Quote Originally Posted by teigyr View Post
michelem, I was going to say to go for it so I'm glad you are

Me too!

CIM is a good first marathon (it was my second), and you're halfway there. Definitely talk to a coach, but s/he will likely tell you to increase your distance gradually to a long ride in the 20 - 24 mile range 2 weeks before the event. Barring injury (almost always the limiter for runners), you should have no problem!