I am a confused on the the for each of these races. In southern california everything for the most part is international distance but even the international distances vary. I just wanted to know what is the standard ruling for each race?
International & Oly are the same distance. Officially a 1.5K swim / 40K bike and 10k run.
Often times smaller races will call themselves an Oly even if their course is slightly different in actual distance.