| Bibno. | Participant | Category | Distance |
|---|---|---|---|
| 230 | Team No Sweat | Mixed Relay | Olympic |
| 231 | Team North Highland 1 | Mixed Relay | Olympic |
| 232 | Team North Highland 2 | (F) Female Relay | Olympic |
| 233 | Team North Highland 3 | Mixed Relay | Olympic |
| 234 | Team North Highland 4 | Mixed Relay | Olympic |
| 235 | Team Northern Peasants Tri 2 | Mixed Relay | Olympic |
| 236 | Team One Third Geordie | Mixed Relay | Olympic |
| 397 | Team Pretty Tough | (F) Relay | Olympic |
| 267 | Team Rachel's Fishes | Relay | GenSmile |
| 237 | Team Rolly Pollies | Mixed Relay | Olympic |
| 238 | Team Rpm 2018 | (F) Female Relay | Olympic |
| 268 | Team Savernake Dentists | Relay | GenSmile |
| 239 | Team Sjs | (F) Female Relay | Olympic |
| 200 | Team Snail | Relay | Sprint |
| 240 | Team Sodexo Dream Team 1 | Mixed Relay | Olympic |
| 241 | Team Sodexo Dream Team 2 | Mixed Relay | Olympic |
| 242 | Team Sodexo Dream Team 3 | Mixed Relay | Olympic |
| 269 | Team Struck By Whitening | Relay | GenSmile |
| 243 | Team Tea Be Dee | (M) Male Relay | Olympic |
| 202 | Team The 3 Marketears! | Relay | Sprint |
| 251 | Team The Clark Crewe | Mixed Relay | Olympic |
| 270 | Team The Gernsmile Lads | Relay | GenSmile |
| 252 | Team The Hall Practice | (M) Male Relay | Olympic |
| 203 | Team The Little Mermaids | Relay | Sprint |
| 204 | Team The Stagg And The Greek | Relay | Sprint |
| 253 | Team The Woodford Wonders | Mixed Relay | Olympic |
| 271 | Team Tri Anything Once | Relay | GenSmile |
| 254 | Team Tri Hard | (M) Male Relay | Olympic |
| 272 | Team Tri Harder | Relay | GenSmile |
| 255 | Team Tri Pod Racing | (M) Male Relay | Olympic |
| 256 | Team Trtc | Mixed Relay | Olympic |
| 257 | Team Trtc A | Mixed Relay | Olympic |
| 258 | Team Trtc Pain Train | Mixed Relay | Olympic |
| 259 | Team Try Harder | (M) Male Relay | Olympic |
| 260 | Team Trying | Mixed Relay | Olympic |
| 261 | Team Tttri | Mixed Relay | Olympic |
| 201 | Team Tuna | Mixed Relay | Sprint |
| 250 | Team Webb | Mixed Relay | Olympic |
| 351 | Tee Vonzee | (F) 35-39 | Olympic |
| 400 | Terry Smith | (M) 45-49 | Olympic |
| 1115 | Terry Smith | (M) 45-49 | Olympic |
| 51 | Theo Robinson | (M) TriStar 3 | Kids |
| 1332 | Theresa Guermellou | (F) 45-49 | Sprint |
| 1221 | Therese Axelsson | (F) 30-34 | Olympic |
| 37 | Thomas Brooks | (M) TriStar 3 | Kids |
| 31 | Thomas Evans | (M) TriStar 3 | Kids |
| 43 | Thomas Heath | (M) TriStar 3 | Kids |
| 807 | Thomas Ormston | (M) 30-34 | Olympic |
| 1273 | Thomas Richards | (M) Youth | Sprint |
| 1191 | Tiffany Georghiades | (F) 25-29 | Olympic |
