Competing in my first dualathalon this weekend.

I am looking forward to it but a bit nervous. I have been running a lot but haven't done any biking. I just want to compete and finish. It is a 2 mile run 10 mile bike and 2 mile run. Short distances so I should be able to pull it off. We have to use a mountain bike so it should be interesting. I haven't done one in years and hope to do more this season. I also want to start competing in some triathalons though I hate the swimming!!