You are leaving the Heartland Credit Union web site. The subsequent web site is not operated by the credit union, and the credit union is not responsible for the content of the web site.
Your metabolism is based on how efficiently your body tissues process nutrition and so your metabolism should be great. If you're asking about causality, running more can improve your metabolism, but having a high metabolism rate does not mean you will be an excellent runner. I am an endomorph and my metabolism is naturally really bad, but after a couple years of training, I've become a pretty good runner and my metabolism has improved. I have friends though who have excellent metabolism but are terrible runners. You need stamina to run, not a good metabolism.
Having said that, fitness levels vary greatly when it comes to beginners. Josh Clark from Cool Running says a man who is in shape who typically runs 15 to 30 miles per week can expect to post a 10K time of about 48 minutes, while a woman will run the same distance in 58 minutes. Related Reading: The Average Time for Jogging a Half Marathon for Women.