Half-marathon training · 6–20 weeks · 3–6 runs/week
PaceForm builds your plan on Jack Daniels' VDOT methodology — calibrated to your goal time, your schedule, and your race history. Every session has a reason. No jargon. No guessing.
Built on Jack Daniels' VDOT methodology · Riegel race prediction formula
Why free plans fall short
✗Assumes 5–6 days a week — impossible for busy runners
✓3–6 runs/week · built around your schedule, not an ideal one
✗Just numbers — no explanation of why
✓Every session has a plain-English reason you'll actually remember
✗Same plan for every runner regardless of fitness
✓Jack Daniels VDOT paces calibrated to your goal time and race history
Other plans give you paces.
This one tells you why.
Designed around real life
Every training plan assumes perfect compliance. Parents, managers, and people with full lives don't get perfect weeks. PaceForm plans are built around that reality — the rules for when life gets in the way are printed right in your PDF.
📅
Missed an easy run?
Skip it and move on. Easy runs support the quality sessions — weekly consistency over 12 weeks matters more than any individual day.
⚡
Missed a tempo or intervals?
Reschedule within 48 hours, or drop it. Never stack two quality sessions back-to-back to compensate — that's where injuries happen.
🗓️
Off sick for a week?
Drop back one week in the plan and continue. Don't try to catch up — your goal is still achievable.
These rules are printed in your PDF — no app needed to find them at 6am before a run.
★★★★★
“Had 10 weeks before my first half. Followed this exactly and crossed the line in 2:06. The session notes actually taught me how to run tempo properly.”
Sarah M.
Bristol · first HM
★★★★★
“Dropped from 1:58 to 1:51 on a 4-day schedule. The progressive load felt hard but manageable — never felt close to injury. 7-minute PR.”
Tom K.
Munich · 4 runs/week
★★★★★
“Was sceptical about paying for a plan. The 'why' behind every session made it click. Ran 1:44 and felt strong at mile 11 for the first time ever.”
Lena R.
Amsterdam · experienced
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Free training guides
Half Marathon Training Plan: Complete Guide
How to structure a half marathon training plan from scratch. Covers weekly mileage, run types, the four training phases, the 10% rule, and how to taper correctly.
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How to Run a Sub-2-Hour Half Marathon
What pace you need, what fitness level is required, and the three key workouts that will get you under 2 hours in a half marathon. Includes a sample training week.
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Half Marathon Training on 3 Days a Week
Can you train for a half marathon on just 3 days a week? Yes — if you structure those three runs correctly. Here's how, with a sample schedule.
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Half Marathon Training for Beginners: Start Here
A complete guide to half marathon training for beginners. How long to train, what pace to run, what a realistic finish time looks like, and how to stay injury-free. Includes a sample 12-week plan.
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Half Marathon Race Day Strategy: Stop Going Out Too Fast
How to pace a half marathon correctly from the start. Why runners blow up at km 15, how to handle the first 3 km, what to eat and drink, and how to run a negative split.
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Why You Need to Run Slower to Get Faster
Why most runners run their easy days too hard and their hard days too soft. How to find your easy pace, what zone 2 training does, and why embarrassingly slow runs build the engine that race pace runs from.
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Missed a Training Run? Here's Exactly What to Do
Missed one run, one week, or two weeks of half marathon training? Here is exactly what to do — whether to restart, skip, or adapt. Includes guidance for illness, injury, and travel.
Read guide →
Half Marathon Training for Busy People
How to train for a half marathon when you have a full-time job, kids, and limited time. A realistic guide to 3–4 day training weeks, what to cut when life intervenes, and how to still hit your goal.
Read guide →