Running Plan Review Buena Vida Run Club's 16-Week Sub-1:45 Half Marathon (5 days)
Who’s behind this review? Buena Vida is a running app made by David Cole, a Seattle runner & triathlete who led design and research for Amazon’s Halo fitness band. This is one of Buena Vida’s own plans, so we have an obvious interest in how it compares. It’s scored on the same 30 measures as every plan we review, each tied to published research, and its weaknesses are published below. AI does the first scoring and draft, then every claim is checked against its studies. No plan author pays to be reviewed, and we run no ads. See a mistake? Email David at corrections@buenavida.run · How we score →
Plan at a Glance
Most runners who miss a sub-1:45 half don't miss it at mile 6. They miss it in the last 3 miles, when the pace they held all morning starts costing more than they have left. This plan is built around those 3 miles.
It does that with one week, repeated and stretched. Tuesday is goal pace: short repeats with a jog between at first, then full miles, and in the last stretch a long continuous run at the pace you mean to race. Thursday is threshold, a notch faster than goal pace, and it grows a little longer almost every time you meet it. Saturday is the long run, easy all the way until the biggest one, which carries a stretch of goal pace in its middle. Sunday is a shorter run on the legs Saturday left you, every weekend, the lighter ones included. That pairing is the plan's signature. It lets you practice the tired back half of a half marathon without racing in training.
The rest is easy running, and easy running is most of the plan. Every fourth week or so the Tuesday and Thursday sessions drop out and the mileage falls, so the work has room to land. That's what the longer build buys over a shorter one: room for those lighter weeks between three separate blocks of sharpening. The fifth day is the Sunday run, the one a 4-day version gives up. By race morning, goal pace isn't something you're reaching for. You've been meeting it on Tuesdays for months.
Come in already running about 30 miles a week, ideally with a previous half and a block of harder sessions behind you. The biggest week reaches about 53 miles. Wednesday holds a strength session, Friday is yours, and the race is on a Sunday.
Our full review of the plan follows. We grade every plan on the same 30-point benchmark, with each measure drawn from peer-reviewed sports-science research and proven coaching best practices.
Similar plans
Our Review
When you've come close to 1:45 and want to get under it at last, this is an excellent plan to run. It builds the two things this goal asks for, comfort at goal pace and a threshold that sits above it, on Tuesday and Thursday with a strength day between them and Friday and Monday buffering them from the weekend. Both sessions grow by getting longer, not faster, from short repeats in the first week to 7 continuous miles at goal pace in the peak week. Some Tuesdays get big enough to surprise you: in weeks 9, 10 and 14, the 8 by 1 mile session runs longer than that Saturday's long run. Around all of it sits a lot of easy running, regular lighter weeks and a deep taper, and every weekend pairs the long run with a Sunday medium-long.
The gaps are small. The long run climbs out of each lighter week in big steps, and the week after the first lighter week brings everything back at once. Neither changes the verdict. This is a plan to trust.
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Structure
Does the plan build you up smartly?
Mostly. Goal pace and threshold arrive together in the base and stay the two hard sessions until the taper, so the emphasis never shifts between blocks. What changes is length: the sessions get longer rather than faster, and Tuesday turns from repeats into continuous goal-pace running late in the build. Each of the 26 hard sessions spells out its warm-up, main work and cool-down, with a note on why it's there. The phases are named on the calendar, so the shape of the build is clear from any week.
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Prevention
Does the plan protect you from injury?
Easy running is this plan's main defense, and there is a lot of it. About 80% of the running is easy, Wednesday's strength session splits Tuesday from Thursday, each of the 26 hard sessions starts with an easy mile or two, and in weeks 4, 8 and 12 the hard sessions drop away entirely. Mileage climbs from about 30 a week to a peak of about 53 with no outsized step inside a block. The week that asks the most is the one after the first lighter week, when both hard sessions return at their longest yet and the long run passes 10 miles. The weekly total sits only a little above the week before the cutback, but everything comes back at once, so run that week with care. The other thing to watch is Monday. It's the third run in a row after the weekend pair and the day before goal-pace reps, and heavy legs make it tempting to "shake them out" at a moderate clip. Keep it slow enough to talk the whole way. Tuesday's goal-pace reps are the reason to hold back.
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Flexibility
What happens when you miss a day?
The plan ranks its sessions, which makes the call easy. Tuesday's goal-pace work, Thursday's threshold run and Saturday's long run come first. Monday's easy run and Sunday's medium-long are the ones to trim or drop when life crowds in, and Wednesday strength is the most movable. Friday is open, so a missed Thursday can slide a day, but a full tempo the day before the long run is a lot to carry. Shorten it, or let it go. If you lose a full week, start again from that week's Tuesday as written instead of making up the lost sessions, and never fold missed goal-pace reps into Thursday's threshold run.
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Readiness
Will the plan deliver race-day fitness?
Goal pace sits at the center of this build. Peak mileage and a longest run of 15 miles sit comfortably in range for a half marathon at this goal. The race-specific work grows steadily: goal-pace mile repeats, then 5 and then 7 continuous miles at goal pace, then a 15-miler with 3 goal-pace miles in the middle, so the pace gets rehearsed on tired legs. In coaching terms, the Thursday threshold work adds a second, steadier kind of hard running alongside the goal-pace sessions. The taper cuts mileage hard in race week while keeping a short pace session and strides, and a taper like that improves race performance. The one reservation is the long run's step back up after each lighter week, which is bigger than the rest of its climb.
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Variety
Are the workouts varied enough?
Every kind of run in this plan points at the half marathon. You'll run easy runs, long runs, medium-long runs, goal-pace intervals, continuous goal-pace runs, threshold tempos and the race itself, and the Tuesday session keeps changing shape (half-mile, three-quarter-mile and full-mile repeats, then continuous blocks). One thing may surprise you: the Tuesday reps run at goal pace, not faster. If your idea of intervals comes from track nights and 5K plans, you'll be tempted to push. Don't. These reps are rehearsal, and the harder work is Thursday's threshold. Keeping the hard running close to race pace suits a half-marathon goal.
Workouts
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You signed up for this build knowing what it would cost. A faster half marathon asks for that kind of commitment long before it asks for speed. The early weeks here are not a ramp into shape. They are the floor everything later stands on, so the relative ease of these days is on purpose. Give yourself a few days to find the rhythm. There is a long stretch ahead, and starting unhurried is part of what makes the back half possible.
M 5mi Easy Run
5 miles at conversational effort. This is the first run of the plan. The easy effort here is the standard for every easy day that follows. The pace where you can hold a full sentence and the end of the run feels like there's another mile in the legs (that's the line). Most runners coming into a half marathon build with a goal like yours run their early easy days a click too fast. This is the week to set the floor, not test it.
Tu Intervals: 4×0.5mi @ ½ Marathon
First interval session of the plan. 2-mile warmup, then 4 by 0.5 mile at half-marathon goal pace (7:57/mile) with 400 m recovery jogs, then a 2-mile cooldown. Goal pace (not faster). This rep length rehearses the half you're chasing, not a 5K. The rep that succeeds is the one that closes as cleanly as it opened. Repeats break hard running into pieces the body can absorb, building speed without breaking form. Run the first rep like you plan to enjoy the last one.
W Strength Training
Th 4.6mi Tempo Run with 2.6mi @ Tempo
First tempo of the plan. 1-mile warmup, 2.6 miles at threshold (a click slower than 10K pace), then a 1-mile cooldown. At threshold, breathing is rhythmic but conversation is short. Threshold sits faster than goal pace. That makes it a different kind of training from 7:57/mile work. Today is for finding the edge, not riding it. Sustained efforts like this sit at the pace you can hold for about an hour. The session was a success if the final stretch held pace without the form unraveling.
F Rest
Sa 8mi Long Run
8 miles easy, at a fully conversational effort. This is the first long run of the plan. The long runs are where the second half of the race is built. Every mile here is one fewer mile that mile 11 has to ask of fresh legs on race day. Stay in the easy lane. If full sentences stop coming easily, ease back. From here the long run climbs gradually to 15 miles.
Su 5.5mi Medium-Long Run
5.5 miles easy on the back of yesterday's long. The Sunday medium-long is the architectural choice that distinguishes this 5-day build, and it's the workout that earns you the back half of race day. The legs will feel a step heavier than Saturday's first mile did. That's the point. Don't chase the pace. Let the rhythm find itself.
The Saturday and Sunday pairing is what your body has to learn first in this plan, and you are in the middle of learning it. Breathing and heart catch up to harder running fairly fast. The tendons and small muscles that carry you through two demanding days in a row take longer, and they show their progress more slowly. If Sunday feels stiffer than Saturday warranted, that is not a complaint about the extra running. It is a sign the right parts are being asked to get stronger.
M 5mi Easy Run
The first easy day after a back-to-back weekend. Tuesday's intervals tomorrow, so today is genuinely about recovery. Most runners chasing a target like yours push Mondays a tick too hard and pay for it on Tuesday's reps. Protect the easy effort here so the goal-pace work goes cleanly.
Tu Intervals: 5×0.5mi @ ½ Marathon
2-mile warmup, then 5 by 0.5 mile at half-marathon goal pace (7:57/mile) with 400 m recovery jogs, then a 2-mile cooldown. 5 reps this time instead of 4. The first three should feel like warming into the pace. The question is whether rep 4 and rep 5 hold the same shape. The rest between reps is what lets the work stay fast from first to last. If a rep felt easy, hold that restraint. The set is the workout, not the rep.
W Strength Training
Th 4.8mi Tempo Run with 2.8mi @ Tempo
1-mile warmup, 2.8 miles at threshold, 1-mile cooldown. The tempo grows by a small step. The body learns threshold by repetition, not by leaps. This session is steady, comfortably hard running, held without surging. The sustained stretch builds the strength to stay smooth when the effort gets uncomfortable. Comfortably hard means a few words at a time, never full sentences. If you finished able to imagine one more mile, the effort was judged right.
F Rest
Sa 8.5mi Long Run
8.5 miles aerobic. This one is 0.5 miles longer than the one before. Effort, not pace, is the measure. If today feels harder than the 8-mile run did, the week's running is already showing up in the legs.
Su 6mi Medium-Long Run
6 miles easy, the day after the long run. Pace stays conversational. The second-day stiffness in the first mile or two is normal and usually clears around mile 3. The long run stretches endurance by keeping you out there longer, not by going faster.
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Plan Strengths
- Goal pace and threshold are built side by side, on separate days, each growing by length rather than speed.
- Every weekend pairs the Saturday long run with a Sunday medium-long, the plan's signature.
- Four lighter weeks break up the load, and in three of them both hard sessions drop away, so you get real relief before each new climb.
- Race-pace rehearsal escalates all the way to 7 continuous miles and a 15-miler with goal pace in the middle.
- A deep taper that still keeps short touches of goal pace, threshold and strides in race week.
Weaknesses & Gaps
- The long run climbs out of each lighter week in big steps (7 to 10.5 miles, then 8.5 to 12.5).
- The week after the first lighter week brings both hard sessions, a longer long run and a big mileage rise back at once.
- Both gaps sit in the same place. The first days back after a lighter week, not the peak, are where the plan asks the most of you relative to what came before.
What's missing
Coming out of the first lighter week, you'll find no gentle step back in. Make one yourself: run a rep or two fewer on Tuesday and hold Thursday's tempo near the length you ran before the cutback, then rejoin the plan as written. Treat the long run the same way after each lighter week, running the first long one back at the easiest end of aerobic so the bigger distance is the only new thing that day. Beyond that, two optional add-ons for runners who want them. Strides already show up in race week, and adding 4 to 6 of them (about 20 seconds each, quick and relaxed, with full recovery) to the end of Monday's easy run through the middle of the build is a cheap way to practice quick, relaxed running. And if you'd like a pacing check, a 10K or 5-mile race in place of a Thursday tempo during a mid-build block can serve as race-day rehearsal. Run it controlled, a gear short of racing, and treat it as practice for pacing, not a fitness boost.
What the science supports
Shifting training emphasis beats unchanging training
The plan cycles through three build-recover patterns rather than one long climb. Lighter weeks at weeks 4, 8 and 12 sit inside the build and ease the load before the next block starts. Each cycle returns to goal-pace work and threshold tempos with longer reps and tempos than the cycle before. Planned changes in training like this tend to beat holding the same load throughout, and which model a plan follows matters little.
Filipas et al. 2021; Bradbury et al. 2020; Sandbakk et al. 2025
Easy miles do most of the work
Of the 5 running days, 3 are easy: Monday's run, the Saturday long run and the Sunday medium-long. With the warm-ups and cool-downs, about 80 percent of the miles stay conversational as the week grows to a 53-mile peak. Easy running is most of a runner's weekly mileage, and it forms the base that carries harder work like Tuesday's goal-pace reps and Thursday's threshold tempos.
Threshold or race pace: neither proven better
Goal-pace work fills 13 Tuesday sessions, from half-mile reps in week 1 to 8 repeats of 1 mile and continuous runs of 5 and 7 miles, enough that goal pace stops feeling like a stretch. Thursday's threshold tempos add a different kind of hard running. For recreational runners, race-pace work and threshold work are both reasonable, and no study shows one beats the other. This plan gives each its own day.
Smyth & Muniz-Pumares 2020; Jones et al. 2021; Vickers & Vertosick 2016
Longer long runs go with faster marathons
The long run climbs to 15 miles by week 13, about 2 miles past race distance. Outside the cutback and taper, Saturday long runs from week 9 on cover 12 to 15 miles and last well past 90 minutes at easy effort. Early evidence links longer long runs with faster marathons, though no study has tested whether shorter, faster sessions could replace them. For the half, these Saturdays rest mostly on coaching practice.
Doherty et al. 2020; Fokkema et al. 2020; Toresdahl et al. 2022
Strength training makes running more efficient
A strength session sits on every Wednesday for the first 15 weeks, held steady while running volume climbs from about 30 miles to a 53-mile peak in week 13. Trained runners who add strength work usually become 2 to 8 percent more efficient, burning less energy at the same pace, a measure called running economy.
Blagrove et al. 2018; Balsalobre-Fernández et al. 2016; Šuc et al. 2022
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