While searching for my results from a tri I did 7 years ago I came across www.athlinks.com. Not only did it have my results from that race, but it also has almost every road race i've run (of all distances), and several other tri's.
I thought I'd pass the website along ,as i'm assuming there are some others like me who like playing with the numbers!
I am newer to triathlon than running so I'm not sure how extensive this database captures tri's (over running), but I'm curious to know.
Yes, quite a few of us have profiles there collecting our race results together. The results are pretty all-encompassing. I've never done a race that wasn't incorporated into their search engines. Even the DC Training Triathlons end up in their results. I would say that's pretty thorough data.
I discovered that one recent race was not on the site (a 5K in D.C. last fall), but there's a form we can use to add new races. Once they verify the race and the results, they are supposed to add the results to the database.