- Norma Bastidas
- 4983 kilometre(s)
- United States (Washington, D.C.)
The longest triathlon is 152.1 km swimming, 3692.2 km cycling and 1138.7 km running, and was achieved by Norma Bastidas (Mexico/Canada) from 7 March 2014 to 4 May 2014.
Norma undertook this challenge in support of iEmpathize, a non-profit organisation dedicated to fighting sexual abuse and human trafficking.