Running Plan Review Advanced Marathoning 12-Week, 70 to 85 mi/wk
By Advanced Marathoning (4th ed.) — Pete Pfitzinger and Scott Douglas Requires purchase Visit plan website
Plan at a Glance
Pete Pfitzinger ran two Olympic marathons before turning to coaching. The system he built with Scott Douglas splits the instruction between the calendar and the book. This is the compressed route through his 70 to 85 mile tier, and it assumes you are already inside that range.
You'll open at 66 miles in week 1 and reach 84 by week 9. There is no base phase, because the plan takes your base as given. Easy doubles appear from the second week, splitting recovery days into a morning and an evening run rather than one long shuffle.
Four blocks carry the 12 weeks: endurance, lactate threshold, race preparation, then a two-week taper. Threshold work runs on the clock, up to 40 minutes at lactate-threshold pace. Marathon-pace running grows through three long runs to 12 continuous miles at goal pace in week 6. The long run reaches 21 miles in week 7, and two tune-up races sit in the race-preparation block.
Come in holding 70 miles a week with a recent long run near 17 miles. One dropback week is marked, in week 5. Strength work is programmed in the book but never appears on the calendar, so you'll schedule it yourself.
What follows is our full review of the plan. Buena Vida grades every plan on the same detailed, 31-point benchmark. Each measure comes from peer-reviewed sports-science research and proven coaching best practices.
Workouts
Similar plans
Our Review
You'll start this schedule at 66 miles a week. Not build to 66. Start there, in week 1, with a 17-mile long run on the first Sunday. That single fact tells you whether this plan is for you.
Everything else follows from the missing on-ramp. You reach 84 miles by week 9, but the climb from 66 to 84 is gentle because most of the distance was already covered before you opened the book. What you get in exchange for that assumption is nine weeks of marathon-specific work where a longer plan would still be building aerobic base. What you give up is any margin for arriving underprepared. If you show up at 55 miles rather than 70, week 1 alone is a 20% jump on your recent training. The plan has one dropback week to absorb that.
Come to this already holding 70 miles a week with a marathon behind them and a time goal ahead. If your base is still climbing toward 70, the 18-week version at this mileage gives you the ramp. If you can't run seven days including doubles, the 55 to 70 tier runs a similar shape with more room to breathe.
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Structure
Does the plan build you up smartly?
Four blocks run the schedule: endurance, threshold, race preparation, then taper. Each is compressed against the 18-week version but the sequence is unchanged. One dropback week is marked, in week 5, pulling volume back to 64 miles. The two-week taper carries a tune-up race and a marathon-pace dress rehearsal into race week.
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Prevention
Does the plan protect you from injury?
Progression is mild by design, with the largest week-to-week step near 8%, because you begin close to peak. Your legs carry high chronic load from the first week, which is protective once you are adapted but punishing if you are not. Doubles split the recovery days so mileage accumulates without extra hours on your feet. Chapter 4 of the book programs strength work that never reaches the calendar.
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Flexibility
What happens when you miss a day?
Threshold sessions are prescribed in minutes, reaching 40 minutes at lactate-threshold pace. A decision table tells you when missed training means resuming and when it means revising your goal, which matters in a schedule this short. No session carries a cut-first tag. You'll know long runs outrank intervals, but not which of seven weekly runs to sacrifice.
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Readiness
Will the plan deliver race-day fitness?
Marathon-pace work grows through 8, 10, then 12 continuous miles at goal pace in weeks 1, 3, and 6. Two tune-up races give you competitive starts before race day. The long run peaks at 21 miles in week 7 and holds 20 miles in week 9, three weeks out. You rehearse goal effort three times and race twice before the start line.
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Variety
Are the workouts varied enough?
Ten run types appear once doubles are counted, from recovery pairs through threshold, VO2max intervals, and marathon-pace long runs. Hill sprints are new in this edition, running 10 to 12 seconds up a moderate grade before a set of strides. Reps run from 600 meters to 1,000 meters at 5K effort. The range of purpose is wide even though the schedule is short.
Plan Strengths
- Doubles split your recovery days, so you bank mileage without adding hours on your feet.
- You spend nine weeks doing marathon-specific work where longer plans are still building base.
- Week-to-week steps stay near 8%, so your legs rarely meet a jump they haven't already seen.
- Marathon pace reaches 12 continuous miles by week 6, which puts goal effort in your legs early.
- Threshold runs stretch to 40 minutes on the clock, lifting the ceiling your race pace sits under.
Weaknesses & gaps
- You start at 66 miles in week 1, so arriving underprepared leaves you behind immediately.
- One dropback week across 12 gives your legs a single window to absorb the load.
- Seven running days with doubles leaves your disrupted weeks nowhere to go.
- Chapter 4 of the book programs strength work you'll never see on the calendar.
- Nothing marks which runs to drop first, so you're guessing when a week falls apart.
What this plan does not give you
The gap is what the book holds and the calendar omits. Strength work is programmed in chapter 4 but never scheduled, so put two short sessions on easier days, clear of the evening before a hard run. Pace prescriptions assume the book is nearby. Threshold pace resolves through Appendix B's equivalent race times, but the fourth edition dropped the chart that converted a goal time into a 5K pace, so interval targets need a recent race of your own. There is also no entry check. The schedule opens at 66 miles with a 17-mile long run on the first Sunday, and nothing will stop you starting short of that.
What the science supports
Training in phases beats holding one load
The 12 weeks run through four blocks: endurance, then lactate threshold, meaning steady efforts just under the pace where breathing turns ragged, then race preparation, then a two-week taper. Because base training is assumed rather than scheduled, each block does more in less time. Shifting emphasis between blocks still beats holding one gear throughout.
Bradbury et al. 2020; Tønnessen et al. 2014; Casado et al. 2022
Long runs are essential for the marathon
Long runs reach 21 miles in week 7 and 20 miles in week 9, with 16 to 18 mile runs around them. At a peak near 84 miles a week that long run is roughly a quarter of your mileage, which is a smaller share than lower tiers carry. Accumulated long-run stress is still what builds marathon resilience.
Toresdahl et al. 2021; Jones & Kirby 2025; Casado et al. 2019
Race-pace training pays off near your threshold
Marathon-pace blocks sit inside long runs in weeks 1, 3, and 6, growing from 8 to 12 continuous miles at goal pace. For runners chasing a time at this volume, race pace sits close to the threshold where specific rehearsal pays off. Threshold sessions keep their own days so the two stimuli stay separate.
Pierce et al. 1990; Hewson & Hopkins 1996; Jones et al. 2021
A taper makes you 2-6% faster on race day
The last two weeks bring volume from about 84 miles down to 28 while intensity holds. A tune-up race sits two weeks out, VO2max repeats follow, and a marathon-pace dress rehearsal lands in race week. Cutting volume while keeping the sharp sessions is what delivers the reliable race-day gain.
Tune-up races may sharpen pacing
Two tune-up races sit in the race-preparation block, one at 8K to 15K and one shorter. They add little fitness on their own. Their value to you is rehearsal at starting honestly in a crowded field, the habit that protects your first 10 miles.
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Frequently asked questions
- Is Advanced Marathoning 12-Week, 70 to 85 mi/wk good for beginners?
- No. Advanced Marathoning 12-Week, 70 to 85 mi/wk is built for advanced-level runners. A true beginner should start with a lower-mileage plan.
- How many days per week does Advanced Marathoning 12-Week, 70 to 85 mi/wk require?
- The plan runs on a schedule of multiple weekly runs. See the at-a-glance strip for the exact count.
- Does Advanced Marathoning 12-Week, 70 to 85 mi/wk include a taper?
- Yes, the plan includes a taper into race week.
- What is the rubric grade for Advanced Marathoning 12-Week, 70 to 85 mi/wk?
- Advanced Marathoning 12-Week, 70 to 85 mi/wk grades B on the Buena Vida rubric.