EVENT 27 Female 50m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Evelyn CHARITY | 9 | Grantham | 1:07.78 |
| 2 | 2 | Nina KOZIOL | 11 | Lincoln TSA | 1:07.35 |
| 3 | 3 | Lily MCCORMICK | 9 | Lincoln TSA | 1:05.15 |
| 4 | 5 | Emily WHITTAKER | 10 | Louth | 58.00 |
| 5 | 6 | Tabitha LAMBERT | 10 | Lincoln Vulc | 51.30 |
| 6 | 7 | Seren TWINLEY | 10 | Deepings | 49.73 |
| 7 | 8 | Penelope WILKINSON | 11 | Grantham | 49.72 |
| 8 | 9 | Elizabeth MAINWARING | 12 | Boston | 48.10 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 10 | Imola HARRIS | 9 | Grantham | 47.72 |
| 2 | 11 | Isabelle TEASDALE | 9 | Louth | 47.54 |
| 3 | 12 | Jemima-Blu BRENNAN | 9 | Gainsborough | 47.30 |
| 4 | 13 | Olivia NORBURN | 11 | Gainsborough | 47.00 |
| 5 | 14 | Sophia WRIGHT | 10 | Grantham | 46.99 |
| 6 | 15 | Bethany MEAKIN | 11 | Grantham | 45.70 |
| 7 | 16 | Gwen GREENAN | 9 | Louth | 45.63 |
| 8 | 17 | Evie BURGESS | 11 | Lincoln Vulc | 45.06 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 18 | Lola HATCH | 11 | Gainsborough | 45.00 |
| 2 | 19 | Ella FRANCIS | 9 | Boston | 44.96 |
| 3 | 20 | Felicity MARSHALL | 12 | Deepings | 44.68 |
| 4 | 21 | Megan PERKIN | 11 | Lincoln Vulc | 44.60 |
| 5 | 22 | Ella RICHES | 11 | Boston | 44.54 |
| 6 | 23 | Lillian ROBSON | 11 | Lincoln Vulc | 43.96 |
| 7 | 24 | Martha WOOD | 9 | Grantham | 43.13 |
| 8 | 25 | Florence MCCLURE | 10 | Lincoln TSA | 43.06 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 26 | Elsie WOOD | 9 | Louth | 42.59 |
| 2 | 27 | Leela-Mya EDWARDS | 11 | Gainsborough | 42.20 |
| 3 | 28 | Evelyn NICHOLLS | 12 | Grantham | 41.26 |
| 4 | 29 | Scarlet THOMPSON | 16 | Boston | 41.18 |
| 5 | 30 | Lily MULCAHY | 13 | Lincoln Vulc | 40.93 |
| 6 | 31 | Isla GARNETT | 11 | Lincoln Vulc | 40.62 |
| 7 | 32 | Rian TEMPEST | 10 | Skegness | 40.34 |
| 8 | 33 | Annabel HILLSON | 11 | Grantham | 40.07 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 34 | Elsa STEVENSON | 10 | Lincoln Vulc | 40.00 |
| 2 | 35 | Erin SMITH | 10 | Deepings | 39.76 |
| 3 | 36 | Skye WARREN | 12 | Lincoln TSA | 39.68 |
| 4 | 37 | Yu Tsing (Trixie) CHEU | 12 | Grantham | 39.61 |
| 5 | 38 | Betsy BOLAND | 13 | Louth | 39.56 |
| 6 | 39 | Rosie FLETT | 12 | Louth | 39.40 |
| 7 | 40 | Edith TEMPLEMAN | 9 | Louth | 39.30 |
| 8 | 41 | Annabelle SEAGROATT | 10 | Louth | 39.12 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 42 | Evelyn LITTLE | 11 | Lincoln Vulc | 39.11 |
| 2 | 43 | Chloe GOACHER | 12 | Grantham | 38.94 |
| 3 | 44 | Jessica REEVES | 12 | Lincoln Vulc | 38.70 |
| 4 | 45 | Abigail TAYLOR | 12 | Grantham | 38.10 |
| 5 | 46 | Olivia CHARITY | 14 | Grantham | 37.85 |
| 6 | 47 | Niamh O'CONNOR | 12 | Louth | 37.80 |
| 7 | 48 | Nancy FRENCH | 10 | Louth | 37.49 |
| 8 | 49 | C TOH-GRUDZINSKI | 9 | Lincoln Vulc | 37.30 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 50 | Alessia NICASSIO | 13 | Louth | 37.17 |
| 2 | 51 | Amelie HUNT | 12 | Deepings | 37.01 |
| 3 | 52 | Freya COPCUTT | 15 | Lincoln Vulc | 36.70 |
| 4 | 53 | Elizabeth GARLICK | 10 | Louth | 36.50 |
| 5 | 54 | Gracie DAWSON | 12 | Deepings | 36.27 |
| 6 | 55 | Scarlett ROBERTS | 12 | Lincoln Vulc | 36.20 |
| 7 | 56 | Jessica SPECK | 15 | Lincoln Vulc | 36.19 |
| 8 | 57 | Alicja ODROBINSKA | 13 | Deepings | 36.10 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 58 | Jasmine CHEETHAM | 12 | Lincoln Vulc | 35.99 |
| 2 | 59 | Jasmine HOLDER | 11 | Gainsborough | 35.77 |
| 3 | 60 | Olivia PRECIOUS | 17 | Gainsborough | 35.60 |
| 4 | 61 | Amaya MONTEALEGRE | 12 | Lincoln Vulc | 35.40 |
| 5 | 62 | Poppy-Rose WILSON | 11 | Deepings | 35.30 |
| 6 | 63 | Victoria MCKAY | 12 | Gainsborough | 35.25 |
| 7 | 64 | Madeline SURTEES | 13 | Grantham | 34.90 |
| 8 | 65 | Caitlynn EDMEADES | 12 | Deepings | 34.74 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 66 | Suzuki CARTER | 11 | Skegness | 34.70 |
| 2 | 67 | Sophie HODSON | 15 | Deepings | 34.70 |
| 3 | 68 | Honey FLOWER | 11 | Grantham | 34.67 |
| 4 | 69 | Anastasiia KUDRIAVETS | 14 | Deepings | 34.61 |
| 5 | 70 | Izabella ZANIEWSKA | 13 | Boston | 34.60 |
| 6 | 71 | Maisie DARBY | 15 | Lincoln Vulc | 34.50 |
| 7 | 72 | Erin MELLER | 12 | Louth | 34.50 |
| 8 | 73 | Orla BAILEY | 15 | Deepings | 34.48 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 74 | Rosie JONES | 15 | Deepings | 34.35 |
| 2 | 75 | Octavia SHEARN | 13 | Grantham | 34.32 |
| 3 | 76 | Sophie HARRISON | 15 | Deepings | 34.30 |
| 4 | 77 | Isla CASSIDY | 18 | Louth | 34.09 |
| 5 | 78 | Lily HALE | 11 | Skegness | 33.98 |
| 6 | 79 | Isabel SORBY | 13 | Skegness | 33.98 |
| 7 | 80 | Alice SOWDEN | 11 | Gainsborough | 33.87 |
| 8 | 81 | Hollie-Ann CROOK | 11 | Grantham | 33.76 |
| Heat Number - 11 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 82 | Sienna NEWMAN | 11 | Lincoln Vulc | 33.75 |
| 2 | 83 | Amy FOSTER | 12 | Louth | 33.60 |
| 3 | 84 | Caitlin CROSS | 13 | Lincoln Vulc | 33.40 |
| 4 | 85 | Florence SHEPHERD | 14 | Gainsborough | 33.40 |
| 5 | 86 | Poppy CHAPMAN | 14 | Louth | 33.30 |
| 6 | 87 | Sophie FOSTER | 15 | Louth | 33.30 |
| 7 | 88 | Robyn CROSS | 13 | Lincoln Vulc | 33.01 |
| 8 | 89 | Ella HE | 13 | Gainsborough | 33.00 |
| Heat Number - 12 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 90 | Ava-Grace GREGORY | 14 | Grantham | 32.96 |
| 2 | 91 | Chloe APPLEWHITE | 10 | Gainsborough | 32.90 |
| 3 | 92 | Ella KHAMA | 12 | Grantham | 32.88 |
| 4 | 93 | Emilija IVANOVA | 17 | Boston | 32.70 |
| 5 | 94 | Mia PARAPIJONAVICIUTE | 17 | Grantham | 32.49 |
| 6 | 95 | Lucy ABBOTT | 14 | Grantham | 32.41 |
| 7 | 96 | Thea WHOTTON | 13 | Louth | 32.20 |
| 8 | 97 | Amy BARKER | 12 | Lincoln Vulc | 32.20 |
| Heat Number - 13 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 98 | Colette GRANTHAM | 12 | Lincoln Vulc | 32.10 |
| 2 | 99 | Zoe JONES | 13 | Louth | 31.99 |
| 3 | 100 | Aoife HICKEY | 11 | Deepings | 31.97 |
| 4 | 101 | Annabel SHEPHERD | 13 | Deepings | 31.90 |
| 5 | 102 | Emma PEPPER | 14 | Deepings | 31.87 |
| 6 | 103 | Iris FRENCH | 15 | Lincoln Vulc | 31.70 |
| 7 | 104 | Amy TAYLOR | 14 | Grantham | 31.42 |
| 8 | 105 | Ella-Rose HUNTER | 13 | Lincoln Vulc | 31.36 |
| Heat Number - 14 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 106 | Emily HUNT | 16 | Lincoln Vulc | 31.07 |
| 2 | 107 | Esme APPLEWHITE | 12 | Gainsborough | 31.00 |
| 3 | 108 | Olivia KING | 14 | Deepings | 30.89 |
| 4 | 109 | Lottie Ava FLATTERS | 13 | Deepings | 30.77 |
| 5 | 110 | Madeleine SEAGROATT | 13 | Louth | 30.77 |
| 6 | 111 | Isla SCOTT | 15 | Lincoln Vulc | 30.70 |
| 7 | 112 | Isobel VAUSE | 17 | Deepings | 30.50 |
| 8 | 113 | Ellena HOWITT | 14 | Grantham | 30.18 |
| Heat Number - 15 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 115 | Isla LORMOR | 13 | Gainsborough | 29.80 |
| 2 | 117 | Evie NEWMAN | 13 | Lincoln Vulc | 29.02 |
| 3 | 119 | Emily TALKES | 14 | Grantham | 28.20 |
| 4 | 121 | Darcey WOOD | 14 | Grantham | 27.98 |
| 5 | 120 | Suzanna BURKE | 14 | Louth | 28.06 |
| 6 | 118 | Amelia BIRD | 15 | Skegness | 28.48 |
| 7 | 116 | Jessica - Rose DAVISON | 16 | Grantham | 29.38 |
| 8 | 114 | Sally NORMAN | 38 | Boston | 29.94 |