Training Plans

Marathon Training Plan

Stop searching for PDFs. Get an adaptive marathon training plan built for your fitness level and schedule. Personalized, Garmin-synced, and actually adjusts as you train. Try Coach free for 14 days.

The short answer

Most marathon plans run 16–20 weeks: 16 for intermediate runners, 20 for beginners building base. Coach Icarus builds an adaptive plan around your fitness, available days, and goal — adjusting when you miss runs or get sick, unlike static PDFs. Start free (sync, history, recovery metrics); plan generation is Coach at $9.99/mo or $99/yr with a 14-day no-card preview.

16–20 week adaptive plans built around your schedule
Adjusts to missed runs and illness — not a static PDF
Garmin Coach also has marathon plans; this adds the coaching layer

Plan length: 16–20 weeks
Key sessions: Long run, tempo, intervals
Free tier: Sync + recovery metrics
Coach: $9.99/mo, 14-day preview

Most marathon training plans are static PDFs that do not adapt to your life. Miss a run? The plan does not care. Get sick? The plan keeps going. Coach Icarus is different — it builds a living plan that adjusts to your actual training, and you can try it free for 14 days.

What does the plan include?

Adaptive 16–20 Week Plans

Plans that adjust based on your fitness, schedule, and actual training data.

Garmin Sync

Every run syncs automatically. Your plan updates based on what you actually ran.

Post-Run Feedback

Personalized analysis of each workout with pacing insights and recovery tips.

Pace Calculator

Built-in calculator to find your target marathon pace per km and per mile.

Periodized Training

Base → Build → Peak → Taper phases structured for optimal race performance.

Key Workouts

Long runs, tempo runs, intervals, and recovery runs programmed for your level.

What pace should you target?

Common marathon goal paces — find your row, then train at it.

Goal Time	Pace /km	Pace /mi	Speed
Sub-3:00	4:15	6:51	14.1 km/h
Sub-3:15	4:37	7:26	13.0 km/h
Sub-3:30	4:58	8:00	12.1 km/h
Sub-3:45	5:20	8:35	11.3 km/h
Sub-4:00	5:41	9:09	10.6 km/h
Sub-4:30	6:23	10:17	9.4 km/h
Sub-5:00	7:06	11:26	8.4 km/h

Frequently asked questions

How long does a marathon training plan need to be?

Most marathon training plans are 16-20 weeks. A 16-week plan is standard for intermediate runners, while 20 weeks gives beginners more time to build base mileage. Coach Icarus adapts the plan length to your current fitness and target race date.

What is the best marathon training plan for beginners?

The best plan is one that adapts to you. Coach Icarus builds a personalized plan based on your current running volume, available days per week, target time, and fitness level. Unlike static PDF plans, it adjusts as you improve or miss workouts.

Does Garmin Coach have marathon training plans?

Yes — Garmin Run Coach offers adaptive marathon training plans that adjust to your performance. Coach Icarus is an alternative for runners who want a coaching layer on top of a plan: post-run debriefs, a coach you can ask questions, and adaptation driven by HRV and sleep.

Can I train for a marathon with just 4 days a week?

Yes. Most marathon plans include 4-5 running days per week plus cross-training. Coach Icarus lets you set your available days and builds a plan around your schedule. Key sessions include a weekly long run, tempo run, interval session, and easy recovery runs.

Do I need to pay for a marathon training app?

You can start free: Garmin sync, activity history, charts, and recovery metrics are free on Coach Icarus, always. Plan generation and adaptation are part of Coach ($9.99/mo or $99/yr), and every account gets one 14-day, no-card preview — the marathon plan you build during it is retained even after the preview ends.