| # | Võistleja | Triatlonide arv | Isiklik rekord | Esimene maraton | Viimane maraton |
|---|---|---|---|---|---|
| 341 | Alar Alajaan, 1979 | 1 | |||
| 342 | Alar Ervin, 1993 | 1 | |||
| 343 | Alar Mihhailov, 1987 | 1 | |||
| 344 | Alar Siemann, 1973 | 1 | |||
| 345 | Alari Kasemaa, 1970 | 1 | |||
| 346 | Alberto Eugenio Casillas Garcia | 1 | |||
| 347 | Alejandro Sánchez Palomero | 1 | |||
| 348 | Aleks Homin, 2006 | 1 | |||
| 349 | Aleks Loonurm, 1981 | 1 | |||
| 350 | Aleksandar Strandev | 1 |
