EVENT 204 Girl 12 Yrs/Under 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Ava SKIPSEY | 12 | Melton M'bry | |
| 4 | 2 | Sophie SHARPE | 11 | Melton M'bry | |
| 5 | 3 | Floria PERRATON- WILLI | 10 | Grantham | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Darcey WOOD | 10 | Grantham | |
| 2 | 5 | Isabel SORBY | 9 | Skegness | |
| 3 | 6 | Ava MACKFALL | 11 | Lincoln Vulc | |
| 4 | 7 | Tallulah ADAMS | 12 | Melton M'bry | |
| 5 | 8 | Sophie HOLEC | 9 | Retford | |
| 6 | 9 | Elizabeth LERESCHE HAN | 10 | Grantham | |
| 7 | 11 | Macy BUNDOCK | 11 | Deepings | |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Lily-May CLARK | 9 | Melton M'bry | |
| 2 | 13 | Amelia COUSIN | 12 | Melton M'bry | |
| 3 | 15 | Sophia CANE | 12 | Grantham | |
| 4 | 16 | Rowan OSBORNE | 11 | Lincoln Vulc | |
| 5 | 17 | Freya SHARPE | 9 | Lincoln Vulc | |
| 6 | 18 | Ivy BROWN | 10 | Melton M'bry | |
| 7 | 20 | Lily SIMES | 9 | Grantham | |
| 8 | 21 | Anaiya FACEY | 9 | Skegness | |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 22 | Layla PARKINSON | 10 | Grantham | |
| 2 | 23 | Megan BATES | 11 | Melton M'bry | |
| 3 | 25 | Orla BAILEY | 11 | Deepings | |
| 4 | 26 | Isla SCOTT | 11 | Lincoln Vulc | |
| 5 | 28 | Jasmin HOGG | 11 | Skegness | |
| 6 | 29 | Florence CARLSON | 10 | Deepings | |
| 7 | 30 | Angelina BALLARD | 10 | Lincoln Vulc | |
| 8 | 31 | Maya GLASSFORD | 11 | Melton M'bry | |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 32 | Felicity HOGGARD | 10 | Melton M'bry | |
| 2 | 33 | Sophia KEAST | 10 | Melton M'bry | |
| 3 | 34 | Josie DAY | 11 | Co Lincoln P | 1:40.00 |
| 4 | 35 | Annabel SHEPHERD | 9 | Deepings | 1:35.70 |
| 5 | 36 | Phoebe THORPE | 12 | Co Lincoln P | 1:30.00 |
| 6 | 37 | Summer GILBERT | 10 | Co Lincoln P | 1:30.00 |
| 7 | 38 | Poppy HATHWAY | 10 | Grantham | 1:21.68 |
| 8 | 39 | Lottie Ava FLATTERS | 9 | Deepings | 1:21.06 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 40 | Maja WOJNOWSKA | 10 | Grantham | 1:17.00 |
| 2 | 41 | Olivia KING | 10 | Deepings | 1:16.30 |
| 3 | 43 | Millie DICKINSON | 11 | Lincoln Vulc | 1:10.53 |
| 4 | 44 | Ava CUTTS | 10 | Co Lincoln P | 1:10.00 |
| 5 | 45 | Millie POOLE | 11 | Co Lincoln P | 1:10.00 |
| 6 | 46 | Connie MILLNS | 10 | Co Lincoln P | 1:10.00 |
| 7 | 48 | Helena HAMILTON | 10 | Grantham | 1:08.40 |
| 8 | 49 | Ava-Grace GREGORY | 10 | Grantham | 1:08.17 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 50 | Sophie GILL | 10 | Grantham | 1:07.76 |
| 2 | 52 | Eleanor TWINLEY | 11 | Deepings | 1:05.13 |
| 3 | 53 | V GRUDZINSKA ALBA | 12 | Lincoln Vulc | 1:04.81 |
| 4 | 54 | Emily PENNELL | 12 | Co Lincoln P | 1:04.06 |
| 5 | 55 | Olivia LAUD | 9 | Deepings | 1:03.69 |
| 6 | 56 | Isla RICHARDS | 10 | Retford | 1:03.57 |
| 7 | 57 | Isla CLARK | 12 | Skegness | 1:02.93 |
| 8 | 58 | Isabella STARK | 11 | Grantham | 1:02.90 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 60 | Isabelle CLAYTON | 9 | Grantham | 1:02.34 |
| 2 | 62 | Emily HUNT | 12 | Lincoln Vulc | 1:02.05 |
| 3 | 64 | Indra DEAVES | 11 | Grantham | 1:01.40 |
| 4 | 65 | Lily-May CRANE | 11 | Grantham | 59.93 |
| 5 | 66 | Lucy WILLATTS | 10 | Grantham | 59.08 |
| 6 | 68 | Charlotte TURNER | 11 | Lincoln Vulc | 58.94 |
| 7 | 69 | Alice MCMASTER | 10 | Lincoln Vulc | 58.13 |
| 8 | 70 | Amelia BIRD | 11 | Skegness | 57.69 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 71 | Lucy ABBOTT | 10 | Grantham | 57.47 |
| 2 | 72 | Eleanor BIRINY | 11 | Lincoln Vulc | 57.15 |
| 3 | 73 | Clea TREHARNE | 10 | Deepings | 57.09 |
| 4 | 74 | Hannah CRADOCK | 10 | Deepings | 56.02 |
| 5 | 76 | Jessica WHITFIELD | 12 | Grantham | 55.62 |
| 6 | 77 | Chelsea TODD | 12 | Lincoln Vulc | 55.49 |
| 7 | 78 | Sophie COLE | 11 | Lincoln Vulc | 54.28 |
| 8 | 81 | Amelie VENABLES | 10 | Retford | 53.02 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 82 | Jessica BARGH | 12 | Co Lincoln P | 52.69 |
| 2 | 85 | Summer PARKER | 12 | Lincoln Vulc | 50.80 |
| 3 | 88 | Amy TAYLOR | 10 | Grantham | 50.47 |
| 4 | 89 | Laranya BHOJWANI | 11 | Retford | 50.02 |
| 5 | 90 | Isla STOCKLEY | 10 | Retford | 49.97 |
| 6 | 91 | Lily HINSON | 12 | Lincoln Vulc | 49.48 |
| 7 | 92 | Milen MERRITT | 10 | Melton M'bry | 49.29 |
| 8 | 93 | Lexie SHEWAN | 11 | Grantham | 49.17 |
| Heat Number - 11 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 94 | Fleur WHEELER-KAYE | 10 | Retford | 49.12 |
| 2 | 95 | Chloe BELLIS | 10 | Deepings | 48.56 |
| 3 | 96 | Mia RICHARDS | 12 | Retford | 48.32 |
| 4 | 97 | Maddison HODGIN | 12 | Co Lincoln P | 47.44 |
| 5 | 99 | Lucy-Mae OSBORNE | 10 | Retford | 47.06 |
| 6 | 100 | Eydee CHILVERS | 11 | Deepings | 46.07 |
| 7 | 101 | Lucy BEARDSMORE | 11 | Grantham | 45.99 |
| 8 | 103 | Harriet MCCORMACK | 12 | Grantham | 45.22 |
| Heat Number - 12 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 104 | Ellena HOWITT | 10 | Grantham | 45.20 |
| 2 | 106 | Scarlett WALKER | 12 | Deepings | 44.40 |
| 3 | 107 | Isobel ALLSOP | 12 | Grantham | 44.32 |
| 4 | 108 | Isla MITCHELL | 12 | NottmLeander | 44.24 |
| 5 | 110 | Isobelle RAFFERTY | 11 | Retford | 42.18 |
| 6 | 113 | Scarlett TAIT | 11 | Melton M'bry | 41.00 |
| 7 | 114 | Isla O'CONNOR | 11 | Retford | 40.50 |
| 8 | 115 | Emilie WEBB | 12 | Grantham | 40.23 |
| Heat Number - 13 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 118 | Jessica-Rose DAVISON | 12 | Grantham | 39.21 |
| 2 | 120 | Imogen HOWITT | 10 | Retford | 38.39 |
| 3 | 122 | Megan BROWN | 12 | Grantham | 35.36 |
| 4 | 124 | Grace MACDONALD | 12 | Grantham | 33.89 |
| 5 | 123 | Lilli-Rose CARR | 12 | Co Lincoln P | 34.49 |
| 6 | 121 | Sophie WARD | 12 | Grantham | 37.87 |
| 7 | 119 | Charlotte CLEMENTS | 12 | Retford | 39.11 |
| 8 | 117 | Emily TALKES | 10 | Lincoln Vulc | 39.25 |