When you're making a training plan for a marathon, here are some important things to think about:

1. How Long is the Training Plan?
   A regular marathon training plan usually takes about 16 to 20 weeks. That's a little over 4 months!

2. Weekly Running Distance:

   • If you’re a beginner, you might start by running 15 to 20 miles each week.
   • If you have some experience, you might run 30 to 40 miles a week.
   • For very experienced runners, it could be 40 to 60 miles every week.

3. Peak Weeks:

   • You want to have one week where you run a lot, about 20-30% of your total training miles.
   • For example, if your highest goal is to run 50 miles in a week, then in your peak week, you should aim for about 15 miles.

4. Long Runs:

   • Make sure to include at least one long run of 18 to 20 miles every 2 to 3 weeks.

By keeping track of these things, you can improve your running skills and lower the chances of getting hurt.