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| 1500 Metres (Standard: 4:40.00) |
| | 3:52.04 | | Luke Van Oudtshoorn (U18) | Aldershot, Farnham & District AC | Watford | 26 Jun | | |
| | 3:53.88 | | George Grassly | Dorking Mole Valley AC | Watford | 10 Jul | | |
| | 3:57.43 | 5 | Max Heyden | Aldershot, Farnham & District AC | Bedford | 23 Jun | | |
| | 3:58.8 | 1B | Harry Boyd | Guildford & Godalming AC | Guildford | 15 Jun | | |
| | 4:01.69 | | Marcus Shantry | Windsor, Slough, Eton & Hounslow AC | Watford | 29 May | | |
| | 4:02.6 | 1A | Aaron Enser | Bracknell AC | Chelmsford | 19 May | | |
| | 4:02.88 | 3 | Joe Blacknell (U18) | Aldershot, Farnham & District AC | Kingston | 11 May | | |
| | 4:03.81 | | Arlo Ludewick | Herne Hill Harriers | Coulsdon | 4 Sep | | |
| | 4:05.15 | 4 | Ben Fitzpatrick (U18) | Walton AC | Kingston | 11 May | | |
| | 4:08.4 | | Ben Marks (U18) | Walton AC | Walton | 5 May | | |
| | 4:09.22 | | Charlie Kershaw (U18) | Windsor, Slough, Eton & Hounslow AC | Watford | 29 May | | |
| | 4:09.73 | | Oliver Coppellotti (U18) | Walton AC | Watford | 29 May | | |
| | 4:10.29 | | Michael Cottrill (U18) | Walton AC | Watford | 24 Jul | | |
| | 4:10.78 | | Joshua Genco-Russo (U18) | Woking AC | Watford | 1 May | | |
| | 4:11.5 | 2A | Indy Barnes (U18) | Kingston AC & Polytechnic Harriers | Kingston | 30 Jun | | |
| | 4:14.5 | | Henry Fisher (U18) | Blackheath & Bromley Harriers AC | Eltham | 17 Jul | | |
| | 4:14.9 | | William Brockman | Aldershot, Farnham & District AC | Aldershot | 13 Jul | | |
| | 4:15.26 | 6 | Sam Barker | Hercules Wimbledon AC | Kingston | 11 May | | |
| | 4:16.7 | 1B | Eric Williams (U18) | Kingston AC & Polytechnic Harriers | Kingston | 30 Jun | | |
| | 4:16.96 | 8 | Prince Reid | Blackheath & Bromley Harriers AC | Kingston | 11 May | | |
| | 4:17.84 | 3 | Henry Silverstein | Hercules Wimbledon AC | Kingston | 8 Jun | | |
| | 4:18.32 | | Ethan Kendall (U18) | Aldershot, Farnham & District AC | Basingstoke | 15 Jun | | |
| | 4:20.3 | 2A | Nathan Janmohamed | Walton AC | Walton | 19 May | | |
| | 4.21.4 | 2B | Edward Dawson (U18) | Walton AC | Walton | 19 May | | |
| | 4:21.40 | | Matthew Clutterbuck | Windsor, Slough, Eton & Hounslow AC | Watford | 24 Jul | | |
| | 4:25.69 | 3B | Pavit Kullar (U18) | Windsor, Slough, Eton & Hounslow AC | Bromley | 28 Jul | | |
| | 4:26.47 | 3B | Lucas Boyt | Windsor, Slough, Eton & Hounslow AC | Reading | 15 Jun | | |
| | 4:26.7 | 3A | James Spencer | Woking AC | Brighton | 28 Jul | | |
| | 4:28.80 | 12 | Friso Kolff (U18) | Walton AC | Kingston | 11 May | | |
| | 4:28.9 | | Daniel Illis (U18) | Hercules Wimbledon AC | Wimbledon | 19 May | | |
| | 4.29.1 | 3B | Daniel Roffey (U18) | Epsom & Ewell Harriers | Walton | 19 May | | |
| | 4:29.12 | | Dario Kan | Sutton & District AC | Carshalton | 30 Mar | | |
| | 4:32.66 | 2A | Thomas Hardman (U18) | Guildford & Godalming AC | Perivale | 26 May | | |
| | 4:33.29 | | Ben Gillham (U18) | Sutton & District AC | Carshalton | 30 Mar | | |
| | 4:35.2 | | Humphrey Allen | Kingston AC & Polytechnic Harriers | Kingston | 30 Jun | | |
| | 4:35.90 | 3A | Adam Shew (U18) | Croydon Harriers | Perivale | 26 May | | |
| | 4:37.18 | 2A | Nicholas Ireland | Guildford & Godalming AC | Guildford | 30 Jun | | |
| | 4:37.74 | | Adam Coates (U18) | Epsom & Ewell Harriers | Basingstoke | 23 Jun | | |
| | 4:38.36 | | Nathan Fitzpatrick (U18) | Windsor, Slough, Eton & Hounslow AC | Eton | 19 May | | |