Running Plan Review Buena Vida Run Club's 12-Week Sub-2 Half Marathon (4 days)
Plan at a Glance
Twelve weeks is a strange length for a half-marathon build. Ten compresses the goal-pace work. Sixteen asks for a base most working runners don't have. This plan threads the difference by bracketing its build between two cutback weeks, one at week 4 and one at week 11, with eleven contacts with race pace fit in between. By week 6, 9-minute pace tends to stop reading as a target. It starts reading as the speed the legs already know.
A sub-2 half is the threshold race for a lot of intermediate runners. The pace itself, roughly 9 minutes per mile, is not what makes it hard. What makes it hard is holding it through mile 11 and mile 12, when the legs are asking whether they really have to. Plans that fail at this distance usually fail the same way. They build mileage well enough but never give the body enough sustained time at goal pace for it to feel familiar.
Buena Vida built this for the runner who's already finished a half in the 2:05 to 2:15 range and has four mornings to give for twelve weeks. Mondays are easy. Wednesdays hold short repeats at race pace with easy jogs between them. Thursdays run a sustained block at the same race pace. Saturdays are the long run. Strength training fills Tuesday and Friday. The plan assumes a starting base near 18 miles a week with a recent long run of at least 12 miles.
Here is Buena Vida's full review of the plan. We measure every plan against our detailed, 31-point benchmark. Each standard is drawn from peer-reviewed sports-science research and proven coaching best practices.
Similar plans
Our Review
An intermediate runner sitting on a 2:05 to 2:15 half with twelve clean weeks ahead has the right plan here. You will touch half-marathon pace eleven times, climb to a 36-mile peak week, and rehearse a continuous five-mile pace block plus three goal-pace miles run while already tired. Easy days hold around 80% of the load, and a two-week taper drops the volume while keeping the legs sharp. The honest gaps are on the recovery side. Wednesday intervals and Thursday tempos run on consecutive days, and the load rebounds a little quickly the week after each cutback. Hold your easy days genuinely easy and the plan delivers what its peak sessions promise.
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Structure
Does the plan build you up smartly?
You can read the whole plan's logic off the calendar. Five named phases run from base to race week, easy mileage climbs from 18 to a 29-mile peak, and speed work enters in week 3, tops out in week 9, then vanishes for the taper. Cutback weeks at week 4 and week 8 give the body a breather before each new push. Every key session lists its warmup, its work, and what a good day feels like, so nothing is left for you to guess.
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Prevention
Does the plan protect you from injury?
Mostly, with one rough edge. Strength training sits on the calendar twice a week, two cutback weeks let the body absorb the load, and every hard run opens with a warmup. The catch is two of them: the Wednesday repeats and the Thursday tempo (a sustained block at goal pace) land on back-to-back days with only a strength day between, and the mileage jumps a little hard the week after each cutback. Easing the easy days around those two efforts is what keeps the back-to-back from stacking up.
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Flexibility
What happens when you miss a day?
Miss an easy run and the plan absorbs it without trouble. Skip the Saturday long run and you lose more, since that is where the race-day endurance gets built. Every workout carries a priority number, so when a week falls apart you can see which run to keep and which to let go. Pace, heart rate, or effort are yours to pick for each session. What the plan does not hand you is a rule for making up a long run you missed. That call stays with you.
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Readiness
Will the plan deliver race-day fitness?
Yes, and the proof is one session in week 9: five unbroken miles at goal pace, no walk breaks, a close preview of how race-day pace will feel late in the race. Goal pace shows up across eleven sessions in all, and the longest run reaches 14 miles two weekends out, with 3 of those miles run at goal pace while the legs are already tired. A two-week taper then drops the mileage and keeps the speed, so the fitness arrives rested.
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Variety
Are the workouts varied enough?
Plenty. The week holds easy runs, long runs, repeats at half-marathon pace (short fast segments with easy jogs between), sustained tempo runs, and a continuous pace run at the peak. The hard sessions keep changing shape as the weeks go: short repeats stretch longer, the tempo grows, and the pace work turns from broken into continuous. Short bursts called strides keep the legs quick across the whole build without adding real fatigue.
Workouts
Every Buena Vida training plan comes with detailed coaching notes and live workout guidance. Tap any workout to preview the notes for that day.
Today the plan stops being an idea and becomes the thing you actually do. Take this first stretch as reconnaissance, because the body needs a chance to remember the rhythm of training before anything ambitious gets stacked on top. The pace that should feel easy right now is the one you can hold a real conversation through, and if any run starts asking more of you than that, slow down without apology. You signed up for a hard thing, and the first move toward it is showing up steady.
M 4.5mi Easy Run
First run of the plan. Run 4.5 miles at conversational effort, the pace you could hold while telling someone about your day. Day one of week one is for showing up. Nothing here is meant to feel hard. If the watch beeps a pace that feels like work, ignore it and let the breath set the speed.
Tu Strength Training
W 4.5mi Easy Run
Second easy run of week one. Same 4.5 miles, same conversational effort. The job today is check: noticing what easy pace feels like in the body when you've already run once this week. The legs may feel slightly heavier than Monday. That's normal and not a signal to push or back off.
Th 4.5mi Easy Run
The legs that have lifted and run multiple times this week start to find a familiar shape today. Hold conversational pace. The build of week-on-week running comes from how easy these days are, not how fast.
F Strength Training
Sa 5mi Easy Run
First Saturday long run of the plan, only five miles. The point this week isn't distance. It's establishing that Saturday is the long-run slot. Run it at the same easy effort as the weekday runs. By mile four, the rhythm should feel as ordinary as Tuesday's.
Su Rest
There is nothing flashy about the second week of a plan, and that is exactly the point. The work right now is showing up to ordinary runs and letting them stay ordinary, because a base built out of unspectacular days is the only kind that holds when the training gets honest later. Notice if your body finds the rhythm a little sooner this time around, and notice if the easy effort starts to feel like a setting your legs already know how to find.
M 4.5mi Easy Run
Week two opens with 4.5 miles easy. The pace doesn't change from week one. Only the distance does. The first mile is where the body decides what kind of run today is going to be. Let it choose easy rather than letting the watch decide.
Tu Strength Training
W 4.5mi Easy Run
Mid-week easy run, 4.5 miles. Two weeks in, the body is starting to know what's coming on Wednesday. Run by feel. The pace today is whatever lets you finish thinking the run was uneventful, which is what easy days are meant to be.
Th 4.5mi Easy Run
Thursday easy, 4.5 miles. Week-two volume is growing slightly, but each individual run is still a casual one. If the legs feel heavy from Tuesday's strength, run shorter and slower rather than holding the planned distance at a hard effort.
F Strength Training
Sa 6mi Easy Run
Saturday long, 6 miles. A mile longer than last Saturday. Long-run pace lives at the same easy effort as your weekday runs. The change is duration, not speed. Around mile 4, you'll feel the difference between a 4-mile run and a 6-mile run start to register in the legs. That's the body learning what week-on-week growth feels like.
Su Rest
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Daily coaching notes, nutrition guidance, reschedule logic, and strength placement.
Plan Strengths
- Half-marathon pace shows up across eleven sessions, growing from short repeats early to a continuous five-mile block and three goal-pace miles inside the peak long run.
- Five clear phases with cutbacks at week four and week eight mean the peak week lands on rested legs instead of buried ones.
- Strength training sits on Tuesday and Friday and short strides finish most Monday runs, so the supporting work stays on the calendar without crowding the hard days.
- The peak week reaches 36 miles and easy running holds at about 80% of the load, the band trained runners thrive in.
- A two-week taper trims the mileage toward race day while keeping a little speed in the legs.
Weaknesses & Gaps
- Wednesday intervals and Thursday tempos sit on back-to-back days every build week, with only a strength day between two hard runs.
- The week right after each cutback ramps back up a little sharply, so the first week back asks for disciplined easy days.
- The peak long run reaches 14 miles, a touch more distance than a half strictly asks for.
What's missing
A few honest gaps sit in the schedule. Wednesday's intervals and Thursday's tempo run on back-to-back days, so Thursday lands on legs that worked hard less than a day earlier; the fix is to keep Friday's strength light and the Saturday long run truly easy, and resist letting easy pace creep up. The week right after each cutback ramps back up a touch fast, so treat that first week back as a return rather than a chance to chase the lost mileage. And the schedule assumes Saturday is free for the long run, so if it is contested, slide the long run to Friday or Sunday and shift the tempo to keep the recovery gap.
What the science supports
Race-pace specificity hinges on physiology
Eleven separate sessions across the build put you at nine-minute pace (half-marathon goal pace). Starting in week five, you run short repeats (fast bursts with recovery between) and sustained pace blocks where you hold goal pace for three miles, then five, then longer. By week nine, you've touched this pace in the Wednesday and Thursday sessions every single week for five consecutive weeks. By race day, nine-minute pace has stopped feeling like a stretch. It's become a rhythm your legs already know.
Pierce et al. 1990; Hewson & Hopkins 1996; Jones et al. 2021
Periodization beats constant-load training
The plan builds through two separate blocks, with a cutback week between them at week four. That cutback is when your legs absorb the first three weeks of goal-pace work before the second push begins. Weeks five through nine build steadily toward a peak week nine, where you'll run your longest distance and your hardest pace work together. Then weeks ten and eleven step the volume back intentionally before race day. This sequence of building, recovering, and sharpening is what separates running twelve weeks of work from simply running twelve weeks.
Bradbury et al. 2020; Tønnessen et al. 2014; Casado et al. 2022
Easy aerobic volume is the foundation
Most of your weekly miles sit at conversational effort, the pace where you could hold a real sentence the whole way. That easy effort shows up on Monday, Wednesday, and Thursday of every single week. Only the Wednesday and Thursday sessions in weeks five through nine push toward your goal pace, and when they do, you spend the other days at easy effort to recover. By keeping roughly eighty percent of your mileage easy and focused, you build the aerobic foundation that makes the harder sessions possible.
Haugen et al. 2022; Casado et al. 2022; Tønnessen et al. 2014
Long runs are essential for marathon
Your Saturday long runs grow from five miles in week one to fourteen miles in week nine, two weeks before race day. Week nine's long run tells you something shorter distances cannot. You run 5.5 miles easy, then three miles at goal pace while already fatigued, then 5.5 miles easy to close. That middle block is the closest preview of what mile eleven of race day will ask. You're holding pace when your legs are already tired, which is exactly what the final miles of a half-marathon demand.
Toresdahl et al. 2021; Jones & Kirby 2025; Casado et al. 2019
Tapering improves race performance by 2-6%
Weeks ten and eleven drop the volume from the thirty-six miles of peak week down to roughly twenty-six and eighteen miles respectively. The harder sessions disappear entirely, and the long runs step back from fourteen miles to eleven to ten. What stays is short bursts at the end of easy runs to keep your legs sharp without adding fatigue. This kind of taper drops your load while holding your fitness, and research shows it produces two to six percent performance gains on race day.
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