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Guides

Read this before
you pay anyone.

Three short guides from the coaching staff. Plain language, real numbers, no hype. Leave an email and the full guide is yours.

Parent guide

Youth speed: what actually improves, and when

A short, honest guide for parents: what changes speed in a 10–18-year-old, what doesn't, and how to tell the difference in six weeks.

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Athlete guide

What your force plate numbers mean

Jump height, peak force, RFD, asymmetry — the four numbers on your report, what each changes about your program, and which ones are worth chasing.

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Member guide

Your first month at Onyx

What to expect from the first free class to week four: how classes are built, how to read the app, and what changes first.

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Start with a free visit.

Two questions route you to the right first step: a free class, a youth evaluation, an assessment or a call.

Book your first visit