If running a marathon is on your bucket list, we have an 18-week plan designed specifically to help a first-timer train to run 26.2. This program, created for those who have been running for at least one year, will help you build endurance and mileage. Before beginning this program, you should be running between three and four times a week for two to three miles on each run.
The weekly mileage starts at 11 miles per week, peaking at 40 weekly miles during week 14. Long runs, the base of marathon training, start at four miles and grow to 20 miles.