Running Plan Review Runner's World 10-Week Break 1:45 Half Marathon Training Plan
By Runner's World Requires purchase Visit plan website
Plan at a Glance
Most goal-time half marathon plans hedge their bets. They give you a heart-rate range, a perceived-effort number, and a pace target. A hot day or a windy track won't throw off the workout. This plan picks one. Every hard session is prescribed by pace, down to the second. Tempo runs go at 7:42 per mile, a sustained, faster-than-comfortable effort. Shorter intervals run 7:02 and one-mile repeats 7:10. If you train by the watch, the numbers tell you exactly what to chase.
A 1:45 half marathon means holding 8:00 per mile for 13.1 miles without breaking form. That's the gear where racing starts to feel different from running. The runners who get there usually share a quiet history of mileage already in the legs, not a recent ten-week push. The most common mistake at this time goal is jumping in from a finish-it plan. The paces are too sharp for a thin base, and the workouts punish anyone who hasn't been training regularly for months beforehand.
The plan comes from Runner's World, the American running magazine that has been publishing training schedules since the 1960s. It runs ten weeks, five or six days a week, and assumes you've held around 30 miles a week for the past six months. The long run climbs from 10 to 16 miles. Two hard sessions land each week, one a tempo and one an interval set, with the other days logged as easy running.
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
Workout names and distances only. Coaching prose belongs to the plan’s author.
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Our Review
You're an intermediate runner who has held 30 miles a week for at least six months and now wants to break 1:45 in the half marathon. The plan asks you for ten weeks, five or six days of running, and one tempo or interval session plus a long run that climbs from 10 to 16 miles. You'll need to hold 8:00 per mile to break 1:45.
You'll get explicit pace targets at every prescription. Easy runs go at 9:37 and tempo at 7:42 per mile. Intervals run 7:02 to 7:06 and mile reps 7:10. If you run by the watch, you know exactly what to chase. You won't get a heart-rate or RPE backup for the intervals, though, so a hot day or a windy track leaves you guessing.
You'll work without three things you might expect. The plan never schedules a recovery week. Strength work never lands on a calendar day. And the plan offers no playbook for the week your training slips: no priority, no cut rule. You're on your own if you arrive a mile or two short of the base or lose a week to illness. You'll add the recovery week and the strength sessions yourself.
You'll like the speed work and the depth of the interval menu. You'll move through 400s, mixed 400/800 ladders, and 800s. Mile reps run at 7:10, and 1200s round out the menu. The formats shift meaningfully week to week. Tempo blocks at 7:42 sit faster than goal pace, so you should feel race pace as a downshift on race day. By week 8 you'll have run a 6-mile tempo block at 7:42, the closest dress rehearsal the plan offers.
Pick this plan if you've raced a half in 1:45 to 1:55 within the past year and want a goal-time framework with explicit paces. Layer in your own recovery week and a short strength routine. Look elsewhere if you want a heart-rate alternative, a scheduled strength block, or guidance for the week your training slips.
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Structure
Does the plan build you up smartly?
Partly. The shape is recognizable, opening with tempo runs in the first few weeks, moving into mile reps and longer intervals through the middle, then landing a 10-mile tempo dress rehearsal in week 8 before a two-week taper. Every hard session is fully spelled out, from warm-up through reps, paces, and cool-down. The gap is recovery rhythm. No lighter week ever drops into the eight-week build, so the work climbs without a planned place for the legs to reset.
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Prevention
Does the plan protect you from injury?
Not really. Across the entire eight-week build, no recovery week ever arrives to let fatigue clear. Strength work is named once inside the optional cross-training slot and never actually scheduled. And while the plan mentions form and fueling, it carries no list of warning signs and no plan for what to do when something hurts. The load itself rises at a reasonable rate, but with no recovery week and no strength, you would be building your own safety margin on a plan with sharp paces.
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Flexibility
What happens when you miss a day?
This is the plan's weakest point by far, and a missed week leaves you with almost nothing to lean on. There is no ranking of which runs to protect, no rule for a missed long run, and no scaled-back opening if you arrive a few miles a week short of where it expects you. The whole schedule assumes you start already fit, around 30 miles a week with sharp 5K speed, and it stays rigidly on rails from there. When life interrupts, every adjustment is yours to invent.
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Readiness
Will the plan deliver race-day fitness?
Partly. The race-pace preparation itself is genuinely good. Tempo runs at your faster-than-goal pace climb to a 6-mile block by week 8, the goal-pace interval work runs throughout, and an optional 5K tune-up sits in week 6, with the two-week taper holding the speed while volume drops. What holds this back is not the rehearsal but the build under it. With no recovery weeks across the eight hard weeks, arriving genuinely fresh enough to hit 8:00 pace on the day is the real risk, and managing that freshness is left to you.
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Variety
Are the workouts varied enough?
Yes, the harder work is varied and well built. Two speed sessions a week move through six interval formats, from 400-meter repeats and mixed sets up through ladders, mile reps at two paces, and tempo blocks, and every rep carries an exact pace. Six run types in all fill the week, and the speed work shifts meaningfully from phase to phase. The clear absence is anything off the running, with no strength work or strides scheduled and cross-training left as an option rather than a planned session.
Plan Strengths
- You'll meet six distinct interval formats across ten weeks. The mix runs 400s, mixed 400/800 sets, and 800-rep sessions. It also brings mile reps at 7:10, 1200s, and ladder workouts that build up and back down.
- Pace targets are explicit at every hard rep. Tempo is 7:42, intervals run 7:02 to 7:06, mile reps 7:10. If you run by watch, every workout tells you exactly what to chase.
- The week 8 tempo asks for 6 miles at 7:42, faster than goal pace on tired legs, so 8:00 should feel like a downshift on race day.
- Two full taper weeks follow the 16-mile peak in week 7. Volume drops from 41 miles to roughly 14 in race week, with a short sharpening session three days out.
- Pick the 5K tune-up race option in week 6 for the only built-in fitness check on the calendar.
Weaknesses & gaps
- No recovery week appears on the calendar across weeks 1 through 8. Weekly mileage holds 30 to 41 with the long run alternating, but no week drops to roughly 70% of peak.
- You won't find strength training scheduled. The plan names it only inside the cross-train option definition as one item among many.
- If a week unravels for work, illness, or travel, you're on your own. There's no priority order on sessions, no cut rule, no make-up guidance.
- Without a heart-rate or RPE backup, you're stuck running by pace alone. On a hot day or a windy track, the watch number can be the wrong target.
- The plan assumes 30 miles per week for six months and sub-21 5K fitness without saying so. If you land a few miles a week short of the base, the prescribed paces will be the wrong target rather than a stretch.
- There's an avoidable spike in week 5: the long run jumps 12 to 14 miles in the same week intervals add a 1-mile rep. The pattern repeats in week 7 when peak volume lands alongside two mile reps and a 16-mile long run.
What this plan does not give you
The plan never schedules a recovery week across the eight-week build. If you've trained at this kind of volume before, your body knows the signal. When a workout feels harder than the prescribed pace says it should, drop your mileage 25 to 30 percent the following week on your own. Strength work is mentioned only as one option inside the cross-train choice, so the routine itself is up to you. Two short sessions a week will cover the gap. Run squats, lunges, single-leg work, and core after an easy run. There's also no playbook for the week your training slips. If you lose a long run, repeat the previous week's distance the next weekend rather than trying to make up the missed miles all at once.
What the science supports
Keep easy days easy, hard days hard
Most runs are easy at 9:37 per mile or slower, conversational effort. Your hard days happen twice weekly. Wednesdays bring intervals at 7:02 to 7:06 per mile. Sundays bring either long runs or tempo work at 7:42 per mile. This clear split between easy and hard lets your body recover fully on easy days while adapting to the speed work when it counts.
Stöggl & Sperlich 2014; Casado et al. 2022; Kenneally et al. 2017
Long runs are essential for marathon
The plan climbs from a 10-mile long run in week 1 to 16 miles by week 7, the peak week. These long runs build the aerobic foundation and mental toughness needed for race day. The progression matters: you can't substitute shorter, faster runs for the work these long runs do in teaching your body to sustain effort when fatigued.
Toresdahl et al. 2021; Jones & Kirby 2025; Casado et al. 2019
Race-pace specificity hinges on physiology
The plan prescribes tempo running at 7:42 per mile, faster than your race goal of 8:00 per mile. This matters because your body adapts most to training at or above your lactate threshold. Running tempos at 7:42 improves your ability to hold 8:00 on race day by raising the effort at which your body starts to accumulate fatigue.
Pierce et al. 1990; Hewson & Hopkins 1996; Jones et al. 2021
Tapering improves race performance by 2-6%
After the 16-mile peak in week 7, volume drops sharply. Week 9 cuts the long run to 8 miles, and race week cuts to just 14 miles of total running with a short sharpening session midweek. This two-week taper restores your legs while keeping them sharp, so you arrive at the start fresh and ready to race.
Threshold gains are pace-specific
Every hard workout specifies exact paces: 7:42 for tempo, 7:02 to 7:06 for intervals, 7:10 for mile reps. This precision matters because your body adapts to the specific pace you train at, not to general effort. These running-specific pace targets build threshold adaptations that transfer directly to your half-marathon.
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Frequently asked questions
- Is Runner's World 10-Week Break 1:45 Half Marathon Training Plan good for beginners?
- No. Runner's World 10-Week Break 1:45 Half Marathon Training Plan is built for intermediate-level runners. A true beginner should start with a lower-mileage plan.
- How many days per week does Runner's World 10-Week Break 1:45 Half Marathon Training Plan require?
- The plan runs on a schedule of multiple weekly runs. See the at-a-glance strip for the exact count.
- Does Runner's World 10-Week Break 1:45 Half Marathon Training Plan include a taper?
- Yes, the plan includes a taper into race week.
- What is the rubric grade for Runner's World 10-Week Break 1:45 Half Marathon Training Plan?
- Runner's World 10-Week Break 1:45 Half Marathon Training Plan grades D on the Buena Vida rubric.