Running Plan Review Run Like a Pro Ultramarathon Level 3
By Run Like a Pro — Matt Fitzgerald and Ben Rosario Requires purchase Visit plan website
Plan at a Glance
Most amateur ultramarathon plans take a marathon block and tack a few longer Sundays onto the end. The pros don't train that way. They run nine times a week, stack hard Saturdays in front of hard Sundays, and spend three to five hours on their feet. Matt Fitzgerald and Ben Rosario wrote Run Like a Pro (Even If You're Slow) to put that approach in front of amateur readers. This is the deepest of the three ultra schedules in the book.
Ultramarathons reward different things than the marathon does. You aren't racing a flat course at a known pace. You're managing a long day where the surface changes, the weather changes, and your stomach can quit before your legs do. The training that prepares a runner for that looks more like rehearsal than speed work. You practice eating mid-run, you practice running tired on Sunday after a hard Saturday, and you practice being on your feet for hours.
Level 3 is the deepest of three, written for runners who already run six or seven days a week and want a nineteen-week pro-style ramp. Three-week cycles push the load up and then dial it back. Long days climb from ninety minutes to five hours by week sixteen. Three times across the build, a hard Sunday lands behind a hard Saturday. The book carries the rest (pacing tables, strength routines, recovery chapters), and you'll keep it open while you train.
What follows is Buena Vida's full review of the plan. Every plan is scored against our detailed, 31-point benchmark, drawn from peer-reviewed sports-science research and proven coaching best practices.
Workouts
Workout names and distances only. Coaching prose belongs to the plan’s author.
Similar plans
Our Review
You already run six or seven days a week, and you want a build that won't shrink itself to fit amateur scheduling. You get the deepest of three ultra plans in Run Like a Pro (Even If You're Slow): nineteen weeks, nine runs most weeks, a long day growing toward six hours. Before you start, look hard at week 13.
You'll meet the hardest week of the build there, and not by a little. Your long run reaches its cycle peak near six hours. You run it two days after a Lactate-Intervals session, on a week whose volume jumps about a quarter over the prior hard one. Counted from the actual segments, your acute-to-chronic load touches 1.74, the one clear overreach in an otherwise disciplined climb. That week earns its place, since cumulative fatigue is the skill an ultra demands. But guard it, sleep around it, and bail at the first twinge of a strained tendon.
Where the plan hands you the wheel: priority calls, disruption response, and strength. If you miss a week or feel a niggle starting, the calendar offers no cut-order and no rules. Strength never appears on the page, and the pace codes resolve only through the book's chapter-4 tables. This one suits a runner already settled into daily mileage who can self-coach those gaps and will keep Run Like a Pro on the desk. If you can't yet hold daily easy runs, take Level 2 first. If an ultra would be your first race past a half marathon, build through a marathon before you come back to this.
-
Structure
Does the plan build you up smartly?
Mostly. The build runs on tidy three-week cycles from start to taper, with recovery weeks falling at regular points and every hard day arriving fully built, from warm-up and drills through the paced work to the cooldown. The build is orderly almost the whole way. The one rough edge is week 13, where the volume takes a steep step up that the otherwise smooth climb does not really set you up for. That single jump is the point this strong structure gives away.
-
Prevention
Does the plan protect you from injury?
Not really, and this is the part of the build that asks for the most trust. The supportive habits are there, with recovery weeks every third week and drills and strides opening every hard day. But the load peaks hard in week 13, when the cycle's longest run sits right behind a demanding interval day, and nothing on the calendar cushions it. Strength work never appears, and there is no rubric for the early signs of trouble. Through the hottest stretch of the plan, watching your own legs is entirely on you.
-
Flexibility
What happens when you miss a day?
Very little gives on the schedule itself, which is the plan's weakest dimension. It never ranks your nine weekly runs, never names which to cut when a week falls apart, and never says what a niggle or a brutally hot day should change. Every session reads as equally load-bearing on the page. The principles for adjusting all live in chapter 1 of the book, so a disrupted week comes down to your own rules or a reach for that chapter.
-
Readiness
Will the plan deliver race-day fitness?
Mostly. Preparing you for the day itself is the plan's whole center of gravity. Long days climb toward a five-to-six-hour ceiling, three weekends stack a hard Sunday onto a hard Saturday to rehearse running tired, and depletion runs train your gut to take fuel before the race tests it. The gap is the unnamed distance. A 50K and a 100-miler want different closing blocks, and the plan leaves you to tailor that final shaping yourself.
-
Variety
Are the workouts varied enough?
The range of work here is genuinely the headline. Nine separate hard-session shapes rotate across the build, from hill repeats and fartleks to several flavors of intervals, tempo, and progression runs, and no two land the same way inside a cycle. Alongside them sit race-effort steady states, depletion runs, and weekly drills, strides, and plyometrics. Each session names its target effort and its work-to-recovery shape, so the menu stays deep and purposeful from base through taper.
Plan Strengths
- Your fast legs meet nine separate hard-session shapes across the cycle: hill, threshold, interval, fartlek, lactate, and tempo stress instead of one repeated format.
- At weeks 11, 14, and 17 you stack a hard Sunday behind a hard Saturday. That rehearses the late-race body that no single workout can teach.
- Every Thursday a shake-out run carries drills, strides, and plyometrics, so the running economy that holds your form at hour four gets weekly work.
- You never design a session yourself: each hard day lands fully built, with warm-up, drill block, paced reps, and cooldown already on the page.
- When a recovery week opens with a Monday off at 6, 9, 12, 15, and 18, your next two-week climb begins on legs that absorbed the last one.
- Long runs grow from 90 minutes in week 1 to roughly six hours by week 16, putting real time on your feet before race day asks for it.
Weaknesses & gaps
- Week 13 spikes your acute-to-chronic load to 1.74 when a near-six-hour long run lands two days behind a hard lactate session, and the plan never flags it.
- You program your own strength, two to three sessions a week, because it never reaches the calendar even though the schedule assumes it.
- Without numbers on the pace codes (CV, MAS, LTP, SSP, HMP), you convert each through the book's chapter-4 tables before every hard run.
- Miss a session and you get no cut-order. Every workout looks equally weighted, so the priority call falls on you mid-cycle.
- The ultramarathon distance is never named, so a 50K build and a 100-mile build share an identical final three weeks.
- Because long runs are timed in minutes, not miles, six mountain hours and six flat hours register the same on the page.
What this plan does not give you
Strength work is named in the calendar's table of contents and then handed off to chapter seven of the book. Building those two or three sessions a week into your own schedule is on you. The pace prescriptions are abbreviations (CV, MAS, LTP, SSP, HMP) that you convert to your own numbers using the chapter four zone tables before each hard session. That is one more piece of homework most plans don't ask for. The schedule also doesn't name the ultra distance, so a runner training for a 50K and a runner training for a 100-miler get the same final block. If your race is at the longer end, lean harder on the back-to-back long weekends and trim a little of the late interval work. And if you miss a session, the safest move is to repeat the same week rather than try to make up the missed work all at once.
What the science supports
Long runs are essential for marathon
The Saturday long run climbs from 2.2 hours in week 1 to 6.2 hours by week 16. Week 17 then stacks a 3.5-hour fasted effort with a four-hour follow-up the next morning. That back-to-back weekend is the centerpiece of ultra preparation. Sustained sub-threshold running past roughly 90 minutes drives the fuel-burning and connective-tissue adaptations that shorter, faster sessions cannot reproduce.
Toresdahl et al. 2021; Jones & Kirby 2025; Casado et al. 2019
Periodization beats constant-load training
Nineteen weeks split into clear blocks. Early weeks build aerobic work with progressions and shake-outs. The middle phase layers in threshold, hills, and longer Saturdays. Week 17 holds the back-to-back peak before two weeks of taper. Recovery weeks at 9, 12, and 15 break up the climb. Trained runners following this kind of phased structure consistently outperform peers holding one steady load through a block.
Bradbury et al. 2020; Tønnessen et al. 2014; Casado et al. 2022
Polarized training beats threshold-dominated
Most weeks pair four or five easy runs with one or two harder sessions, so the bulk of weekly time sits at conversational effort. The hard days are clearly hard. Intervals and hill repeats sit alongside fartleks and threshold work rather than a steady moderate grind. Trained runners adapt more when the easy and hard ends stay separated, instead of letting most sessions drift into a tiring middle zone.
Stöggl & Sperlich 2014; Casado et al. 2022; Kenneally et al. 2017
Higher chronic load is protective
Weekly running time sits between 8 and 13 hours through the build. Cutback weeks at 9, 12, and 15 absorb the work. Consistent, well-supported volume of that size builds tissue tolerance over months. Runners who sustain higher chronic mileage tend to break down less often than runners holding very low weekly loads. The body adapts to the demand rather than meeting each long day cold.
Tapering improves race performance by 2-6%
The two weeks before race day cut total running time roughly in half. Volume drops from 12.8 hours at peak to 8 hours in week 18 and 4.3 hours in week 19. Short sharpening efforts stay on the schedule (a fartlek, descending intervals, a progression run) so race-pace fitness does not fade. That balance of trimmed volume with preserved intensity is the pattern that reliably adds a few percent on race day.
Train better with Buena Vida
Buena Vida Run Club members get access to a catalog of 250 training plans as part of their membership. Training with Buena Vida offers detailed daily workout notes, integrated nutrition, live voice coaching, weight loss plans, and easy calendar management for life's hiccups.
Try it FREE for 7 days!
Frequently asked questions
- Is Run Like a Pro Ultramarathon Level 3 good for beginners?
- No. Run Like a Pro Ultramarathon Level 3 is built for advanced-level runners. A true beginner should start with a lower-mileage plan.
- How many days per week does Run Like a Pro Ultramarathon Level 3 require?
- The plan runs on a schedule of multiple weekly runs. See the at-a-glance strip for the exact count.
- Does Run Like a Pro Ultramarathon Level 3 include a taper?
- Yes, the plan includes a taper into race week.
- What is the rubric grade for Run Like a Pro Ultramarathon Level 3?
- Run Like a Pro Ultramarathon Level 3 grades C on the Buena Vida rubric.