| (1) | 11.9 | Clayton Mytil | (Herne Hill Harriers) | Bedford | 16.07.2017 |
| (2) | 11.95/+1.6 | Hayden Christian | (Woking AC) | Carshalton | 8.09.2018 |
| (3) | 12.0 | Daniel Davis | (Sutton & District AC) | Battersea Pk | 19.08.2000 |
| | 12.0 | Xander Collins | (Croydon Harriers) | Croydon | 16.07.2016 |
| | 12.0 | William Odgers | (Camberley & District AC) | Bournemouth | 17.06.2018 |
| (6) | 12.1 | Oliver Kitto | (Guildford & Godalming AC) | Worthing | 18.07.2010 |
| | 12.1 | Sawa Yamakawa | (Walton AC) | Croydon | 15.07.2012 |
| | 12.1 | Callum Holder | (Reigate Priory AC) | Carshalton | 19.07.2014 |
| (9) | 12.16/+0.7 | Jordan Otu | (Croydon Harriers) | Croydon | 19.07.2009 |
| (10) | 12.17/+1.1 | Dante Clarke | (Herne Hill Harriers) | Carshalton | 8.09.2018 |
| (11) | 12.2 | Capre Cole | (Croydon Harriers) | Croydon | 15.07.2012 |
| | 12.2 | Max Orchard | (Reigate Priory AC) | Carshalton | 15.08.2021 |
| (13) | 12.22/+0.7 | Ryan Gondoh | (Croydon Harriers) | Croydon | 19.07.2009 |
| (14) | 12.30/+1.6 | Sean Rafique | (Windsor, Slough, Eton & Hounslow AC) | Birmingham | 5.09.2010 |
| (15) | 12.33/+0.2 | Jonah Dykes | (Camberley & District AC) | Kingston | 27.07.2008 |
| (16) | 12.4 | Andre Thomas Richards | (Herne Hill Harriers) | Battersea Pk | 31.07.2005 |
| | 12.4 | Jaden Jones | (Croydon Harriers) | Walton | 21.07.2013 |
| | 12.4 | Meikhi Hemans | (Croydon Harriers) | Walton | 21.07.2013 |
| | 12.4 | Ethan Phillips | (Croydon Harriers) | Bedford | 16.07.2017 |
| | 12.4 | Dwayne Francis | (Herne Hill Harriers) | Walton | 8.07.2018 |
| (21) | 12.44/-1.1 | Daniel Dixon | (Camberley & District AC) | Swindon | 21.05.2023 |
| (22) | 12.5 | Alistair Platt | (Guildford & Godalming AC) | Coulsdon | 10.07.2016 |
| | 12.5 | Xola Dotting | (Croydon Harriers) | Walton | 8.07.2018 |
| (24) | 12.56 | Micah St James | (Croydon Harriers) | Mile End | 19.05.2024 |
| (25) | 12.6 | Nathan Flowers | (Herne Hill Harriers) | Battersea Pk | 3.08.2003 |
| | 12.60 | Harvey Marchant | (Aldershot, Farnham & District AC) | Aldershot | 21.07.2013 |
| | 12.6 | Liam MacDonald | (Kingston AC & Polytechnic Harriers) | Coulsdon | 10.07.2016 |
| | 12.6 | Henry Thomas | (Croydon Harriers) | Tooting Bec | 19.05.2018 |
28 athletes with performances of 12.60 or better. |
| Other marks |
| | 12.14w/+2.3 | Max Orchard | (Reigate Priory AC) | Carshalton | 11.09.2021 |
| | 12.24w/+2.3 | Marlon Fossey | (Kingston AC & Polytechnic Harriers) | Carshalton | 10.09.2011 |
