| Bibno. | Participant | Category | Club/Company | Distance |
| 161 | Ifraz Mughal
Brighton Swimming Club
| (M) Veteran | Brighton Swimming Club | The Experience |
|
| Club/Company | Distance |
| Brighton Swimming Club | The Experience |
|
| 304 | Indigo Laing
Brighton Swimming Club
| (F) U18 | Brighton Swimming Club | The Race |
|
| Club/Company | Distance |
| Brighton Swimming Club | The Race |
|
| 184 | Isabel Rabey | (F) Senior | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 352 | Isabel Siddle
Shiverers
| (F) U18 | Shiverers | The Race |
|
| Club/Company | Distance |
| Shiverers | The Race |
|
| 1 | Ishtiaq Ahmed | (M) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 263 | Izzy Clark-Lovell
Brighton Swimming Club
| (F) U18 | Brighton Swimming Club | The Race |
|
| Club/Company | Distance |
| Brighton Swimming Club | The Race |
|
| 53 | Jack D'Albiac Brewin | (M) Senior | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 63 | Jack Diamond | (M) Senior | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 324 | Jack Nisbet | (M) Veteran | | The Race |
|
| Club/Company | Distance |
| - | The Race |
|
| 202 | Jack Savage | (M) Senior | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 333 | Jacqueline Patel
Kingscormarants
| (F) Veteran | Kingscormarants | The Race |
|
| Club/Company | Distance |
| Kingscormarants | The Race |
|
| 271 | Jacques Du Preez
Mid Sussex Marlins
| (M) Veteran | Mid Sussex Marlins | The Race |
|
| Club/Company | Distance |
| Mid Sussex Marlins | The Race |
|
| 126 | Jalia Kangave | (F) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 96 | James Graham | (M) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 22 | Jane Bradford | (F) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 365 | Jane Turner | (F) Veteran | | The Race |
|
| Club/Company | Distance |
| - | The Race |
|
| 240 | Jayne Westcott | (F) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 257 | Jen Brister
Brighton Swimming Club
| (F) Veteran | Brighton Swimming Club | The Experience |
|
| Club/Company | Distance |
| Brighton Swimming Club | The Experience |
|
| 224 | Jenni Tellyn | (F) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 70 | Jenny Dun | (F) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 113 | Jenny Holmes | (F) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 131 | Jenny Landreth | (F) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 180 | Jenny Preece
Brighton & Hove Women's Running Club
| (F) Veteran | Brighton & Hove Women's Running. | The Experience |
|
| Club/Company | Distance |
| Brighton & Hove Women's Running. | The Experience |
|
| 334 | Jeremy Pendlebury
Brighton Swimming Club
| (M) Veteran | Brighton Swimming Club | The Race |
|
| Club/Company | Distance |
| Brighton Swimming Club | The Race |
|
| 20 | Jessica Booth
Out to Swim
| (F) Veteran | Out to Swim | The Experience |
|
| Club/Company | Distance |
| Out to Swim | The Experience |
|
| 79 | Jessica Fernandes
Swim 1st Tri Club
| (F) Senior | Swim 1st Tri Club | The Experience |
|
| Club/Company | Distance |
| Swim 1st Tri Club | The Experience |
|
| 72 | Jill Dyson
Brighton Swimming Club
| (F) Veteran | Brighton Swimming Club | The Experience |
|
| Club/Company | Distance |
| Brighton Swimming Club | The Experience |
|
| 345 | Jill Rocky
Brighton Swimming Club
| (F) Veteran | Brighton Swimming Club | The Race |
|
| Club/Company | Distance |
| Brighton Swimming Club | The Race |
|
| 42 | Jo Coombs
Brighton Swimming Club
| (F) Veteran | Brighton Swimming Club | The Experience |
|
| Club/Company | Distance |
| Brighton Swimming Club | The Experience |
|
| 75 | Jo Elsden
Hove Hornets
| (F) Veteran | Hove Hornets | The Experience |
|
| Club/Company | Distance |
| Hove Hornets | The Experience |
|
| 142 | Jo Luckman | (F) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 193 | Jo Riches
Shoreham Beach Swimmers
| (F) Veteran | Shoreham Beach Swimmers | The Experience |
|
| Club/Company | Distance |
| Shoreham Beach Swimmers | The Experience |
|
| 205 | Jo Shaw | (F) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 247 | Joanna Wingate | (F) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 91 | Joanne Good | (F) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 64 | Joe Diamond | (M) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 273 | Joe Edwards
Swimtrek
| (M) Senior | Swimtrek | The Race |
|
| Club/Company | Distance |
| Swimtrek | The Race |
|
| 297 | Joe Jukes
Out to Swim
| - | Out to Swim | The Race |
|
| Club/Company | Distance |
| Out to Swim | The Race |
|
| 341 | John Rainford | (M) Senior | | The Race |
|
| Club/Company | Distance |
| - | The Race |
|
| 223 | John Tebbs
The Garden Edit
| (M) Veteran | The Garden Edit | The Experience |
|
| Club/Company | Distance |
| The Garden Edit | The Experience |
|
| 21 | Jonathan Bose | (M) Senior | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 318 | Joshua Mcminn
Mid Sussex Marlins
| (M) U18 | Mid Sussex Marlins | The Race |
|
| Club/Company | Distance |
| Mid Sussex Marlins | The Race |
|
| 83 | Julia Flynn | Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 248 | Julia Woodman | (F) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 291 | Justin Hyde
BTRS
| (M) Senior | BTRS | The Race |
|
| Club/Company | Distance |
| BTRS | The Race |
|
| 105 | Justine Harvey | (F) Veteran | | The Experience |
|
| Club/Company | Distance |
| - | The Experience |
|
| 212 | Justine Speck
Che Guillamene
| (F) Veteran | Che Guillamene | The Experience |
|
| Club/Company | Distance |
| Che Guillamene | The Experience |
|
| 58 | Karen Davitt
Che Guillamene
| (F) Veteran | Che Guillamene | The Experience |
|
| Club/Company | Distance |
| Che Guillamene | The Experience |
|
| 150 | Karly Martin
Tuff Fitty Triathlon Club
| (F) Veteran | Tuff Fitty Triathlon Club | The Experience |
|
| Club/Company | Distance |
| Tuff Fitty Triathlon Club | The Experience |
|
| 267 | Kate Dent | (F) Veteran | | The Race |
|
| Club/Company | Distance |
| - | The Race |
|
