EVENT 301 Mixed 10 Yrs/Over 800m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Olivia CHARITY | 12 | Grantham | 16:14.93 |
| 4 | 3 | Oliver ERSKINE | 11 | Lincoln TSA | 14:52.10 |
| 5 | 2 | Thomas KINNEAR | 13 | Grantham | 16:14.93 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Oscar WOOD | 11 | Lincoln Vulc | 14:20.00 |
| 2 | 7 | Laura LOVETT | 11 | Co Lincoln P | 14:00.00 |
| 3 | 9 | Fabian KOLASA | 13 | Grantham | 13:39.42 |
| 4 | 11 | Toby BROWN | 12 | Deepings | 13:30.00 |
| 5 | 10 | Isla ROBINSON | 10 | Co Lincoln P | 13:30.00 |
| 6 | 8 | Florence EARNSHAW | 12 | Lincoln Vulc | 13:58.00 |
| 7 | 6 | Niamh KERRIGAN | 11 | Co Lincoln P | 14:00.00 |
| 8 | 4 | Zachary TOMLINSON | 11 | Co Lincoln P | 14:30.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 13 | Thomas HILLSON | 11 | Grantham | 13:09.89 |
| 2 | 15 | Daisy CANTILLON | 12 | Grantham | 13:09.89 |
| 3 | 17 | Emilia THORNLEY-PAYNE | 16 | Boston | 13:08.00 |
| 4 | 19 | Abigail TOMLINSON | 11 | Corby | 13:00.00 |
| 5 | 18 | Lucy ABBOTT | 12 | Grantham | 13:00.00 |
| 6 | 16 | Isabelle CLAYTON | 12 | Grantham | 13:08.00 |
| 7 | 14 | Elliot GLEAVE | 11 | Grantham | 13:09.89 |
| 8 | 12 | Sophie OWEN | 12 | Lincoln Vulc | 13:10.00 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 21 | Kai HILAROWICZ | 11 | Co Lincoln P | 13:00.00 |
| 2 | 23 | George LEONARD | 12 | Grantham | 12:46.12 |
| 3 | 25 | Connie MILLNS | 12 | Co Lincoln P | 12:30.00 |
| 4 | 27 | Millie POOLE | 14 | Co Lincoln P | 12:30.00 |
| 5 | 26 | Tristan EKE | 13 | Co Lincoln P | 12:30.00 |
| 6 | 24 | Florence MONAGHAN | 12 | Lincoln TSA | 12:45.00 |
| 7 | 22 | Joshua KIM | 11 | Grantham | 12:46.12 |
| 8 | 20 | Skylar GLENDENNING | 12 | Corby | 13:00.00 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 29 | Miley RICHARDSON | 11 | Co Lincoln P | 12:21.25 |
| 2 | 31 | Leo BARNETT | 12 | Grantham | 12:20.55 |
| 3 | 33 | Callum LOYNES | 12 | Co Lincoln P | 12:15.00 |
| 4 | 35 | Lucas GOODWIN | 13 | Lincoln Vulc | 12:10.00 |
| 5 | 34 | Phoebe CHARMAN | 15 | Lincoln TSA | 12:14.31 |
| 6 | 32 | Henry WILLERTON | 11 | Skegness | 12:18.00 |
| 7 | 30 | Robyn STEEL | 11 | Co Lincoln P | 12:21.00 |
| 8 | 28 | Janna SCHUERCH | 14 | Co Lincoln P | 12:30.00 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 37 | Ethan HUNTER | 13 | Lincoln Vulc | 12:05.00 |
| 2 | 39 | Elisabeth KINNEAR | 14 | Grantham | 11:58.40 |
| 3 | 41 | Molly CRAUGHAN | 12 | Lincoln Vulc | 11:51.96 |
| 4 | 43 | Emilie WEBB | 14 | Grantham | 11:45.98 |
| 5 | 42 | Chelsea TODD | 14 | Lincoln Vulc | 11:46.92 |
| 6 | 40 | Daniel PEARSON | 36 | Boston | 11:55.55 |
| 7 | 38 | Freddie HIRST | 10 | Grantham | 12:00.00 |
| 8 | 36 | Poppy HATHWAY | 13 | Grantham | 12:06.41 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 45 | Grace HOWITT | 15 | Grantham | 11:43.72 |
| 2 | 47 | Robbie DUFF | 13 | Lincoln Vulc | 11:40.00 |
| 3 | 49 | Annabelle JAY | 12 | Grantham | 11:36.41 |
| 4 | 51 | Iris FRENCH | 14 | Lincoln Vulc | 11:26.29 |
| 5 | 50 | Lexie SHEWAN | 14 | Grantham | 11:26.68 |
| 6 | 48 | Eliza MULHOLLAND | 13 | Lincoln TSA | 11:37.55 |
| 7 | 46 | Dan PALMER | 11 | Co Lincoln P | 11:42.12 |
| 8 | 44 | Evie NEWMAN | 11 | Lincoln Vulc | 11:45.00 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 53 | Peyton BRIGHT | 13 | Lincoln Vulc | 11:10.00 |
| 2 | 55 | Emily HUNT | 14 | Lincoln Vulc | 11:08.84 |
| 3 | 57 | Ella BLACKBOURN | 16 | Lincoln Vulc | 11:07.15 |
| 4 | 59 | Ellena HOWITT | 13 | Grantham | 11:04.02 |
| 5 | 58 | Charlotte TURNER | 14 | Lincoln Vulc | 11:05.10 |
| 6 | 56 | Remi-leigh BERRY | 11 | Co Lincoln P | 11:08.12 |
| 7 | 54 | Maisie ASMAN | 14 | Lincoln Vulc | 11:08.88 |
| 8 | 52 | Oliver WILKINSON | 12 | Lincoln Vulc | 11:18.70 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 61 | Finley WEST | 13 | Co Lincoln P | 11:00.00 |
| 2 | 63 | Cole COOPER | 12 | Co Lincoln P | 11:00.00 |
| 3 | 65 | Isla SCOTT | 13 | Lincoln Vulc | 10:56.28 |
| 4 | 67 | Amy TAYLOR | 13 | Grantham | 10:43.15 |
| 5 | 66 | Oliver JONES | 15 | Lincoln Vulc | 10:52.82 |
| 6 | 64 | Eleanor BIRINY | 13 | Lincoln Vulc | 10:59.00 |
| 7 | 62 | Isla-Rose WILDISH | 10 | Retford | 11:00.00 |
| 8 | 60 | Zoe PARSONS | 15 | Lincoln TSA | 11:01.82 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 69 | Riley HAMER | 14 | Co Lincoln P | 10:30.00 |
| 2 | 71 | Maddison HODGIN | 14 | Co Lincoln P | 10:25.50 |
| 3 | 73 | Jessica - Rose DAVISON | 14 | Grantham | 10:17.76 |
| 4 | 75 | Isla GRAY | 14 | Grantham | 10:12.03 |
| 5 | 74 | Ben CARLYLE | 14 | Grantham | 10:16.65 |
| 6 | 72 | Amy PALMER | 13 | Co Lincoln P | 10:20.10 |
| 7 | 70 | Lucy WILLATTS | 12 | Grantham | 10:28.28 |
| 8 | 68 | Sophie MARSHALL | 19 | Co Lincoln P | 10:35.55 |
| Heat Number - 11 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 77 | Gareth COCKS | 35 | Co Lincoln P | 9:54.40 |
| 2 | 79 | Harry VICKERS | 16 | Lincoln Vulc | 9:51.94 |
| 3 | 82 | Jack HICKS | 14 | Lincoln Vulc | 9:40.54 |
| 4 | 84 | Hannah DODWELL | 30 | Co Lincoln P | 9:40.00 |
| 5 | 83 | Archie FRENCH | 15 | Lincoln Vulc | 9:40.12 |
| 6 | 80 | Emily TALKES | 12 | Lincoln Vulc | 9:51.61 |
| 7 | 78 | Elena ALDENHOFF-KELLY | 15 | Grantham | 9:54.18 |
| 8 | 76 | James HUCKLE | 12 | Lincoln Vulc | 10:02.40 |
| Heat Number - 12 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 86 | Grace MACDONALD | 15 | Grantham | 9:24.81 |
| 2 | 88 | Zach HOPKINSON | 15 | Grantham | 9:16.76 |
| 3 | 90 | Ryan NORTON | 17 | Boston | 9:15.17 |
| 4 | 92 | Owen HATHWAY | 18 | Grantham | 8:44.75 |
| 5 | 91 | Alexandra BULAT | 17 | Co Lincoln P | 9:11.60 |
| 6 | 89 | Jensen HYLTON | 16 | Co Lincoln P | 9:15.50 |
| 7 | 87 | Grace TURNER | 17 | Grantham | 9:24.40 |
| 8 | 85 | Daniel HEPPLESTONE | 14 | Co Lincoln P | 9:35.65 |