The 16-week marathon training plan, built around you.
Sixteen weeks is the classic marathon runway: long enough to build real fitness safely, short enough to hold your focus from the first easy run to the start corrals. Whether it’s your first 26.2 or a sub-4:00 attempt, the structure below is how a 16-week build works, and Stride turns it into your actual calendar, mapped from today to race day.
Searching for a printable plan? Skip the PDF. A static page of boxes can’t move a long run when work explodes or adjust when you catch a cold in week nine. The app does.
Sixteen weeks, four phases.
BASE
Weeks 1-4Easy mileage and one steadily growing long run. The only goal is showing up: consistent weeks, conversational pace, and a body that's ready to absorb the work coming next.
BUILD
Weeks 5-10Volume climbs and quality arrives: tempo runs, intervals, and long runs that stretch toward their peak. Every third or fourth week steps back so the gains actually stick.
PEAK
Weeks 11-14Your biggest weeks and longest runs, with goal-pace segments late in the long run when your legs are already tired, the exact skill the last 10K of a marathon demands.
TAPER
Weeks 15-16Volume drops, intensity stays sharp, and the fatigue you've been carrying for months finally clears. You arrive at the start line fit, fresh, and a little restless, exactly right.
Two rules hold the whole thing together: most of your miles stay easy, and every third or fourth week steps back so your body can absorb the training instead of just surviving it.
Pick the build that matches your last six weeks.
Not your best-ever season, your recent one. In the app, Stride asks about your running history and picks for you.
Beginner
Finish strong- 4 run days / week
- Peaks around 35-40 miles
- Long run builds to 18-20 miles
For your first marathon or your first structured build. Almost everything is at an easy effort, the long run grows patiently with step-back weeks built in, and the plan is conservative enough that you reach the start line healthy, the only thing that actually matters the first time.
Intermediate
Race it, not just run it- 5 run days / week
- Peaks around 45-50 miles
- Long run builds to 20 miles
For runners with a marathon or a few halves behind them. Adds a weekly tempo run and marathon-pace segments inside the long run, so goal pace stops being a number on a wrist and starts being a feeling you trust.
Sub-4:00
9:09 per mile, made routine- 5-6 run days / week
- Peaks around 50-55 miles
- Long run builds to 20-22 miles
A time-goal build. Intervals sharpen your speed, tempos raise the pace you can hold for an hour, and long runs finish with extended stretches at goal pace, so 9:09s in mile 24 feel like something you've already done many times.
16-week plan questions, answered.
Where can I download a 16 week marathon training plan PDF?
You don't need a PDF, and honestly a PDF can't do the job. It can't move a long run when your week changes, adjust when you miss days, or push today's workout to your watch. The Stride app builds your 16-week plan around your race date and your actual schedule, then updates it as real life happens.
Is 16 weeks enough to train for a marathon?
For most runners with some running base, yes: 16 weeks is the sweet spot, long enough to build safely, short enough to stay hungry. If you're starting from zero, a longer runway helps, and if your race is closer than 16 weeks, don't panic. Stride maps your plan from today to race day, whatever the window.
How many miles a week does marathon training take?
It depends on the build: beginner plans peak around 35-40 miles, intermediate around 45-50, and time-goal plans around 50-55. More important than the peak number is the shape: most miles easy, one long run a week, and step-back weeks so the load never outruns your recovery.
Should I pick the beginner, intermediate, or sub-4 plan?
Be honest about the last six weeks, not your best-ever season. If you're new to the distance or coming back, start with the beginner build. If you've done a marathon and run consistently, intermediate. If you've raced one and want a time, the sub-4 build. In the app, Stride asks about your recent running and picks for you.
What if I miss a week of marathon training?
A missed week doesn't break a 16-week plan; panicking and cramming does. Rejoin the plan where it is, don't try to make up lost miles, and treat the next long run as a checkpoint. Stride is built on consistency over perfection: the plan adjusts, and you never start over from zero.