12 | Co St Albans | 1:19.12 |
| 2 | 27 | Kieran Birkett | 13 | Co St Albans | 1:17.84 |
| 3 | 29 | Enzo Lim | 13 | Watford SC | 1:16.99 |
| 4 | 31 | Peter Soczewka | 13 | Hatfield | 1:14.80 |
| 5 | 30 | James Gisborne | 13 | Bishop Stort | 1:15.75 |
| 6 | 28 | Oliver Carpenter | 13 | Co St Albans | 1:17.66 |
| 7 | 26 | Matthew Martin | 13 | Co St Albans | 1:18.18 |
| 8 | 24 | Max Hill | 12 | Stevenage | 1:19.53 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 33 | Nathaniel Hopkins | 14 | Verulam | 1:14.29 |
| 2 | 35 | Taylor Coe | 14 | Cheshunt | 1:12.80 |
| 3 | 37 | Samuel Pyefinch | 13 | Tring | 1:11.83 |
| 4 | 39 | Harry Arbuthnott | 15 | Harpenden | 1:11.01 |
| 5 | 38 | Nathaniel Olayomi | 15 | Watford SC | 1:11.25 |
| 6 | 36 | Oscar Brice | 14 | Co St Albans | 1:12.48 |
| 7 | 34 | Arvin Rodriguez | 14 | Watford SC | 1:13.01 |
| 8 | 32 | Noah Cornwell | 14 | Potters Bar | 1:14.35 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 41 | Euan Donald | 15 | Berkhamsted | 1:10.42 |
| 2 | 43 | Lewis Shayler | 15 | Watford SC | 1:09.29 |
| 3 | 45 | Ketan Rach | 14 | Watford SC | 1:08.31 |
| 4 | 47 | Zane Batt | 15 | Cheshunt | 1:07.87 |
| 5 | 46 | Luke Pestaille | 15 | Hatfield | 1:08.11 |
| 6 | 44 | Mattias Morse | 15 | Hemel Hemp | 1:08.89 |
| 7 | 42 | Alfie Francis | 15 | Potters Bar | 1:09.87 |
| 8 | 40 | Alexander Catton | 15 | Bishop Stort | 1:11.01 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 51 | Callum Wollaston | 17 | Cheshunt | 1:06.88 |
| 2 | 57 | Daniel Martin | 15 | Co St Albans | 1:06.49 |
| 3 | 63 | Ashley Holness-Wright | 22 | Watford SC | 1:04.34 |
| 4 | 69 | David Shipman | 18 | Potters Bar | 1:02.14 |
| 5 | 66 | Daniel Lush | 18 | Potters Bar | 1:03.78 |
| 6 | 60 | Tolu Elesin | 16 | Potters Bar | 1:06.28 |
| 7 | 54 | Bryn Couser | 16 | Bishop Stort | 1:06.62 |
| 8 | 48 | Benjamin Green | 14 | Watford SC | 1:07.52 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 52 | Daniel Murtagh | 15 | Hatfield | 1:06.79 |
| 2 | 58 | Harrison Lees | 17 | Watford SC | 1:06.37 |
| 3 | 64 | Cole James | 17 | Hatfield | 1:04.31 |
| 4 | 70 | Reese Housden | 16 | Hatfield | 1:00.91 |
| 5 | 67 | Callum Davis | 18 | Bishop Stort | 1:03.75 |
| 6 | 61 | Samuel Gaines | 17 | Hemel Hemp | 1:05.29 |
| 7 | 55 | Thomas Toland | 17 | Co St Albans | 1:06.59 |
| 8 | 49 | Charlie King | 15 | Co St Albans | 1:06.96 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 53 | John Telensky | 17 | Harpenden | 1:06.72 |
| 2 | 59 | Thomas Stanbury | 17 | Potters Bar | 1:06.34 |
| 3 | 65 | Zachary Patel | 17 | Berkhamsted | 1:04.11 |
| 4 | 71 | Jack Christie | 20 | Co St Albans | 1:00.75 |
| 5 | 68 | Yannik Wilson | 16 | Harpenden | 1:03.43 |
| 6 | 62 | William Loveman | 18 | Co St Albans | 1:04.97 |
| 7 | 56 | Kyle Holmes | 19 | Hemel Hemp | 1:06.55 |
| 8 | 50 | Thomas Ogden | 14 | Bishop Stort | 1:06.89 |