A good marathon taper plan reduces fatigue without making you feel flat. Most runners perform best by cutting total mileage over 3 weeks, keeping a little marathon-specific work, and tightening sleep, fueling, and logistics.
3-week taper mileage framework by experience level
If your peak week was 35 miles or 70 miles, the percentages are more useful than fixed numbers. Start with your highest recent training week and scale down using this range.
| Runner level | 3 weeks out | 2 weeks out | Race week | Long run guide |
|---|---|---|---|---|
| First marathon | ~80-85% of peak | ~60-65% of peak | ~40-45% of peak | ~90-110 min, then ~60-75 min, then short shakeouts |
| Intermediate | ~80-85% of peak | ~60-70% of peak | ~45-50% of peak | ~100-120 min, then ~75-90 min, then short shakeouts |
| Advanced / high volume | ~82-88% of peak | ~65-72% of peak | ~45-55% of peak | ~110-130 min, then ~80-95 min, then short shakeouts |
How much to reduce mileage before marathon day? For most runners, reducing volume by roughly 15-20% (week -3), then 30-40% (week -2), then 50-60% (race week) works well when you also control intensity and sleep.
Simple week-by-week template
- Week -3: Last meaningful marathon-specific week, but no all-out sessions.
- Week -2: Keep frequency, trim run duration, keep one controlled quality session.
- Race week: Keep legs moving with short easy runs and a few strides; avoid adding fatigue.
Alternate views: minimal taper or no taper
Not everyone uses a classic 3-week taper. Some experienced runners on lower volume use a shorter 7-10 day taper, and some experiment with almost no taper at all. Those approaches can work for specific athletes, but they carry more risk if your recent block has been stressful.
- Short taper (7-10 days): sometimes used by durable, experienced runners who recover quickly.
- Minimal/no taper: occasionally used for lower-priority races or very high-frequency runners who feel flat when they cut too much.
- Most marathoners: still perform better with a structured 2-3 week reduction in volume.
When in doubt, bias toward arriving slightly under-cooked rather than over-cooked. A fresh runner can usually race well; a fatigued runner rarely can.
Intensity guidance: what to keep vs cut
| Training element | Keep | Cut or reduce |
|---|---|---|
| Easy runs | Yes, keep frequency | Shorten duration |
| Marathon-pace work | Short controlled blocks | No long grinding blocks |
| Threshold / tempo | Light touch only in week -2 | Cut total rep volume |
| VO₂ max / hard intervals | Very limited or none | Avoid deep fatigue sessions |
| Strength training | Mobility + activation | Heavy lifting in final 7-10 days |
Use the pace calculator to lock your marathon-pace range, and the splits calculator to build conservative opening splits.
Carb-loading and hydration timing basics
- 72-48 hours before race: Shift meals toward carbohydrate-focused, low-fiber choices you already tolerate well.
- 48-24 hours before race: Keep fluids steady and include sodium with meals/drinks, especially if forecast is warm.
- Race morning: Eat familiar pre-race carbs 2-4 hours before gun time; avoid experimenting.
- During race: Follow the fueling plan you practiced in long runs (timing and product choice).
For extra marathon context, see Run Your First Marathon, Marathon Pace Chart by Age, and What Pace Do I Need for a 4 Hour Marathon?.
Race-week checklist
- Finalize goal pace and backup pace plans for weather.
- Confirm bib pickup time, transport, and start-line arrival buffer.
- Lay out race kit, shoes, socks, and weather options 2 nights early.
- Charge watch/headphones and preload course or pace alerts.
- Set fueling schedule (what + when) and pin it to your race belt.
- Prioritize sleep timing all week; do not panic over one imperfect night.
- Run short shakeouts only; keep confidence high and effort low.