Train smarter.
Race faster.
Finish strong.
Marathon Trainer builds a personalized, week-by-week training plan around your race date, current fitness, and real schedule — then adapts it as you go. No generic 16-week PDF. No guessing.
Everything a coach would build.
In seconds, not sessions.
Plans that learn from every run
Our model reads your workout data, recovery signals, and race timeline to rebalance the plan each week. Miss a long run? It adjusts. Crush a tempo? It raises the bar.
Built around your life, not a template
Tell us your race date, how many days you can run, and your target finish time. We do the math.
Garmin, Apple Watch & Strava sync
Import your history and stream new workouts automatically. Zero manual logging.
Understand your fitness progression
See fitness load, form metrics, and weekly volume in one clean dashboard built for runners, not data scientists.
Pace strategy for race day
Get a split-by-split race plan based on your current fitness, not wishful thinking.
Know when to push, know when to rest
HRV-informed recovery scores keep you in the optimal training window and out of injury territory.
From couch to start line.
With a plan that actually fits.
Tell us about your race and fitness
Your target race, finish goal, weekly availability, and current weekly mileage. That's it. No lab tests required.
We ask what matters. We skip what doesn't.
Your personal plan is built on the spot
Our AI creates a periodized 12–20 week plan with the right blend of easy miles, quality sessions, and progressive long runs.
Backed by Daniels, Pfitzinger, and Hansons training science.
It evolves every week with you
As you log runs — or connect your device — the plan adapts to your actual fitness trajectory. Life happens; your plan handles it.
The goal doesn't move. The path does.
Ready to stop guessing and start training with a plan built for your race, your schedule, and your goals?
Build My Plan — It's FreeWhat changes when your plan
actually knows who you are.
Generic training plans
- ✕Generic 16-week PDFs with no context
- ✕Guessing at easy vs. hard day intensity
- ✕Skipping a run = entire plan derailed
- ✕Race pace pulled from wishful thinking
- ✕No idea if the mileage is right for you
Marathon Trainer
- ✓Personalized weekly plan, rebuilt each Monday
- ✓Exact paces for every run type based on you
- ✓Miss a day? Plan adapts the same evening
- ✓Race strategy built from your actual fitness
- ✓Progressive overload tuned to your body
14,000 runners trusted
Marathon Trainer for their race.
“I've used Hal Higdon plans for three marathons. Marathon Trainer is what I wish those plans were — it actually adjusted when I got sick in week 9 and I still hit my sub-4 goal.”
“As a data person I was skeptical of another 'AI fitness app.' But the adaptation logic is real. It saw my easy runs getting faster and raised my threshold paces before I thought to ask.”
“Working full time with two kids, I need a plan that survives real life. Marathon Trainer rebuilt my week every time I had to skip a run. First marathon finish at 47.”
NO CREDIT CARD · CANCEL ANYTIME · PLAN BUILT IN SECONDS
Your race is waiting.
Your plan starts today.
Answer three questions. Get a complete, science-backed training plan in seconds. Adapt it every week until race day.