EVENT 301 Mixed 10 Yrs/Over 800m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Isaac RHOADES | 12 | Co Lincoln P | |
| 4 | 2 | Honey FLOWER | 12 | Grantham | |
| 5 | 3 | Tom HUGHES | 18 | Deepings | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 4 | Sophie HARRISON | 15 | Deepings | |
| 3 | 5 | Hugo BRAILSFORD | 12 | Deepings | |
| 4 | 6 | Ada PAGE | 10 | Grantham | |
| 5 | 7 | Annabel HILLSON | 11 | Grantham | |
| 6 | 8 | Caitlynn EDMEADES | 12 | Deepings | |
| 7 | 9 | Emmeline GLEAVE | 11 | Grantham | |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 10 | Bethany MEAKIN | 12 | Grantham | |
| 2 | 11 | Florence HARPER | 13 | Grantham | |
| 3 | 12 | Yu Ching (Eugene) CHEU | 15 | Grantham | |
| 4 | 13 | Esmé EVANS | 12 | Grantham | |
| 5 | 14 | Zachary TOMLINSON | 13 | Co Lincoln P | 15:09.79 |
| 6 | 15 | Evangeline KINNEAR | 13 | Grantham | 14:54.38 |
| 7 | 16 | Martha SMITH | 11 | Co Lincoln P | 14:30.00 |
| 8 | 17 | Martha WILLIAMS | 10 | Co Lincoln P | 14:30.00 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 18 | Niamh KERRIGAN | 13 | Co Lincoln P | 14:23.60 |
| 2 | 19 | Ava MORGAN | 12 | Co Lincoln P | 14:14.85 |
| 3 | 20 | Alex HUCKLE | 10 | Co Lincoln P | 14:00.00 |
| 4 | 21 | Jenson FRANCIS-SWABY | 10 | Co Lincoln P | 14:00.00 |
| 5 | 22 | Megan PERKIN | 11 | Lincoln Vulc | 14:00.00 |
| 6 | 23 | Skye WARREN | 12 | Newark | 13:48.72 |
| 7 | 24 | Mya LAMBERT | 10 | Co Lincoln P | 13:30.00 |
| 8 | 25 | Thomas KINNEAR | 15 | Grantham | 13:24.16 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 26 | Katie BEASTALL | 13 | Co Lincoln P | 13:13.61 |
| 2 | 27 | Fox RICHARDSON | 10 | Co Lincoln P | 13:00.00 |
| 3 | 28 | Lottie Ava FLATTERS | 14 | Deepings | 12:48.62 |
| 4 | 29 | Annabel SHEPHERD | 14 | Deepings | 12:47.81 |
| 5 | 30 | Isla GILLIATT | 12 | Co Lincoln P | 12:45.00 |
| 6 | 31 | Mia WILLIAMS | 12 | Co Lincoln P | 12:45.00 |
| 7 | 32 | Mia SHARPE | 12 | Co Lincoln P | 12:45.00 |
| 8 | 33 | Ethan MEHTA | 12 | Co Lincoln P | 12:30.00 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 34 | Matias MIGLIORINO | 10 | Newark | 12:30.00 |
| 2 | 35 | Jack ROWSELL | 12 | Co Lincoln P | 12:30.00 |
| 3 | 36 | Madeline SURTEES | 13 | Grantham | 12:29.54 |
| 4 | 37 | Olivia KING | 14 | Deepings | 12:18.04 |
| 5 | 38 | Benjamin GODDARD | 13 | Grantham | 12:10.02 |
| 6 | 39 | Sophia CUFFLEY | 11 | Lincoln Vulc | 12:00.00 |
| 7 | 40 | Juliette KIM | 11 | Newark | 12:00.00 |
| 8 | 41 | Harry MELDRUM | 15 | Co Lincoln P | 12:00.00 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 42 | Harrison ABLITT | 11 | Co Lincoln P | 12:00.00 |
| 2 | 43 | Sophie OWEN | 14 | Lincoln Vulc | 11:55.36 |
| 3 | 44 | Alice MCMASTER | 15 | Co Lincoln P | 11:55.23 |
| 4 | 45 | Phoebe CHARMAN | 17 | Lincoln TSA | 11:54.15 |
| 5 | 46 | Ophelia GOODALE | 12 | Deepings | 11:53.42 |
| 6 | 47 | Ruby NISBET | 12 | Newark | 11:45.00 |
| 7 | 48 | Ruby TALKES | 10 | Grantham | 11:45.00 |
| 8 | 49 | Darcie HARDING | 12 | Newark | 11:45.00 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 50 | Haiden IP | 13 | Newark | 11:40.00 |
| 2 | 51 | Ava-Grace GREGORY | 14 | Grantham | 11:38.51 |
| 3 | 52 | Derrin BROCKLEBANK | 12 | Grantham | 11:35.97 |
| 4 | 53 | Ava MACKFALL | 16 | Lincoln Vulc | 11:34.90 |
| 5 | 54 | Elliot GLEAVE | 13 | Grantham | 11:30.27 |
| 6 | 55 | Eva MADDISON | 12 | Co Lincoln P | 11:30.00 |
| 7 | 56 | Finley RUSHTON | 13 | Co Lincoln P | 11:30.00 |
| 8 | 57 | Freya HUGHES | 13 | Co Lincoln P | 11:30.00 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 58 | Catherine SINCLAIR | 13 | Co Lincoln P | 11:30.00 |
| 2 | 59 | Eva ENRIGHT | 14 | Co Lincoln P | 11:30.00 |
| 3 | 60 | Toby BROWN | 14 | Deepings | 11:29.58 |
| 4 | 61 | Elisabeth KINNEAR | 16 | Grantham | 11:26.57 |
| 5 | 62 | Freddie HIRST | 12 | Grantham | 11:24.21 |
| 6 | 63 | Cameron JAMISON | 11 | Lincoln TSA | 11:19.03 |
| 7 | 64 | Ruby WHITEHEAD | 16 | Newark | 11:15.94 |
| 8 | 65 | Isabelle CLAYTON | 14 | Grantham | 11:15.22 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 66 | James FORGIONE | 12 | Newark | 11:15.00 |
| 2 | 67 | Toby EDMONDSON | 12 | Grantham | 11:14.60 |
| 3 | 68 | Aoife HICKEY | 12 | Deepings | 11:06.86 |
| 4 | 69 | Tristan EKE | 15 | Co Lincoln P | 11:05.13 |
| 5 | 70 | Harry BEASTALL | 14 | Co Lincoln P | 10:54.47 |
| 6 | 71 | Iris FRENCH | 16 | Lincoln Vulc | 10:52.99 |
| 7 | 72 | Charlotte TURNER | 16 | Lincoln Vulc | 10:48.79 |
| 8 | 73 | David MCINTOSH | 10 | Co Leeds | 10:43.00 |
| Heat Number - 11 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 74 | Thomas HILLSON | 13 | Grantham | 10:42.58 |
| 2 | 75 | Robyn STEEL | 13 | Co Lincoln P | 10:32.46 |
| 3 | 76 | Amy BARKER | 13 | Lincoln Vulc | 10:30.00 |
| 4 | 77 | Amy TAYLOR | 15 | Grantham | 10:27.44 |
| 5 | 78 | Ellena HOWITT | 15 | Grantham | 10:25.36 |
| 6 | 79 | George LEONARD | 14 | Grantham | 10:25.29 |
| 7 | 80 | Joshua KIM | 13 | Grantham | 10:21.61 |
| 8 | 81 | Oliver CLARKE | 14 | Deepings | 10:16.93 |
| Heat Number - 12 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 82 | Leo BARNETT | 14 | Grantham | 10:16.54 |
| 2 | 83 | Bobby WALLIS | 13 | Co Lincoln P | 10:16.49 |
| 3 | 84 | Finley WEST | 15 | Co Lincoln P | 10:13.57 |
| 4 | 85 | Elena ALDENHOFF-KELLY | 17 | Grantham | 10:05.70 |
| 5 | 86 | Lizzy LERESCHE HANDS | 14 | Grantham | 10:02.39 |
| 6 | 87 | Ethan HUNTER | 15 | Lincoln Vulc | 10:00.66 |
| 7 | 88 | Oliver WILKINSON | 14 | Co Lincoln P | 9:45.44 |
| 8 | 89 | Emily TALKES | 14 | Grantham | 9:40.26 |
| Heat Number - 13 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 91 | Archie FRENCH | 17 | Lincoln Vulc | 9:32.93 |
| 2 | 93 | Grace TURNER | 19 | Grantham | 9:15.60 |
| 3 | 95 | Theo RICHARDS | 16 | Co Lincoln P | 9:10.14 |
| 4 | 97 | James CASH | 16 | Deepings | 8:58.71 |
| 5 | 96 | Daniel HEPPLESTONE | 16 | Co Lincoln P | 8:59.10 |
| 6 | 94 | Ben CARLYLE | 16 | Grantham | 9:11.91 |
| 7 | 92 | Grace MACDONALD | 17 | Grantham | 9:27.78 |
| 8 | 90 | Lucy WILLATTS | 15 | Grantham | 9:37.67 |