Stridelab
Pay once · No subscription

A training plan built the way a coach writes one.

5K to marathon. Every run dated and paced from your fitness — with the reason behind it, and the strength work that keeps runners durable woven into the same calendar. See your projected finish time before you spend a cent.

Specimen — half marathon25:00 5K runner
Today 1:54:57 → trained
1:51:59
range 1:50:47 – 1:53:12
14 weeks · peaks at 30 mi
How it works
01

Tell us where you are

Your race, your date, a recent result — any distance. Two minutes, no account, no card.

02

See the whole shape — free

Your projected finish time, every phase, every week’s mileage, and week one in full. Judge the plan before you pay a cent.

03

Pay once. Own it.

One payment unlocks every dated, paced workout — with the coaching reason behind each one — plus calendar export. No subscription to cancel.

Every run carries its reasonfrom a real generated plan
Tempo RunWed · 54 min · 8:56/mi

The tempo run develops your lactate threshold, allowing you to sustain a faster pace without fading. Warm up thoroughly before settling into a steady, comfortably hard effort — sustainable discomfort, not all-out.

Why this run, here

Positioned midweek in week 6, this follows easier sessions so you can execute quality work, and sets up the weekend long run. The 54-minute duration is a deliberate step up in sustained tempo time as the build phase progresses; 8:56 per mile sits right at your threshold — the pace that moves your race pace.

One price, one plan, yours
Stridelab
$19
once, per plan
  • · Paces derived from your recent result
  • · Fitted to your race date, ends race week
  • · Runner-strength sessions on your gym days, deloading with your mileage
  • · Coach briefing + rationale on every session
  • · Projected finish range, shown before purchase
  • · Calendar export — own the file forever
Start free
A typical training app
$144
$12/mo through one marathon build
  • · Keeps charging after race day
  • · Cancel-flow scavenger hunt included
  • · Your plan lives behind their login
Free instrumentsthe same math the plans use
Fair questions

How is this different from a free plan PDF?

A PDF prescribes the same paces to everyone. Stridelab derives every pace from your recent race result (Jack Daniels’ VDOT model), fits the plan to your actual race date, and explains why each run sits where it does. It’s the difference between a poster and a prescription.

Why not a training app subscription?

Most runners train for one race at a time. Paying $10–15 every month for a 12-week build is renting. A plan is a finite thing — you should be able to buy one.

What exactly do I get?

Every workout dated and paced, a coach briefing for each session, the rationale behind it (why this day, this distance, this pace), your projected finish range, and an .ics file that drops the whole plan into any calendar app.

Why is strength in a running plan?

Because durable runners train more and race faster. Two short sessions a week — single-leg work, posterior chain, calves, core — scheduled on your gym days, deloading when your mileage deloads, dropping to maintenance in race week. It’s on by default; turn it off in the wizard if you have your own routine.

What if my race is far away — or very close?

Far out, the plan delays its start so it peaks exactly into race week. Too close for a sound build, and we’ll tell you honestly instead of selling you a compressed plan that can’t work.

Where do the predictions come from?

Published running science — VDOT and Riegel’s endurance model — applied to your result. The full math is on the methodology page. No black box.

Want the receipts? Read the full methodology.