EVENT 301 Men/Women 10 Yrs/Over 800m Free. - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Molly CRAUGHAN | 11 | Lincoln Vulc | 14:00.00 |
| 3 | 2 | Miley RICHARDSON | 10 | Lincoln Vulc | 14:00.00 |
| 4 | 3 | Florence HENDERSON | 10 | Lincoln Vulc | 14:00.00 |
| 5 | 4 | Angelina BALLARD | 11 | Lincoln Vulc | 14:00.00 |
| 6 | 5 | Ethan DERBY | 13 | Lincoln Vulc | 13:34.50 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Thomas KINNEAR | 12 | Grantham | 13:30.00 |
| 2 | 7 | George LEONARD | 11 | Grantham | 13:30.00 |
| 3 | 8 | Bobby WALLIS | 10 | Co Lincoln P | 13:30.00 |
| 4 | 9 | Finley WEST | 12 | Co Lincoln P | 13:30.00 |
| 5 | 10 | Callum LOYNES | 11 | Co Lincoln P | 13:30.00 |
| 6 | 11 | Annabelle JAY | 11 | Grantham | 13:15.00 |
| 7 | 12 | Elliot GLEAVE | 10 | Grantham | 13:15.00 |
| 8 | 13 | Eliza MULHOLLAND | 12 | Lincoln TSA | 13:02.72 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Stanley THURLOW | 11 | Lincoln Vulc | 13:00.00 |
| 2 | 15 | Leo BARNETT | 11 | Grantham | 13:00.00 |
| 3 | 16 | Ben CARLYLE | 13 | Grantham | 12:57.64 |
| 4 | 17 | Chelsea TODD | 13 | Lincoln Vulc | 12:56.53 |
| 5 | 18 | Ellena HOWITT | 12 | Grantham | 12:51.52 |
| 6 | 19 | Oscar DURANT | 12 | Grantham | 12:48.19 |
| 7 | 20 | Lucy WILLATTS | 12 | Grantham | 12:48.14 |
| 8 | 21 | Ava MACKFALL | 13 | Lincoln Vulc | 12:47.30 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 22 | Emilija IVANOVA | 14 | Boston | 12:46.56 |
| 2 | 23 | Luca HALLAM | 11 | Grantham | 12:45.00 |
| 3 | 24 | Elisabeth KINNEAR | 13 | Grantham | 12:45.00 |
| 4 | 25 | Poppy HATHWAY | 12 | Grantham | 12:45.00 |
| 5 | 26 | Annie WEBSTER | 11 | Grantham | 12:45.00 |
| 6 | 27 | Isla SCOTT | 12 | Lincoln Vulc | 12:35.80 |
| 7 | 28 | Amy TAYLOR | 12 | Grantham | 12:32.81 |
| 8 | 29 | Charlotte TURNER | 13 | Lincoln Vulc | 12:32.09 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 30 | Oliver WILKINSON | 11 | Lincoln Vulc | 12:30.00 |
| 2 | 31 | Remi-leigh BERRY | 10 | Co Lincoln P | 12:30.00 |
| 3 | 32 | Daniel PEARSON | 35 | Boston | 12:26.07 |
| 4 | 33 | Sascha NEL | 13 | Grantham | 12:20.00 |
| 5 | 34 | Luke DAYBELL | 14 | Grantham | 12:17.95 |
| 6 | 35 | Kenzie HEMSTOCK-NORRIS | 12 | Ripley | 12:15.21 |
| 7 | 36 | Isobel ALLSOP | 13 | Grantham | 12:15.00 |
| 8 | 37 | Isla GRAY | 13 | Grantham | 12:15.00 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 38 | Jessica-Rose DAVISON | 14 | Grantham | 12:14.28 |
| 2 | 39 | Oliver GARNER | 13 | Co Lincoln P | 12:12.46 |
| 3 | 40 | Iris FRENCH | 13 | Lincoln Vulc | 12:09.10 |
| 4 | 41 | Lexie SHEWAN | 13 | Grantham | 12:00.42 |
| 5 | 42 | Emma ARTHUR | 15 | Co Lincoln P | 12:00.00 |
| 6 | 43 | Libby BUNN | 15 | Boston | 11:58.78 |
| 7 | 44 | Lucy TONGUE | 12 | Ripley | 11:55.21 |
| 8 | 46 | Erin ARCHER | 12 | Co Lincoln P | 11:45.00 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 47 | Grace HOWITT | 14 | Grantham | 11:43.72 |
| 2 | 48 | Lea HILAROWICZ | 15 | Co Lincoln P | 11:42.42 |
| 3 | 49 | Alice ROBINSON | 13 | Co Cambridge | 11:40.00 |
| 4 | 50 | Aydrian COPE | 14 | Ripley | 11:35.22 |
| 5 | 51 | Daisy ANTON | 13 | Ripley | 11:30.21 |
| 6 | 52 | Maisie ASMAN | 13 | Lincoln Vulc | 11:30.00 |
| 7 | 53 | Emily HUNT | 13 | Lincoln Vulc | 11:30.00 |
| 8 | 54 | Ella BLACKBOURN | 15 | Lincoln Vulc | 11:30.00 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 55 | Dan PALMER | 10 | Co Lincoln P | 11:30.00 |
| 2 | 56 | Charlotte JENKINSON | 13 | Deepings | 11:30.00 |
| 3 | 57 | Brooke HEMMINGS | 14 | Lincoln Vulc | 11:30.00 |
| 4 | 59 | Maddison HODGIN | 13 | Co Lincoln P | 11:27.42 |
| 5 | 60 | Amelia HATHWAY | 14 | Grantham | 11:24.54 |
| 6 | 61 | Zoe PARSONS | 14 | Lincoln TSA | 11:19.92 |
| 7 | 62 | Lucy LOVETT | 16 | Lincoln Vulc | 11:19.85 |
| 8 | 63 | Harriet MCCORMACK | 13 | Grantham | 11:17.27 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 64 | Sophie WARD | 14 | Grantham | 11:16.40 |
| 2 | 66 | James HUCKLE | 11 | Lincoln Vulc | 11:14.17 |
| 3 | 67 | Megan LAMB | 14 | Lincoln Vulc | 11:13.03 |
| 4 | 68 | Anna SIMMONS | 15 | Lincoln Vulc | 11:06.82 |
| 5 | 69 | Saffron SANDS | 15 | Ripley | 11:02.10 |
| 6 | 70 | Tate FOX | 12 | Bircotes SC | 11:00.70 |
| 7 | 71 | William BURDOCK | 14 | Deepings | 11:00.00 |
| 8 | 72 | Abigail BETTS | 13 | Bircotes SC | 10:58.10 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 73 | Sophie MARSHALL | 18 | Co Lincoln P | 10:57.64 |
| 2 | 75 | Stansie CROWE | 12 | Bircotes SC | 10:55.19 |
| 3 | 76 | Benjamin DERBY | 14 | Lincoln Vulc | 10:45.58 |
| 4 | 77 | Amy PALMER | 12 | Co Lincoln P | 10:41.07 |
| 5 | 78 | Rosie STONE | 16 | Ripley | 10:37.50 |
| 6 | 79 | Samuel POTTER | 13 | Bircotes SC | 10:35.50 |
| 7 | 81 | Jack HICKS | 13 | Lincoln Vulc | 10:30.00 |
| 8 | 82 | Amelia MAHONEY | 15 | Co Coventry | 10:30.00 |
| Heat Number - 11 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 83 | Megan BROWN | 13 | Grantham | 10:29.37 |
| 2 | 84 | Liv SPENCER | 17 | Lincoln Vulc | 10:26.06 |
| 3 | 85 | Harry VICKERS | 15 | Lincoln Vulc | 10:25.40 |
| 4 | 86 | Rosie HICKS | 16 | Lincoln Vulc | 10:21.25 |
| 5 | 87 | Gracie-May COLE | 15 | Co Lincoln P | 10:19.26 |
| 6 | 88 | Daniel HEPPLESTONE | 13 | Co Lincoln P | 10:15.55 |
| 7 | 89 | Archie FRENCH | 14 | Lincoln Vulc | 10:14.38 |
| 8 | 90 | Morgan FARRAR | 14 | Co Lincoln P | 10:12.01 |
| Heat Number - 12 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 91 | Zara DIXON | 15 | Co Lincoln P | 10:07.15 |
| 2 | 92 | Evelyn JACKSON | 15 | Lincoln Vulc | 10:06.06 |
| 3 | 93 | James CASH | 13 | Deepings | 10:01.40 |
| 4 | 94 | Thomas HEPPLESTONE | 17 | Co Lincoln P | 10:00.00 |
| 5 | 95 | Oliver SHEPHERD | 14 | Deepings | 10:00.00 |
| 6 | 96 | Elena ALDENHOFF-KELLY | 14 | Grantham | 9:59.70 |
| 7 | 97 | Daniel DEGNAN | 15 | Grantham | 9:58.95 |
| 8 | 98 | Jack SMITH | 13 | Co Leicester | 9:58.03 |
| Heat Number - 13 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 101 | Charlotte HODGIN | 15 | Co Lincoln P | 9:49.58 |
| 2 | 104 | Jacob FISH | 14 | Grantham | 9:45.67 |
| 3 | 107 | Jacob BRIERS | 15 | Deepings | 9:30.00 |
| 4 | 110 | Owen HATHWAY | 17 | Grantham | 8:44.75 |
| 5 | 109 | Alexandra BULAT | 16 | Co Lincoln P | 9:13.21 |
| 6 | 105 | Zach HOPKINSON | 14 | Grantham | 9:32.32 |
| 7 | 103 | Jensen HYLTON | 15 | Co Lincoln P | 9:46.33 |
| 8 | 100 | Gareth COCKS | 34 | Co Lincoln P | 9:50.00 |