Silicon Valley Kid's Triathlon

Offering various distances for boys and girls in age groups 8 and under, 9-10, 11-12, and 13-14 years old.
http://www.svtriclub.org/svkt/

Little Dreams Foundation: Track and Field - Triathlon

Introduces some of the greats of the sport and identifies skills kids must develop in order to participate in this event.
http://www.littledreamsfoundation.com/new/en/worlds/tracknfield/triathlon/intro.htm