Runner's Forum: Running in Forest Grove, OR

I go by santaannarain.net and I have a website, but that's not why I'm writing this. I started run on Arbor Day of this year. I'm 54  years old and until then I always said I'm a hiker NOT a runner. But I ran a ten K Arbor Day run and avearged 11 min miles. This was intruging. I decided to try running and have been talked into, cajoled really, the Portland Marathon. I'm really worried. I think this is way to far way to soon. Any comments? Should I just do it (tm) or walk the darn thing?

SLOR