Most mountain bikers ride for the fun and the exercise but then you have those who want to take it to the next level and get into racing to satisfy their competitive urges. Maybe you are one of those people who want to take your
Strava competition to the next level and try out some head to head racing. This way you can see how your speed skills compare to other riders besides your friends.
There are not too many places that you can go do mountain bike races in the Southern California area but if you want to give it a shot then you should check out the PedalFest race in Castaic, CA which is just a little north of Valencia. This location is pretty central to many areas such as Los Angeles and Ventura County so it's not too much of a drive to get there. Plus the races don't start super early so you don’t have to worry about losing too much sleep trying to get there on time.
The PedalFest series allows you to race for points and place in the series or just race for the fun of it and not have to race all the races. There is an entry fee of $30 per race and $5 for a number plate with the transponder built in which lets them know when you cross the finish line on each lap. You get to keep the number plate to use for your next race. If you register for the entire season it works out to be $25 per race but there is a limit of 150 people to get this discounted rate.