PR Pacer · Running
Marathon Training Plan
Every day mapped from today to race day — and a coach you can actually ask about any of it.
A marathon training plan only works if you can follow it, and you can only follow it if you understand why each day is there. Most plans hand you a spreadsheet. PR Pacer builds the same structure a good plan needs, then stays in the conversation with you as you train — so when a Tuesday tempo run doesn't make sense, or your legs feel off before a scheduled long run, you have somewhere to ask instead of just guessing.
What a real marathon block needs
- A gradually building long run that peaks a few weeks before race day, then tapers — never a large jump from one week to the next.
- Weekly mileage that adds up. Daily distances should reconcile to the week's real total, with every one of the seven days assigned something, including rest.
- At least one quality session a week — a threshold or tempo effort that's a complete workout (warm-up, the actual dose, recovery, cool-down), not just a pace label stapled onto a distance.
- Demanding days kept apart. A long run and a hard workout back to back, repeatedly, is how plans fall apart around week 8.
- A taper that protects your fitness instead of just stopping training the week before the race.
How long the block should be
16 to 20 weeks is the standard range. If you're already running consistently, you can sometimes work with less. If you're building up from irregular mileage, closer to 20 weeks means the early buildup doesn't have to be rushed — which is usually where injuries come from, not the peak weeks.
How PR Pacer builds yours
Give your coaching staff your race date, your current running, and how many days you can train. The Head Coach lays out the full calendar; the Analyst checks it for the mistakes above — mileage jumping too fast, hard days stacked together, a long run disproportionate to the rest of the week — before you see it. Once you accept it, keep talking to your coach about it: ask what a session should feel like, share a run screenshot for context, or ask how to adjust after a missed day.
Use long runs to rehearse your race routine: calculate what fuel to carry and choose treadmill settings by workout purpose.
Build your marathon plan with your AI training staff.
Free to start.
Frequently asked
- How many weeks should a marathon training plan be?
- 16 to 20 weeks is standard. An existing consistent base can work with less; building up from little regular mileage benefits from closer to 20.
- How long should my long run be?
- It should grow gradually across the block and never jump by a large percentage week to week. A single disproportionate long run is one of the more common ways runners get hurt mid-block.
- Do I need speed work, or just long runs?
- Just long runs builds endurance but not pace control. A complete plan mixes easy volume, a weekly threshold or tempo session, and a long run — each serving a different purpose.