Running Plan Review Advanced Marathoning 12-Week, 55 to 70 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 12-week route through his middle tier, written for runners who are already there.
You'll run six days a week from the first week to the last. Week 1 opens at 56 miles, which is close to what many plans treat as peak. Because there is no base phase to fund, almost the whole schedule sits near the top of the range. Nine of the 12 weeks fall between 53 and 69 miles.
Four blocks carry the plan: endurance, lactate threshold, race preparation, then a two-week taper. Threshold work is prescribed in minutes rather than miles, so a 30-minute tempo asks the same of you at any pace. Marathon-pace running grows through three long runs to 12 continuous miles at goal pace in week 6. Two tune-up races land in the race-preparation block.
Come in holding 55 miles a week with a recent long run near 16 miles. This schedule has no on-ramp and one marked dropback week. Strength work is programmed in the book but never appears on the calendar, so you'll place those sessions yourself.
Below is Buena Vida's full review of the plan. We score every plan against our detailed, 31-point benchmark. Each measure is drawn from peer-reviewed sports-science research and proven coaching best practices.
Workouts
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Our Review
You already hold 55 miles a week comfortably. Your marathon is 12 weeks out, and you don't need a base phase because you never lost your base. That is exactly the runner this schedule is built for.
You spend remarkably little time below peak. Week 1 asks for 56 miles, and nine of the 12 weeks sit between 53 and 69. You skip the climb that most 12-week plans spend their first third on. The payoff is a lot of marathon-specific work in a short window. The cost is that one dropback week absorbs everything. Arrive at week 1 short of 55 miles and you'll be behind from the first Sunday, with no room to catch up.
Choose this if you're already at 55 weekly miles, coming off a recent race or build, with six days a week to give. If your base is still returning, the 18-week schedule at the same mileage gives you the ramp this one omits. If you want rest or cross-training days written into the week, the up-to-55 tier is the better fit.
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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 shortened against the 18-week version, but the sequence and purpose are identical. One dropback week is marked, in week 5. The two-week taper still carries a tune-up race and a marathon-pace dress rehearsal.
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Prevention
Does the plan protect you from injury?
Progression is gentle because there is barely any: the largest week-to-week step is about 11%, since you start near peak and stay there. Your legs see high chronic load from week 1, which the research treats as protective once you are adapted to it. Every hard session opens with a warm-up. 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 timed rather than measured, so a 30-minute tempo costs you the same effort at any pace you hold. A decision table tells you when missed training means resuming and when it means revising your goal. No workout carries a cut-first tag. You'll know that long runs outrank intervals, but not which of six 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. Long runs reach 20 miles in weeks 7 and 9, the second of those three weeks out. You rehearse goal effort three times and race effort twice before the start line.
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Variety
Are the workouts varied enough?
Nine run types appear across the 12 weeks, from recovery days through threshold, VO2max intervals, and marathon-pace long runs. Hill sprints are new in this edition: six 10-second efforts on the end of an easy run, adding power without a hard day. Reps run from 600 meters up to 1,000 meters. Variety here is about purpose more than distance.
Plan Strengths
- You hold near-peak mileage for nine weeks, which builds the chronic load that protects your legs.
- Marathon pace reaches 12 continuous miles by week 6, so race effort stops feeling novel to your legs.
- Week-to-week steps stay near 11%, so your legs rarely face a jump they haven't seen.
- Two tune-up races give you competitive starts to fix pacing habits before the marathon.
- Threshold work runs on the clock, so a 30-minute tempo lands the same dose on your legs at any pace.
Weaknesses & gaps
- Week 1 asks for 56 miles, so arriving short of 55 leaves you behind with no catch-up room.
- One dropback week across 12 gives your legs a single window to absorb everything.
- With six running days and no cross-training slot, your bad weeks have nowhere to go.
- Chapter 4 of the book programs strength work that never appears on your calendar.
- Nothing marks which runs to drop first, so a collapsed week leaves you guessing.
What this plan does not give you
The gap is what lives in the book rather than the calendar. Strength work is programmed in chapter 4 but never scheduled, so plan two short sessions on easier days and keep them off 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 converting a goal time into a 5K pace, so interval targets need a recent race of your own. The other absence is an entry check. This schedule opens at 56 miles and assumes you are already there, and nothing in it will stop you starting underprepared.
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 gets ragged, then race preparation, then a two-week taper. Because the base phase is assumed rather than trained, each block does more work in less time. Shifting emphasis across blocks still outperforms 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 20 miles in weeks 7 and 9, with 16 to 18 mile runs around them. At a peak near 69 miles a week, that long run is close to a third of your weekly mileage. The days on either side stay easy for exactly that reason. Faster, shorter work does not replace it when the target is 26.2 miles.
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. At this level race pace usually sits just under the breathing-hard threshold, so the rehearsal transfers to race day. Threshold runs keep their own days rather than merging into the race-pace sessions.
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 69 miles down to 24 while holding intensity. 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 produces the small, 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 will not make you faster on their own. What you get is practice at starting honestly among other runners, which is the habit that decides your first 10 miles.
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Frequently asked questions
- Is Advanced Marathoning 12-Week, 55 to 70 mi/wk good for beginners?
- No. Advanced Marathoning 12-Week, 55 to 70 mi/wk is built for intermediate-level runners. A true beginner should start with a lower-mileage plan.
- How many days per week does Advanced Marathoning 12-Week, 55 to 70 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, 55 to 70 mi/wk include a taper?
- Yes, the plan includes a taper into race week.
- What is the rubric grade for Advanced Marathoning 12-Week, 55 to 70 mi/wk?
- Advanced Marathoning 12-Week, 55 to 70 mi/wk grades A on the Buena Vida rubric.