EVENT 102 Mixed 50m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Henry LEONARD | 8 | Grantham | 1:15.00 |
| 3 | 2 | Lara HATTON | 9 | Grantham | 1:10.00 |
| 4 | 3 | Martha WOOD | 8 | Grantham | 1:10.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Ada PAGE | 8 | Grantham | 1:10.00 |
| 2 | 5 | George DOLAN | 8 | Grantham | 1:10.00 |
| 3 | 6 | Evie FELTON | 9 | Grantham | 1:10.00 |
| 4 | 7 | Sophia WRIGHT | 8 | Grantham | 1:00.00 |
| 5 | 8 | Olivia TURNER | 11 | Grantham | 1:00.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 9 | Yu Tsing (Trixie) CHEU | 11 | Grantham | 59.29 |
| 2 | 10 | Ellie ROSE | 14 | Grantham | 59.00 |
| 3 | 11 | James HAMILTON | 10 | Grantham | 56.85 |
| 4 | 12 | Evelyn NICHOLLS | 11 | Grantham | 54.00 |
| 5 | 13 | Emmeline GLEAVE | 9 | Grantham | 53.70 |
| 6 | 14 | Evangeline KINNEAR | 11 | Grantham | 53.58 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 15 | Poppy BRODIE | 12 | Grantham | 50.20 |
| 2 | 16 | Chloe GOACHER | 11 | Grantham | 49.51 |
| 3 | 17 | Abigail TAYLOR | 10 | Grantham | 49.25 |
| 4 | 18 | Emily CLAYTON | 10 | Grantham | 48.23 |
| 5 | 19 | Annabel HILLSON | 9 | Grantham | 47.60 |
| 6 | 20 | Honey FLOWER | 10 | Grantham | 45.61 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 21 | Iannis DIDE | 9 | Grantham | 45.00 |
| 2 | 22 | Louis WRIGHT | 11 | Grantham | 44.57 |
| 3 | 23 | Thomas KINNEAR | 13 | Grantham | 40.12 |
| 4 | 24 | Helena HAMILTON | 13 | Grantham | 39.85 |
| 5 | 25 | Madeline SURTEES | 12 | Grantham | 39.50 |
| 6 | 26 | Ava-Grace GREGORY | 12 | Grantham | 38.40 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 27 | Jake MCGHEE | 14 | Grantham | 37.86 |
| 2 | 28 | Octavia SHEARN | 12 | Grantham | 37.70 |
| 3 | 29 | Juliette KIM | 9 | Grantham | 37.60 |
| 4 | 30 | Hollie-Anne CROOK | 10 | Grantham | 37.59 |
| 5 | 31 | Freddie HIRST | 10 | Grantham | 37.44 |
| 6 | 32 | Henry DOLAN | 11 | Grantham | 37.26 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 33 | Charlotte GILL | 16 | Grantham | 36.82 |
| 2 | 34 | Elisabeth KINNEAR | 14 | Grantham | 36.80 |
| 3 | 35 | Ella KHAMA | 10 | Grantham | 36.76 |
| 4 | 36 | Elizabeth JONES | 14 | Grantham | 36.62 |
| 5 | 37 | Derrin BROCKLEBANK | 10 | Grantham | 36.01 |
| 6 | 38 | Daisy CANTILLON | 12 | Grantham | 36.00 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 39 | George LEONARD | 12 | Grantham | 35.60 |
| 2 | 40 | Toby EDMONDSON | 10 | Grantham | 35.59 |
| 3 | 41 | Hannah DOBNEY | 15 | Grantham | 35.51 |
| 4 | 42 | Thomas HILLSON | 11 | Grantham | 35.40 |
| 5 | 43 | Arthur BREARLEY-NEWSOM | 13 | Grantham | 35.38 |
| 6 | 44 | Leo BARNETT | 12 | Grantham | 35.37 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 45 | Isabelle CLAYTON | 12 | Grantham | 35.35 |
| 2 | 46 | Elliot GLEAVE | 11 | Grantham | 34.95 |
| 3 | 47 | Fabian KOLASA | 13 | Grantham | 34.82 |
| 4 | 48 | Alfie HAIGH | 15 | Grantham | 34.79 |
| 5 | 49 | Lucy ABBOTT | 12 | Grantham | 34.16 |
| 6 | 50 | Markas PARAPIJONAVICIU | 11 | Grantham | 34.06 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 51 | Lexie SHEWAN | 14 | Grantham | 33.40 |
| 2 | 52 | Eden DYSON | 13 | Grantham | 33.36 |
| 3 | 53 | Annie WEBSTER | 12 | Grantham | 33.23 |
| 4 | 54 | Yu Ching (Eugene) CHEU | 13 | Grantham | 33.19 |
| 5 | 55 | Grace HOWITT | 15 | Grantham | 33.00 |
| 6 | 56 | Lizzy LERESCHE HANDS | 13 | Grantham | 32.70 |
| Heat Number - 11 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 57 | Mia PARAPIJONAVICIUTE | 15 | Grantham | 32.46 |
| 2 | 58 | Amy TAYLOR | 13 | Grantham | 32.12 |
| 3 | 59 | Sophie WARD | 15 | Grantham | 31.62 |
| 4 | 60 | Emilie WEBB | 14 | Grantham | 31.30 |
| 5 | 61 | Lucy WILLATTS | 13 | Grantham | 30.79 |
| 6 | 62 | Annabelle JAY | 13 | Grantham | 30.42 |
| Heat Number - 12 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 63 | Darcey WOOD | 13 | Grantham | 29.98 |
| 2 | 64 | Jessica - Rose DAVISON | 15 | Grantham | 29.90 |
| 3 | 65 | Ellena HOWITT | 13 | Grantham | 29.90 |
| 4 | 66 | Megan BROWN | 15 | Grantham | 29.78 |
| 5 | 67 | Elena ALDENHOFF-KELLY | 16 | Grantham | 29.50 |
| 6 | 68 | Ben CARLYLE | 14 | Grantham | 29.40 |
| Heat Number - 13 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 69 | James NICHOLS | 15 | Grantham | 28.67 |
| 2 | 70 | Daniel DEGNAN | 16 | Grantham | 28.15 |
| 3 | 71 | Luke DAYBELL | 15 | Grantham | 28.15 |
| 4 | 72 | Grace TURNER | 17 | Grantham | 27.90 |
| 5 | 73 | Alisha TYERS | 24 | Grantham | 27.63 |
| 6 | 74 | Adam FOUND | 27 | Grantham | 26.62 |
| Heat Number - 14 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 76 | Zach HOPKINSON | 15 | Grantham | 26.50 |
| 2 | 78 | George BERWICK | 21 | Grantham | 26.27 |
| 3 | 80 | Benjamin ROBERTS | 15 | Grantham | 24.50 |
| 4 | 79 | Joshua CLARKE | 16 | Grantham | 25.08 |
| 5 | 77 | Jacob FISH | 15 | Grantham | 26.41 |
| 6 | 75 | Jack ZERAVICA | 16 | Grantham | 26.52 |