EVENT 105 Girl 12 Yrs/Under 50m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Jane BEECH | 12 | Melton M'bry | |
| 3 | 2 | Freya SHARPE | 9 | Lincoln Vulc | |
| 4 | 3 | Isabel SORBY | 9 | Skegness | |
| 5 | 4 | Anaiya FACEY | 9 | Skegness | |
| 6 | 5 | Missi WAIK | 12 | Melton M'bry | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Maya GLASSFORD | 11 | Melton M'bry | |
| 2 | 7 | Florence CARLSON | 10 | Deepings | |
| 3 | 8 | Isabelle CLAYTON | 9 | Grantham | |
| 4 | 9 | Darcey WOOD | 10 | Grantham | |
| 5 | 10 | Lucy BEARDSMORE | 11 | Grantham | |
| 6 | 11 | Floria PERRATON- WILLI | 10 | Grantham | |
| 7 | 12 | Angelina BALLARD | 10 | Lincoln Vulc | |
| 8 | 15 | Rowan OSBORNE | 11 | Lincoln Vulc | |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 16 | Isla SCOTT | 11 | Lincoln Vulc | |
| 2 | 17 | Isla CLARK | 12 | Skegness | |
| 3 | 18 | Tallulah ADAMS | 12 | Melton M'bry | |
| 4 | 19 | Lily-May CLARK | 9 | Melton M'bry | |
| 5 | 20 | Sophie PERKINS | 10 | Grantham | 1:35.40 |
| 6 | 21 | Josie DAY | 11 | Co Lincoln P | 1:30.00 |
| 7 | 22 | Emily PENNELL | 12 | Co Lincoln P | 1:30.00 |
| 8 | 23 | Hetty BELL | 9 | Grantham | 1:27.30 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 24 | Maja WOJNOWSKA | 10 | Grantham | 1:21.90 |
| 2 | 26 | Phoebe THORPE | 12 | Co Lincoln P | 1:20.00 |
| 3 | 28 | Lily SIMES | 9 | Grantham | 1:15.90 |
| 4 | 30 | Millie POOLE | 11 | Co Lincoln P | 1:15.00 |
| 5 | 31 | Annie WEBSTER | 10 | Grantham | 1:13.90 |
| 6 | 32 | Indra DEAVES | 11 | Grantham | 1:13.08 |
| 7 | 33 | Felicity HOGGARD | 10 | Melton M'bry | 1:11.93 |
| 8 | 34 | Isabella STARK | 11 | Grantham | 1:11.60 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 35 | Emma AFFLECK | 10 | Deepings | 1:10.85 |
| 2 | 36 | Sophie ROBINSON | 11 | Deepings | 1:10.78 |
| 3 | 38 | Emily HUNT | 12 | Lincoln Vulc | 1:10.00 |
| 4 | 39 | Helena HAMILTON | 10 | Grantham | 1:09.70 |
| 5 | 40 | Annabella WALKER | 11 | Lincoln Vulc | 1:09.59 |
| 6 | 41 | Elizabeth LERESCHE HAN | 10 | Grantham | 1:09.20 |
| 7 | 42 | Lucy JENKINSON | 10 | Deepings | 1:08.34 |
| 8 | 43 | Eleanor TWINLEY | 11 | Deepings | 1:07.79 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 44 | Isla RICHARDS | 10 | Retford | 1:07.22 |
| 2 | 46 | Annabel SHEPHERD | 9 | Deepings | 1:06.25 |
| 3 | 47 | Sophia KEAST | 10 | Melton M'bry | 1:06.22 |
| 4 | 48 | Sophie GILL | 10 | Grantham | 1:04.80 |
| 5 | 49 | Clea TREHARNE | 10 | Deepings | 1:04.56 |
| 6 | 51 | Megan BATES | 11 | Melton M'bry | 1:03.45 |
| 7 | 52 | Macy BUNDOCK | 11 | Deepings | 1:03.20 |
| 8 | 53 | Sophie COLE | 11 | Lincoln Vulc | 1:02.97 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 55 | Ava-Grace GREGORY | 10 | Grantham | 1:02.38 |
| 2 | 56 | Alice MCMASTER | 10 | Lincoln Vulc | 1:02.36 |
| 3 | 57 | Lucy WILLATTS | 10 | Grantham | 1:02.19 |
| 4 | 58 | Lucy ABBOTT | 10 | Grantham | 1:01.89 |
| 5 | 59 | Eleanor BIRINY | 11 | Lincoln Vulc | 1:01.78 |
| 6 | 60 | Ava CUTTS | 11 | Co Lincoln P | 1:01.45 |
| 7 | 61 | Orla BAILEY | 11 | Deepings | 1:01.31 |
| 8 | 62 | Emily GOODACRE | 10 | Retford | 1:00.74 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 63 | Monika WOJCIK | 12 | Lincoln Vulc | 1:00.63 |
| 2 | 65 | Amelia COUSIN | 12 | Melton M'bry | 1:00.27 |
| 3 | 66 | Isla STOCKLEY | 10 | Retford | 59.97 |
| 4 | 67 | Iris FRENCH | 11 | Lincoln Vulc | 59.21 |
| 5 | 68 | Olivia KING | 10 | Deepings | 58.99 |
| 6 | 69 | Charlotte JENKINSON | 11 | Deepings | 58.50 |
| 7 | 70 | Scarlett WALKER | 12 | Deepings | 58.48 |
| 8 | 71 | Hannah CRADOCK | 10 | Deepings | 58.40 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 72 | Jasmin HOGG | 11 | Skegness | 58.04 |
| 2 | 73 | Eydee CHILVERS | 11 | Deepings | 57.82 |
| 3 | 74 | Lily HINSON | 12 | Lincoln Vulc | 57.61 |
| 4 | 76 | Chloe BELLIS | 10 | Deepings | 57.14 |
| 5 | 77 | Ellena HOWITT | 10 | Grantham | 56.96 |
| 6 | 78 | Millie DICKINSON | 11 | Lincoln Vulc | 56.83 |
| 7 | 79 | V GRUDZINSKA ALBA | 12 | Lincoln Vulc | 56.60 |
| 8 | 80 | Chelsea TODD | 12 | Lincoln Vulc | 56.20 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 81 | Grace HURN | 12 | Deepings | 55.78 |
| 2 | 82 | Ivy BROWN | 10 | Melton M'bry | 55.57 |
| 3 | 83 | Lexie SHEWAN | 11 | Grantham | 55.44 |
| 4 | 84 | Sophie SHARPE | 11 | Melton M'bry | 55.23 |
| 5 | 86 | Scarlett TAIT | 11 | Melton M'bry | 54.94 |
| 6 | 87 | Amy PALMER | 11 | Co Lincoln P | 54.71 |
| 7 | 88 | Jessica WHITFIELD | 12 | Grantham | 54.44 |
| 8 | 89 | Amelie VENABLES | 10 | Retford | 54.15 |
| Heat Number - 11 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 90 | Ava MACKFALL | 11 | Lincoln Vulc | 53.70 |
| 2 | 91 | Laranya BHOJWANI | 11 | Retford | 53.53 |
| 3 | 92 | Lily-May CRANE | 11 | Grantham | 53.25 |
| 4 | 93 | Ava SKIPSEY | 12 | Melton M'bry | 53.11 |
| 5 | 94 | Charlotte TURNER | 11 | Lincoln Vulc | 52.72 |
| 6 | 95 | Jessica HALL | 9 | Grantham | 52.67 |
| 7 | 96 | Emily TALKES | 10 | Lincoln Vulc | 52.50 |
| 8 | 97 | Amy TAYLOR | 10 | Grantham | 52.45 |
| Heat Number - 12 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 98 | Mia RICHARDS | 12 | Retford | 52.43 |
| 2 | 99 | Harriet MCCORMACK | 12 | Grantham | 52.37 |
| 3 | 100 | Hannah WEBB | 11 | Lincoln Vulc | 52.13 |
| 4 | 101 | Mieke MCDONALD | 12 | Deepings | 51.74 |
| 5 | 102 | Isabella REYNOLDS | 11 | Deepings | 51.69 |
| 6 | 103 | Milen MERRITT | 10 | Melton M'bry | 51.02 |
| 7 | 104 | Imogen HOWITT | 10 | Retford | 51.01 |
| 8 | 105 | Jessica BARGH | 12 | Co Lincoln P | 50.92 |
| Heat Number - 13 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 106 | Amelia BIRD | 11 | Skegness | 50.37 |
| 2 | 107 | Summer PARKER | 12 | Lincoln Vulc | 50.11 |
| 3 | 108 | Poppy GOODACRE | 11 | Retford | 49.98 |
| 4 | 109 | Fleur WHEELER-KAYE | 10 | Retford | 49.84 |
| 5 | 110 | Isla O'CONNOR | 11 | Retford | 49.68 |
| 6 | 111 | Charlotte CLEMENTS | 12 | Retford | 49.64 |
| 7 | 112 | Isabella HALL | 11 | Grantham | 49.35 |
| 8 | 113 | Karolina PARKINSON | 11 | Lincoln Vulc | 47.92 |
| Heat Number - 14 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 115 | Isobelle RAFFERTY | 11 | Retford | 47.00 |
| 2 | 118 | Isobel ALLSOP | 12 | Grantham | 44.30 |
| 3 | 120 | Sophie WARD | 12 | Grantham | 43.12 |
| 4 | 124 | Megan BROWN | 12 | Grantham | 40.28 |
| 5 | 121 | Isla GRAY | 12 | Grantham | 42.65 |
| 6 | 119 | Emilie WEBB | 12 | Grantham | 44.20 |
| 7 | 116 | Iona WATSON | 12 | Retford | 46.20 |
| 8 | 114 | Jessica-Rose DAVISON | 12 | Grantham | 47.43 |