|
300 Metres (Standard: 44.00) |
| 35.96 | | Joshua Pearson | Windsor, Slough, Eton & Hounslow AC | Bedford | 27 Aug | | |
| 36.31 | | Rory Payn | Sutton & District AC | Gateshead | 9 Jul | | |
| 36.54 | | Israel Ospina | Croydon Harriers | Gateshead | 9 Jul | | |
| 37.5 | | Peter Sinclair | Guildford & Godalming AC | Coulsdon | 10 Jul | | |
| 37.6 | | Thomas Handley | Camberley & District AC | Walton | 16 Jul | | |
| 38.0 | | Sam Bishop | Walton AC | Walton | 8 May | | |
| 38.0 | | Tom Oswald | Hercules Wimbledon AC | Tooting Bec | 26 Jun | | |
| 38.38 | | Adam Coates | Epsom & Ewell Harriers | Ashford | 13 Aug | | |
| 39.58 | | Nicholas Hamilton | Belgrave Harriers | Battersea Park | 19 Jun | | |
| 39.8 | | Guy Francis | Epsom & Ewell Harriers | Coulsdon | 10 Jul | | |
| 40.1 | | Jack Broughton | Reigate Priory AC | Woking | 16 Jul | | |
| 40.1 | | Joseph Foster | Camberley & District AC | Basingstoke | 21 Aug | | |
| 40.16 | 6 | Sam Holder | Guildford & Godalming AC | Kingston | 14 May | | |
| 40.19 | 6 | Joe Jenner | Reigate Priory AC | Kingston | 11 Jun | | |
| 40.3 | | George Asprey | Aldershot, Farnham & District AC | Hillingdon | 5 Jun | | |
| 40.3 | | Luke Mann | Camberley & District AC | Aldershot | 10 Jul | | |
| 40.58 | | Nick Stephenson | Belgrave Harriers | Battersea Park | 19 Jun | | |
| 40.7 | | Luca Fassio | Holland Sports AC | Coulsdon | 10 Jul | | |
| 40.80 | 2h3 | Daniel Roffey | Epsom & Ewell Harriers | Kingston | 14 May | | |
| 40.8 | | Jack Dickson | Kingston AC & Polytechnic Harriers | Kingston | 19 Jun | | |
| 40.8 | | Matthew Amanor-Boadu | Sutton & District AC | Coulsdon | 10 Jul | | |
| 40.9 | | Tom Blamey | Guildford & Godalming AC | Guildford | 5 Jun | | |
| 40.93 | | Enivalde Ventura | Herne Hill Harriers | Tooting Bec | 23 Jul | | |
| 41.0 | | Tom Cursons | Walton AC | Walton | 16 Jul | | |
| 41.2 | | Oscar Millard | Herne Hill Harriers | Hornchurch | 19 Jun | | |
| 41.3 | | Ethan Kendall | Camberley & District AC | Guildford | 5 Jun | | |
| 41.8 | | Miles Davis | Camberley & District AC | Kingston | 19 Jun | | |
| 41.9 | | Louis Smithen | Croydon Harriers | Tooting Bec | 21 May | | |
| 41.90 | | Andrew Sarpong | Hercules Wimbledon AC | Tooting Bec | 23 Jul | | |
| 42.0 | | Tyler Simms | Holland Sports AC | Coulsdon | 10 Jul | | |
| 42.1 | | Adrian Panton | Croydon Harriers | Hornchurch | 19 Jun | | |
| 42.1 | | Joshua Taylor | Walton AC | Coulsdon | 10 Jul | | |
| 42.2 | | Adedeji Lawal | Sutton & District AC | Walton | 8 May | | |
| 42.6 | | Mats Lindstrom | Guildford & Godalming AC | Coulsdon | 10 Jul | | |
| 42.65 | | Joseph Eves | Aldershot, Farnham & District AC | Basingstoke | 2 Apr | | |
| 42.7 | | Mark Rodrigues | Kingston AC & Polytechnic Harriers | Tooting Bec | 26 Jun | | |
| 42.7 | | Jude Pearson | Herne Hill Harriers | Coulsdon | 10 Jul | | |
| 42.8 | | Joshua Sewell | Herne Hill Harriers | Hornchurch | 19 Jun | | |
| 42.8 | | Dylan Spencer | Woking AC | Horsham | 19 Jun | | |
| 43.0 | | Ben Marks | Walton AC | Walton | 8 May | | |
| 43.0 | | Edward Dawson | Walton AC | Walton | 8 May | | |
| 43.02 | 5h2 | Lewis Chouls | Epsom & Ewell Harriers | Kingston | 14 May | | |
| 43.1 | | Jacob Stadie | Woking AC | Woking | 16 Jul | | |
| 43.2 | | Reece Ferris | Guildford & Godalming AC | Reading | 11 Sep | | |
| 43.3 | | Mackenzie Laban | Herne Hill Harriers | Tooting Bec | 21 May | | |
| 43.3 | | Nathan Fitzpatrick | Aldershot, Farnham & District AC | Hillingdon | 5 Jun | | |
| 43.3 | | Luke Sears | Camberley & District AC | Woking | 12 Jun | | |
| 43.5 | | Olly Wilson | Kingston AC & Polytechnic Harriers | Coulsdon | 10 Jul | | |
| 43.7 | | Carvel Okesola | Epsom & Ewell Harriers | Walton | 8 May | | |
| 43.8 | | Max Chitty | Aldershot, Farnham & District AC | Winchester | 17 Apr | | |