EVENT 302 Mixed 50m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Albert THORPE | 10 | Grantham | 1:25.00 |
| 3 | 2 | Louis THOMPSON | 9 | Grantham | 1:25.00 |
| 4 | 3 | Henry LEONARD | 8 | Grantham | 1:25.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Dixie DITCHBURN | 10 | Grantham | 1:25.00 |
| 2 | 5 | Lara HATTON | 9 | Grantham | 1:25.00 |
| 3 | 6 | Martha WOOD | 8 | Grantham | 1:25.00 |
| 4 | 7 | James HAMILTON | 10 | Grantham | 1:25.00 |
| 5 | 8 | Ada PAGE | 8 | Grantham | 1:25.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 9 | Hannah EXLEY | 10 | Grantham | 1:25.00 |
| 2 | 10 | Sophia WRIGHT | 8 | Grantham | 1:25.00 |
| 3 | 11 | Evie FELTON | 9 | Grantham | 1:25.00 |
| 4 | 12 | George DOLAN | 8 | Grantham | 1:25.00 |
| 5 | 13 | Matilda HARPER | 8 | Grantham | 1:25.00 |
| 6 | 14 | Lucia CORTON | 9 | Grantham | 1:20.00 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 15 | Yu Tsing (Trixie) CHEU | 11 | Grantham | 1:13.98 |
| 2 | 16 | Evelyn NICHOLLS | 11 | Grantham | 1:08.00 |
| 3 | 17 | Hana YEWLETT | 10 | Grantham | 1:07.00 |
| 4 | 18 | Niha YEWLETT | 10 | Grantham | 1:07.00 |
| 5 | 19 | Poppy BRODIE | 12 | Grantham | 1:03.24 |
| 6 | 20 | Daniel GODDARD | 9 | Grantham | 1:03.23 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 21 | Evangeline KINNEAR | 11 | Grantham | 1:01.56 |
| 2 | 22 | Annabel HILLSON | 9 | Grantham | 59.82 |
| 3 | 23 | Emmeline GLEAVE | 9 | Grantham | 59.11 |
| 4 | 24 | Honey FLOWER | 10 | Grantham | 58.77 |
| 5 | 25 | Louis WRIGHT | 11 | Grantham | 56.45 |
| 6 | 26 | Olivia CHARITY | 12 | Grantham | 55.80 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 27 | Abigail TAYLOR | 10 | Grantham | 55.57 |
| 2 | 28 | Florence HARPER | 11 | Grantham | 55.46 |
| 3 | 29 | Madeline SURTEES | 12 | Grantham | 55.44 |
| 4 | 30 | Emily CLAYTON | 10 | Grantham | 55.32 |
| 5 | 31 | Matilda MCDONNELL | 11 | Grantham | 55.28 |
| 6 | 32 | Hollie-Anne CROOK | 10 | Grantham | 53.73 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 33 | Freddie HIRST | 10 | Grantham | 53.66 |
| 2 | 34 | Yu Ching (Eugene) CHEU | 13 | Grantham | 53.11 |
| 3 | 35 | Elizabeth JONES | 14 | Grantham | 52.13 |
| 4 | 36 | Thomas HILLSON | 11 | Grantham | 52.03 |
| 5 | 37 | Juliette KIM | 9 | Grantham | 50.66 |
| 6 | 38 | Benjamin GODDARD | 11 | Grantham | 50.55 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 39 | Charlotte GILL | 16 | Grantham | 49.96 |
| 2 | 40 | Jake MCGHEE | 14 | Grantham | 49.78 |
| 3 | 41 | Elisabeth KINNEAR | 14 | Grantham | 49.20 |
| 4 | 42 | Helena HAMILTON | 13 | Grantham | 49.14 |
| 5 | 43 | Ava-Grace GREGORY | 12 | Grantham | 48.58 |
| 6 | 44 | Elliot GLEAVE | 11 | Grantham | 48.22 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 45 | George LEONARD | 12 | Grantham | 47.99 |
| 2 | 46 | Markas PARAPIJONAVICIU | 11 | Grantham | 47.88 |
| 3 | 47 | Isabelle CLAYTON | 12 | Grantham | 47.62 |
| 4 | 48 | Octavia SHEARN | 12 | Grantham | 47.62 |
| 5 | 49 | Leo BARNETT | 12 | Grantham | 47.58 |
| 6 | 50 | Toby EDMONDSON | 10 | Grantham | 47.41 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 51 | Eden DYSON | 13 | Grantham | 47.11 |
| 2 | 52 | Thomas KINNEAR | 13 | Grantham | 46.99 |
| 3 | 53 | Ella KHAMA | 10 | Grantham | 46.42 |
| 4 | 54 | Arthur BREARLEY-NEWSOM | 13 | Grantham | 45.99 |
| 5 | 55 | Hannah DOBNEY | 15 | Grantham | 45.69 |
| 6 | 56 | Joshua KIM | 12 | Grantham | 45.63 |
| Heat Number - 11 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 57 | Amelia HATHWAY | 15 | Grantham | 45.53 |
| 2 | 58 | Lexie SHEWAN | 14 | Grantham | 45.38 |
| 3 | 59 | Lucy ABBOTT | 12 | Grantham | 45.27 |
| 4 | 60 | Daisy CANTILLON | 12 | Grantham | 44.00 |
| 5 | 61 | Alfie HAIGH | 15 | Grantham | 43.90 |
| 6 | 62 | Henry DOLAN | 11 | Grantham | 43.40 |
| Heat Number - 12 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 63 | Lizzy LERESCHE HANDS | 13 | Grantham | 43.10 |
| 2 | 64 | Elena ALDENHOFF-KELLY | 16 | Grantham | 42.98 |
| 3 | 65 | Grace HOWITT | 15 | Grantham | 42.33 |
| 4 | 66 | Annie WEBSTER | 12 | Grantham | 41.72 |
| 5 | 67 | Harriet MCCORMACK | 15 | Grantham | 41.55 |
| 6 | 68 | Jessica - Rose DAVISON | 15 | Grantham | 41.50 |
| Heat Number - 13 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 69 | Alexa WRIGHT | 16 | Grantham | 41.35 |
| 2 | 70 | Ellena HOWITT | 13 | Grantham | 41.07 |
| 3 | 71 | Darcey WOOD | 13 | Grantham | 40.94 |
| 4 | 72 | Mia PARAPIJONAVICIUTE | 15 | Grantham | 40.68 |
| 5 | 73 | Ben CARLYLE | 14 | Grantham | 39.90 |
| 6 | 74 | Annabelle JAY | 13 | Grantham | 39.59 |
| Heat Number - 14 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 75 | Lucy WILLATTS | 13 | Grantham | 39.51 |
| 2 | 76 | Evie TURNER | 18 | Grantham | 38.93 |
| 3 | 77 | Sophie WARD | 15 | Grantham | 38.65 |
| 4 | 78 | Amy TAYLOR | 13 | Grantham | 38.31 |
| 5 | 79 | Emilie WEBB | 14 | Grantham | 38.30 |
| 6 | 80 | Luke DAYBELL | 15 | Grantham | 38.10 |
| Heat Number - 15 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 81 | Grace TURNER | 17 | Grantham | 37.85 |
| 2 | 82 | Megan BROWN | 15 | Grantham | 37.56 |
| 3 | 83 | Isla GRAY | 14 | Grantham | 35.90 |
| 4 | 84 | Daniel DEGNAN | 16 | Grantham | 35.56 |
| 5 | 85 | Alisha TYERS | 24 | Grantham | 34.50 |
| 6 | 86 | Jacob FISH | 15 | Grantham | 34.50 |
| Heat Number - 16 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 88 | Joshua CLARKE | 16 | Grantham | 33.08 |
| 2 | 90 | Jack ZERAVICA | 16 | Grantham | 31.63 |
| 3 | 92 | Benjamin ROBERTS | 15 | Grantham | 30.50 |
| 4 | 91 | George BERWICK | 21 | Grantham | 31.20 |
| 5 | 89 | Zach HOPKINSON | 15 | Grantham | 32.20 |
| 6 | 87 | Adam FOUND | 27 | Grantham | 33.31 |