I am a beginner and wants to race. I would love it if someone could point me in a direction to where i can sign up and try my hand at racing. I would also love it if some one can show me where racing trails are located in and around San Diego so I could ride them and gauge if i could do them or not. Also how long do most rides last?
Andrew, there's no such thing as a "racing trail," per se. There are just parks, with trails. Piece the trails together, and you get a course. But San Diego doesn't have any x-country races (or none that I'm aware of).
Instead of looking for a race course, try going to where a lot of x-country racers train in the San Diego area -- Noble Canyon, Mt. Laguna, Cuyamaca -- and see if you can stay on your bike for a couple of hours.
Another good gauge is to go out to Mission Trails and ride up every hill you can find (Jackson, Portabello, S-curves, and others), and see how you feel. A couple of hours at Mission Trails would equal a Beginner course at most races.
Just did the Racers and Chasers in Vail Lake event. It was super fun and a lot of good people there I will definitely do it again sometime. Also i learned that for me it is better to not eat anything if i am running late then to go to McDonald's. The start of the race really sucked but about half way I started to feel better and started to ride better.