Open/Male - Long Course - 100m Freestyle - British - Open Age Group
| Rank | Name | Ranked Club | YoB | Meet Name | Venue | Level | Date | Time | FINA |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Matthew Richards | Millfield | 02 | World Aquatics Championships 2023 | Fukuoka, Japan | 1 | 27/07/23 | 47.45 | 963 |
| 2 | Duncan Scott | UniOfStirl | 97 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 47.92 | 935 |
| 3 | Thomas Dean | Bath Univ | 00 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 47.94 | 933 |
| 4 | Jacob Whittle | Bath Univ | 04 | Rotterdam Qualification Meet 2023 | Rotterdam | 1 | 30/11/23 | 48.03 | 928 |
| 5 | David Cumberlidge | Edinburgh Un | 96 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 48.16 | 921 |
| 6 | Alexander Cohoon | Lboro Uni | 02 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 48.20 | 918 |
| 7 | Lewis Burras | Repton | 00 | Rotterdam Qualification Meet 2023 | Rotterdam | 1 | 30/11/23 | 48.40 | 907 |
| 8 | Alexander Painter | Millfield | 04 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 48.44 | 905 |
| 9 | James Guy | Millfield | 95 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 48.68 | 891 |
| 10 | Jack McMillan | UniOfStirl | 00 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 48.75 | 888 |
| 11 | Edward Mildred | Bath Univ | 03 | European U23 Swimming Championships | Dublin | 1 | 13/08/23 | 48.90 | 879 |
| 12 | Dan Jones | Swansea Uni | 96 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 48.93 | 878 |
| 13 | Jordan Cooley | Leeds Uni | 99 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 48.94 | 877 |
| 14 | Calvin Fry | Lboro Uni | 04 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 49.09 | 869 |
| 15 | Joe Litchfield | Lboro Uni | 98 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 49.36 | 855 |
| 16 | Thomas Watkin | Millfield | 02 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 49.52 | 847 |
| 17 | Jamie Ingram | Co Manch Aq | 98 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 49.73 | 836 |
| 18 | Ben Cope | Co Sheffield | 01 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 49.82 | 832 |
| 19 | Gabriel Shepherd | Co Leeds | 08 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 49.85 | 830 |
| 20 | Evan Jones | UniOfStirl | 04 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 49.95 | 825 |
| 21 | Kieran Bird | Bath Univ | 99 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 49.98 | 824 |
| 22 | Thomas Carswell | Edinburgh Un | 00 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 50.00 | 823 |
| 23 | Matthew Ward | Bath Univ | 05 | British Summer Championships | Sheffield | 1 | 26/07/23 | 50.11 | 817 |
| 24 | Cameron Kurle | Millfield | 97 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 50.13 | 816 |
| 25 | Cameron Brooker | Bath Univ | 02 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 50.14 | 816 |