18-Week Marathon Training Plan
This 18-week beginner marathon training plan takes you from casual jogging to completing 26.2 miles. It features 4 running days per week, tops out at a 150-minute long run, and prioritizes injury prevention for first-timers.
Who Is This Plan For?
This plan is perfect for your first marathon. It assumes you already have a small fitness base (can jog for 20-30 minutes non-stop). It's designed for working professionals who need a manageable weeknight schedule.
What to Expect
Starting Your Routine
Weeks 1-5Getting comfortable with running 4 days a week. Your longest weekend run slowly climbs from 40 to 70 minutes.
The Long Run Build
Weeks 6-14This is where the magic happens. Your weekend runs extend past the 90-minute mark to build serious stamina.
Rest and Race Prep
Weeks 15-18After hitting your peak 2.5-hour training run, we cut back your running time for the final weeks so your legs are 100% fresh for race day.
Upgrade to Adaptive Plan
The same plan, but it learns from you. After each workout, tell us how it felt — and your plan adjusts automatically for next week.
Training Schedule
18-week progressive plan with recovery weeks built in
Tips for Success
- ✓Do not try to make up for missed runs. If you miss a Tuesday easy run, let it go and move on.
- ✓Start practicing your race day nutrition (gels, chews, electrolytes) during your Sunday long runs.
- ✓Sleep is your most important recovery tool during the Peak phase.
Frequently Asked Questions
Is this the best beginner marathon training plan?
Yes, this is an excellent first marathon training plan because it uses time instead of miles. Focusing on 'minutes run' prevents beginners from running too fast just to get the distance over with.
How long should my longest run be before a marathon?
In this 18-week plan, the longest run peaks at 150 minutes (2.5 hours). Running longer than 3 hours in training actually increases injury risk with little aerobic benefit for beginners.
What pace should I run my training runs?
100% of the runs in a beginner marathon training plan should be at a 'conversational pace.' If you are gasping for air, you are running too fast for endurance adaptation.