Your bio is a sales tool, not a CV. A potential client reads it in about eight seconds and decides whether you are the trainer for them — so it has one job: make the right person feel understood and invite them to take the next step. This guide walks you through the five steps I use to write bios that do exactly that, with a real before-and-after rewrite and the mistakes that quietly cost trainers clients.
Before you write a word about yourself, decide who this bio is for — not everyone who might conceivably hire you, but one clear person. Busy parents who want to get strong. Runners chasing a first marathon. Women returning to training after a baby. Name them plainly, in the words they would use about themselves. This feels risky, because it seems to turn people away. It does, and that is the point: a bio written for one person is the one that makes the right client stop and think 'that is me'. A bio written for everyone slides past unread.
Once you know who you help, say what changes for them. Clients do not buy training sessions; they buy the outcome those sessions produce — the confident deadlift, the back that no longer aches by Friday, the energy to keep up with their kids. Name that transformation in concrete terms and lead with it. 'I help you get strong enough to carry the shopping and the toddler at once' beats 'I offer strength and conditioning programming' every time. Picture the moment your client's life is visibly better because of your work, then describe that moment. That is what they are paying for.
Now, and only now, add proof — lightly. You have earned the right to mention your experience once the reader knows you understand them. Weave in a single credible detail: the years you have coached, the number of clients you have helped, one specialism, one signature result. One line is plenty. The mistake is opening with a stack of certifications, because a qualification list answers a question nobody asked. Trust comes from showing you get the client's problem first and can prove you solve it second. Keep proof in a supporting role and it does far more work than a CV ever could.
End by telling the reader exactly what to do next — one step, not a menu. Book a free intro call. Send me a message. Drop into a Saturday class. A single, specific invitation converts far better than a vague 'get in touch', and infinitely better than no ask at all. Most trainer bios describe the trainer beautifully and then just stop, leaving the interested reader with nowhere to go. Do not waste the attention you just earned. Decide the one action you most want a new client to take, and ask for it plainly.
Now cut. Your first draft is always too long — trim it to somewhere between 40 and 80 words, because a bio is read in a glance, not studied. Delete the throat-clearing, the adjectives doing no work, the second niche that crept in. Then do the thing almost nobody does: read it aloud. If it sounds like you talking to a client across a gym floor, you are done. If it sounds like a brochure or a LinkedIn summary, rewrite the stiff parts the way you would actually say them. Your bio should sound like a person, because a person is reading it.
Before — the certification wall
Jordan is a Level 3 qualified personal trainer and certified strength and conditioning specialist with additional qualifications in nutrition, kettlebell training, and pre and post-natal exercise. Jordan is passionate about fitness and helping people reach their goals. With a background in sports science and years of experience in the fitness industry, Jordan is committed to delivering the highest standard of professional service to every client.
After — first person, outcome-led
I help new mums rebuild their strength and confidence after birth — no punishing bootcamps, no bouncing back, just getting genuinely strong again on your own timeline. Over six years I have coached hundreds of women from their first post-natal session to lifting heavier than they did before pregnancy. If you are ready to feel like yourself again, book a free call and we will start gently.
The rewrite picks one client — new mums — and leads with what they actually want, so the right reader feels seen in the first line. The certifications shrink to a single line of proof, and a warm, specific call to action replaces the dead end. Same trainer, same qualifications; one version turns a visitor into an enquiry and the other reads like a filing cabinet.
Cert dumping
Opening with a wall of qualifications before the reader has any reason to care who you are.
Five niches at once
Trying to be the trainer for everyone, which makes you the obvious choice for no one.
Stiff third person
Writing "Jordan is passionate about fitness" when a first-person voice reads warmer and more human.
No call to action
Describing yourself and then stopping, leaving an interested reader with nowhere to click.
First person, almost always. 'I help busy parents get strong' reads warmer and more human than 'Jordan helps busy parents get strong', and it mirrors how you would actually introduce yourself to a client. Third person can suit a formal directory or a press profile written about you, but on your own page, Instagram or website, first person builds the personal connection that turns a reader into an enquiry.
Leave out anything that is not earning its place: a long list of certifications, generic filler like 'passionate about fitness', your whole career history, and any attempt to appeal to every possible client at once. A bio is not a CV. Keep the one credential that matters most, cut the rest, and use the space you save to name who you help and the result you get them.
Everywhere a potential client meets you: your website or link-in-bio page, your Instagram profile, gym staff pages and any directory you are listed in. Keep a short version — around 40 to 80 words — for tight spaces like Instagram, and a slightly fuller one for your website. The wording can flex to fit, but the message stays the same: who you help, the outcome, light proof, and a clear next step.
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