I am a 23 year old from Chicago, and I want to run in the Chicago marathon next year. I've never run a marathon before. I have run seriously but off and on since high school. I recently started running a lot more, and more consistently.
What long-term training framework should I follow? So far, I've been doing all my running at the Boston qualifying pace (7:15 minute mile). I started with a 4-miler, and added a mile each time I ran. Today I reached a 13-miler. I plan to continue adding a mile to my successive runs and hope to be comfortable running a marathon in 3:10 around February. I hope this accumulation of miles at a constant pace will give me a good base to train off of.
Any advice on what the next step should be once I have the endurance to run a marathon in 3:10? I'm not looking to be a professional, and I know that is impossible for me, but I want to be competitive at Boston.