16-Week Marathon Training Plan Template (Free, Editable)

About this template

You signed up for a marathon. So — what do you actually run between now and race day, and in what order?

More miles isn't the answer. Marathon training moves through phases — build a base, grow distance and speed, then sharpen for race day — and going out too hard gets you injured, while cramming mileage right before the race leaves you tired at the start line. That's why the smart move is to plan backward from race day.

This template lays out a roughly 16-week plan for a beginner-to-intermediate runner aiming to finish a marathon. Every phase is counted back from race day, so entering your event's date tells you when to start each block. Tune the weekly mileage to your own fitness.

How the plan is broken down

First, build a base. The first month isn't about speed — it's about establishing the habit and the aerobic base. Skip it and you'll break down later.

Then grow distance and speed. Long, slow runs build endurance; tempo runs and intervals build speed — trained in parallel. This is the heart of the block.

Finally, sharpen for race day. Simulate the race with a long run, max out volume in the peak weeks, then taper — deliberately cutting volume. Letting fatigue drain so you arrive fresh is the most important and the hardest phase to trust.

Why the durations are set this way

• A 16-week block. For a first-time finisher, about four months is the standard window to build fitness safely. Much shorter raises injury risk.
• A two-week taper. The race-week skill is the courage not to run. Cutting volume over one to two weeks clears accumulated fatigue so your fitness shows up on the day. Skipping the taper to keep training is the most common mistake.
• Long runs end ~3 weeks out. One near-race-distance run reduces race-day anxiety, but doing it too late leaves fatigue in the legs.

Common pitfalls

1. Starting too fast. Jumping into speed work without a base gets you injured mid-plan. Keep the order.
2. Skipping the taper. "I'm nervous, so I'll keep running" backfires. A planned drop in volume is what gets you to the finish.
3. Not counting back from race day. How many weeks you have changes every phase length. Subtract from the race, don't add from today.

How to use it

Click "Start with this template", enter your race day, and the 16-week plan unfolds backward as an editable timeline (a Gantt chart). No sign-up, no login. Drag and drop to fit each phase to your fitness and life.

Share the plan with a link to coordinate with a running buddy or coach.