EVENT 213 Boy/Girl 12 /Over 100m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 3 | 1 | Mwaba Mkwasa | 16 | SB8 | Norwich Swan | 1:53.48 |
| 4 | 3 | Leyla Corani | 12 | | Colchester | 1:42.06 |
| 5 | 2 | Lilia Burgoyne | 12 | | Gt Yarmouth | 1:42.69 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 2 | 5 | Louis Hochenberg | 12 | | Potters Bar | 1:41.67 |
| 3 | 7 | Lily Colbourne | 12 | | Norwich Swan | 1:41.03 |
| 4 | 9 | Aidan Scott | 12 | | St Felix Sch | 1:40.09 |
| 5 | 8 | Lily Murrell | 12 | | Norwich Swan | 1:40.35 |
| 6 | 6 | Kabir Patel | 12 | | Potters Bar | 1:41.38 |
| 7 | 4 | Charlie Hill | 12 | | West Norfolk | 1:41.79 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 11 | Rose-Ellen Flannery | 12 | | Hatfield | 1:39.88 |
| 2 | 13 | Lyla Flello | 12 | | Co Norwich | 1:39.62 |
| 3 | 15 | Daniel Andrews | 12 | | Halstead | 1:38.45 |
| 4 | 17 | Henry Martin | 12 | | Hatfield | 1:35.46 |
| 5 | 16 | Harry Griffiths | 12 | | Colchester | 1:37.25 |
| 6 | 14 | I Stratton-Thomsett | 12 | | Colchester | 1:38.59 |
| 7 | 12 | Scarlett Mercer | 12 | | Harlow Pen | 1:39.74 |
| 8 | 10 | Bethany Rumsby | 12 | | Norwich Swan | 1:40.04 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 19 | Matt Phoenix-McGlynn | 13 | | Norwich Swan | 1:33.12 |
| 2 | 21 | Jack Webb | 13 | | Witham Dolph | 1:32.44 |
| 3 | 23 | Gabriella Meyer | 12 | | Chelmsford | 1:32.25 |
| 4 | 25 | Jemima Kimber | 13 | | Linslade | 1:30.78 |
| 5 | 24 | Ruby Rowland | 12 | | Gt Yarmouth | 1:30.90 |
| 6 | 22 | Eleanor McLeod | 13 | | Putteridge | 1:32.35 |
| 7 | 20 | Kian Lee | 13 | | Co Peterboro | 1:32.69 |
| 8 | 18 | Forbes Irvine | 13 | | Diss Otters | 1:33.59 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 27 | William Frost | 13 | | Basildon Ph | 1:30.12 |
| 2 | 29 | Robert Gor | 13 | | Bishop Stort | 1:29.95 |
| 3 | 31 | Eloise Cole | 13 | | Modernian | 1:29.55 |
| 4 | 33 | Jack Swindale | 13 | | Co Peterboro | 1:29.28 |
| 5 | 32 | Poppy Magill | 13 | | Putteridge | 1:29.28 |
| 6 | 30 | Kiera Broad | 13 | | West Suffolk | 1:29.81 |
| 7 | 28 | Teilo Ruffles-Francis | 13 | | Stowmarket | 1:29.99 |
| 8 | 26 | William Faver | 13 | | Chelmsford | 1:30.66 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 35 | Oscar Sherwani | 13 | | Flitwick | 1:28.97 |
| 2 | 37 | Catherine Clune | 13 | | Bishop Stort | 1:27.89 |
| 3 | 39 | Joseph Clarke | 13 | | Stowmarket | 1:27.08 |
| 4 | 41 | Nwando Ifeacho | 13 | | Modernian | 1:26.01 |
| 5 | 40 | Ernest Juverdeanu | 13 | | Chelmsford | 1:26.84 |
| 6 | 38 | Reece Burns | 13 | | Witham Dolph | 1:27.44 |
| 7 | 36 | Hannah Lovelock | 13 | | Hitchin | 1:28.38 |
| 8 | 34 | Abigail Riches | 13 | | Norwich Swan | 1:29.16 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 43 | Shahd Mohamed | 14 | | Co Peterboro | 1:25.68 |
| 2 | 45 | Joe Vesztrocy | 14 | | Flitwick | 1:24.50 |
| 3 | 47 | Charlie Payne | 14 | | Newmarket | 1:23.13 |
| 4 | 49 | Elizabeth Wright | 14 | | West Suffolk | 1:22.80 |
| 5 | 48 | Kieran Sterry | 14 | | Basildon Ph | 1:22.98 |
| 6 | 46 | Nathan Birchenough | 14 | | St Felix Sch | 1:23.39 |
| 7 | 44 | Hannah Cushion | 14 | | Hatfield | 1:25.42 |
| 8 | 42 | Jemima Cross | 13 | | Hitchin | 1:25.72 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 51 | Rhys Burrell | 14 | | West Norfolk | 1:22.38 |
| 2 | 53 | Molly Grieve | 16 | | Colchester | 1:21.56 |
| 3 | 55 | Yousof Habieb | 15 | | Co Peterboro | 1:20.19 |
| 4 | 57 | Imola Jozsa | 15 | | Hatfield | 1:19.78 |
| 5 | 56 | Thomas Spelman | 14 | | Stowmarket | 1:20.09 |
| 6 | 54 | Grace Greenhalf | 14 | | Co Norwich | 1:21.50 |
| 7 | 52 | James Williamson | 14 | | Co Cambridge | 1:21.89 |
| 8 | 50 | Lilly Davis | 14 | | Co Peterboro | 1:22.53 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 59 | Gagan Singh | 15 | | Co Peterboro | 1:19.72 |
| 2 | 61 | Samuel Jeffrey | 14 | | Hatfield | 1:18.16 |
| 3 | 63 | Megan Pye | 19 | | Co Norwich | 1:17.73 |
| 4 | 65 | Isaac Farrugia | 14 | | Basildon Ph | 1:17.30 |
| 5 | 64 | James Renton | 15 | | Potters Bar | 1:17.35 |
| 6 | 62 | Joseph Burns | 15 | | Witham Dolph | 1:17.87 |
| 7 | 60 | Jack McIntosh | 15 | | Co Norwich | 1:19.03 |
| 8 | 58 | Toby Richardson | 15 | | West Suffolk | 1:19.75 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 67 | Austin Everitt | 15 | | Norwich Swan | 1:16.72 |
| 2 | 69 | David Badcock | 15 | | Bishop Stort | 1:15.09 |
| 3 | 71 | Luke Payne | 17 | | Hatfield | 1:13.71 |
| 4 | 73 | Antonio Girolami | 16 | | Colchester | 1:12.34 |
| 5 | 72 | Joseph Wells | 22 | | West Norfolk | 1:12.47 |
| 6 | 70 | Luka Page | 15 | | West Suffolk | 1:14.56 |
| 7 | 68 | Prem Parmar | 16 | | Flitwick | 1:16.62 |
| 8 | 66 | Luke Read | 15 | | Basildon Ph | 1:16.92 |