| Bibno. | Participant | Category | Country | Distance |
|---|---|---|---|---|
| 237 | Guy Fraser | (M) Senior |  | Triathlon |
| 42 | Guy Linch | - | | Triathlon |
| 413 | Hamayoun Azizzada | (M) Veteran40 | | 10k |
| 396 | Hannah Fothergill | (F) Senior | | 10k |
| 287 | Hannah Sharp | (F) Senior | | 5k |
| 382 | Hannah Straker | (F) Senior | | 10k |
| 236 | Harry Blathwayt | (M) Senior | | Triathlon |
| 142 | Haukur Heimisson | (M) Senior | | Triathlon |
| 256 | Heather Farr | (F) Senior | | 5k |
| 173 | Heather Mayer | (F) Senior | | Triathlon |
| 289 | Heather Palmer | (F) Veteran50 | | 5k |
| 310 | Hein Marais | (M) Veteran40 | | 5k |
| 410 | Helen Jones-Totays | (F) Veteran40 | | 10k |
| 456 | Henry Smith | (M) Senior | | Triathlon |
| 193 | Herve Vignalou | (M) Veteran40 | | Triathlon |
| 39 | Honoria Morgan | - | | Triathlon |
| 398 | Howard Zabell | (M) Veteran40 | | 10k |
| 44 | Huw Roberts | - | | Triathlon |
| 451 | Ian Baker | (M) Veteran40 | | Triathlon |
| 5 | Ian Madelin | (M) Veteran40 | | Triathlon |
| 320 | Ian Smith | (M) Veteran40 | | 5k |
| 182 | Iliya Slavchev | (M) Senior | | Triathlon |
| 160 | Jack Woolgar | (M) Senior | | Triathlon |
| 242 | Jaclyn Curley | (F) Senior | | Triathlon |
| 386 | Jacqueline Hawkins | (F) Veteran40 | | 10k |
| 363 | Jade Rabjohn | (F) Senior | | 10k |
| 66 | James Bassett-Cross | (M) Senior | | Triathlon |
| 393 | James Bourke | (M) Veteran40 | | 10k |
| 326 | James Bruce | (M) Senior | | 5k |
| 234 | James Devereux | (M) Veteran40 | | Triathlon |
| 54 | James Keen | (M) Veteran40 | | Triathlon |
| 162 | James Nellany | (M) Senior | | Triathlon |
| 76 | James Sykes | (M) Senior | | Triathlon |
| 199 | James Thomas | (M) Senior | | Triathlon |
| 197 | Janice Nieuwoudt | (F) Senior | | Triathlon |
| 100 | Jason Bolger | (M) Veteran40 | | Triathlon |
| 296 | Jason Southwell | (M) Veteran40 | | 10k |
| 362 | Jen Burke | (F) Senior | | 10k |
| 420 | Jessica Prendergast | (F) Senior | | 10k |
| 17 | Jessica Wills | (F) Veteran40 | | Triathlon |
| 278 | Jim Rankin | (M) Veteran50 | | 5k |
| 12 | Jo Cox | (F) Senior | | Triathlon |
| 68 | Joanne Sexton | (F) Senior | | Triathlon |
| 300 | Joe Canning | (M) Senior | | 5k |
| 45 | Joe Smith-Morgan | - | | Triathlon |
| 164 | Johan Olivier | (M) Senior | | Triathlon |
| 189 | John Charlton | (M) Senior | | Triathlon |
| 406 | John Day | (M) Veteran50 | | 10k |
| 79 | John Kendrick | (M) Senior | | Triathlon |
| 9 | John O'connor | (M) Senior | | Triathlon |
