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2026-10-15 issue

Observed arrival · 2026-10-15

Achilles: training that reads the body before the calendar

achilles.fitness Visit website
Editorial interest 82/100 Selection signal · not a rating of the site

Achilles presents an iPhone training app for multisport athletes, combining readiness estimates, progressing workout plans, and tools for fuel and mental training.

Landing page captured for the 2026-10-15 issue.
For
Multisport athletes balancing lifting and endurance
Worth noticing
Readiness compares five sleep and heart metrics with a rolling 30-day personal baseline; missing inputs are reweighted rather than imputed.

Field notes

The page describes a morning readiness score built from heart-rate variability, resting heart rate, sleep duration, sleep quality, and sleep efficiency, each compared with a rolling 30-day personal baseline. Missing measurements are reweighted rather than filled in, and the page says the score is deterministic while AI only reads it. Its strength progression adds reps before weight, then resets after three stalls with a 10% reduction.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central

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Landing page observed 2026-10-15. The live site may have changed.