EVENT 301 Open/Male 200m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 2 | Maximilian PETRAVICH | 12 | Team Luton | |
| 4 | 5 | Elijah UNSWORTH | 9 | Team Luton | |
| 5 | 3 | Alexei RADCHUK | 14 | Ealing | |
| 6 | 1 | Alidar KOZHAMZHAROV | 13 | Willesden | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | Jaiden AMUSA | 10 | Team Luton | |
| 2 | 9 | Harry SHEMMINGS | 11 | Epping For't | 4:30.00 |
| 3 | 11 | Harrison GORDGE | 10 | Flitwick | 4:00.90 |
| 4 | 13 | Mark KISS | 11 | Epping For't | 3:45.00 |
| 5 | 12 | Luke HANCOCK | 11 | Team Luton | 3:57.66 |
| 6 | 10 | Tyatt COLE | 10 | Bo Southend | 4:05.00 |
| 7 | 8 | Alexandru ZAHARIA | 10 | Ealing | |
| 8 | 6 | Christopher ROCHOWSKI | 9 | Linslade | |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 15 | Hari GILL | 10 | Ealing | 3:35.00 |
| 2 | 17 | Theo RAWNSLEY | 9 | Harpenden | 3:33.89 |
| 3 | 19 | Alexander ROCHOWSKI | 13 | Linslade | 3:32.55 |
| 4 | 21 | Kai DE JUAN ENGLUND | 12 | Epping For't | 3:30.00 |
| 5 | 20 | Kevin IRIMIA | 11 | Bletchley | 3:31.60 |
| 6 | 18 | Dexter CRANE | 13 | Flitwick | 3:33.85 |
| 7 | 16 | Elijah POWELL | 12 | Linslade | 3:34.88 |
| 8 | 14 | Huxley ANDREANOFF | 11 | Broomfield | 3:36.16 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 23 | Oscar MCILVANEY | 11 | Flitwick | 3:26.07 |
| 2 | 25 | Alexander MCKAY | 11 | Epping For't | 3:21.90 |
| 3 | 27 | Samuel FALLAHNIA | 12 | Epping For't | 3:17.06 |
| 4 | 29 | Patrick IANCU | 10 | Bo Southend | 3:08.00 |
| 5 | 28 | Arya ZOLFAGHARI | 12 | Epping For't | 3:15.88 |
| 6 | 26 | Guillaume TITOT | 14 | Epping For't | 3:18.97 |
| 7 | 24 | Daniel CHAMBERLAIN | 14 | Harpenden | 3:25.50 |
| 8 | 22 | Renwa ARIA | 13 | Epping For't | 3:28.39 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 31 | Arthur JUVILER-BACON | 10 | Linslade | 3:04.40 |
| 2 | 33 | David KANDELAKI | 13 | Linslade | 2:59.74 |
| 3 | 35 | Marcus XU | 13 | Linslade | 2:51.97 |
| 4 | 39 | Casey NDLOVU | 15 | Bo Southend | 2:49.70 |
| 5 | 37 | Theo TSANG | 12 | Ealing | 2:50.70 |
| 6 | 34 | Sam SMITH | 15 | Linslade | 2:56.05 |
| 7 | 32 | Cameron THACKRAH | 12 | Linslade | 3:03.00 |
| 8 | 30 | Jack MAY | 13 | Linslade | 3:05.20 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 41 | Joshua HOVELL | 13 | Ealing | 2:48.45 |
| 2 | 44 | Samuel CHILDS | 12 | Berkhamsted | 2:47.82 |
| 3 | 46 | Adithya BANGERA | 14 | Epping For't | 2:45.27 |
| 4 | 48 | George WORSFOLD | 15 | Linslade | 2:44.60 |
| 5 | 47 | Alexander THANASSOULAS | 14 | Willesden | 2:44.61 |
| 6 | 45 | Jamie WONG | 14 | Broomfield | 2:46.51 |
| 7 | 43 | Casper WHITTAKER | 12 | Biggleswade | 2:48.20 |
| 8 | 40 | Ayden ROUMILHAC | 13 | Willesden | 2:48.60 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 51 | Emet YAH-KHAI | 15 | Broomfield | 2:42.74 |
| 2 | 53 | Robert JAMES | 12 | Epping For't | 2:40.05 |
| 3 | 55 | George RHODES | 14 | Team Luton | 2:38.80 |
| 4 | 58 | Alfie WALSHE | 16 | Flitwick | 2:36.30 |
| 5 | 56 | Alexander BELNIKOFF | 15 | Epping For't | 2:38.22 |
| 6 | 54 | Dewi FORDYCE | 12 | Berkhamsted | 2:39.58 |
| 7 | 52 | Elijah FISHER | 14 | Linslade | 2:42.06 |
| 8 | 50 | Sami BOUKHTOUCHE | 12 | Ealing | 2:43.40 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 60 | Liam BAUTISTA | 16 | Epping For't | 2:35.29 |
| 2 | 62 | Owain ROBERTS | 16 | Team Luton | 2:34.10 |
| 3 | 64 | Kacper NOWOSIELSKI | 13 | Ealing | 2:32.30 |
| 4 | 66 | Daniel DE FILIPPO | 16 | Flitwick | 2:15.03 |
| 5 | 65 | Ben COUPLAND | 22 | Ealing | 2:27.57 |
| 6 | 63 | Joseph ELLIOTT | 16 | Flitwick | 2:33.71 |
| 7 | 61 | Oscar RABENSTEIN TOBBA | 14 | Ealing | 2:34.50 |
| 8 | 59 | Rafe LAWSON | 13 | Berkhamsted | 2:35.98 |