I would agree with Monty on the start year, and that National Championship in October of 1982 in Malibu. I would say 1983 was the first complete year that had a lot of races with prize money, and companies were offering sponsorships with stipends, performance bonuses and photo incentives for print media, which I would wager has gone the way of the dinosaur.
Ask anyone who was at that Malibu race. The surf has never been as big at any other triathlon. No wetsuits, cold water, 1/3 of the field was pulled either due to near drownings or hypothermia.
Emilio De Soto II
Maker of triathlon clothing, T1 Wetsuits, & Saddle Seat Pads and AXS since 1990
emilio@desotosport.com http://www.desotosport.com