
Tools and providers
How to brief a fitness creator for a UK gym open day or challenge
A brief template for UK gyms booking a fitness creator for an open day or challenge, covering deliverables, fees, disclosure, health claims and measurement.
What to take away
- A brief for one dated event names the venue, the time, the audience and the single result you want, such as a target number of booked trials.
- List every deliverable with format, length, deadline and where it must be posted.
- Put fees, content rights and disclosure wording in the same document and sign it before filming.
- Track sign ups with a named link or code, then review cost per attendance one week later.
Decide the campaign shape first
A gym open day and a six week challenge need different briefs. An open day sells a visit on a fixed date. A challenge sells a repeated habit over weeks.
Open day vs six week challenge
Open day
- Goal
- Sell a visit
- Timing
- Fixed date
- Brief focus
- Door times, postcode
- Creator ask
- One day push
Six week challenge
- Goal
- Build a habit
- Timing
- Repeated over weeks
- Brief focus
- Repeat posts, progress
- Creator ask
- Sustained content
Write the event type at the top of the brief. Add the date, the door times and the postcode. Creators work from diaries, so vague windows cause missed posts.
If you have not chosen anyone yet, read how to hire a fitness influencer for your UK gym or studio before drafting the brief. Catchment checks and fee benchmarks should come first.
Write deliverables as a numbered list
Each line should hold one asset, one platform and one deadline.
Numbered deliverables to brief
- TikTok video, 30-45s, 3 days before
- Three Instagram Stories on the day
- Instagram Reel within 48 hours
- Photo set within five working days
- Follow up post two weeks later
- One TikTok video, 30 to 45 seconds, published three days before the event, pinned for the week.
- Three Instagram Stories on the day, each tagging the gym account and using the location sticker.
- One Instagram Reel within 48 hours, showing the challenge format or a class in progress.
- A photo set delivered to the gym within five working days, with a signed usage note.
- One follow up post two weeks later, sharing a member result or a booking link.
Vague asks such as some content get ignored. Numbered lines are easy to price and easy to check.
Put fees, rights and usage in writing
State the fee, the payment date and who pays travel. Add the invoice details and the VAT position.
Cover content rights next. Ask for a licence to reuse clips on the gym's own channels and in paid social. Set the licence length, the territories and whether editing is allowed.
The GOV.UK intellectual property pages explain rights, licensing and content usage, which helps when you want to reuse a creator's video.
| Brief section | What to write | Why it matters |
|---|---|---|
| Event | Date, venue, door times | Stops diary clashes |
| Deliverables | Format, count, deadline | Makes pricing clear |
| Fee | Amount, terms, expenses | Avoids late disputes |
| Rights | Licence length, paid social use | Lets you reuse clips |
| Disclosure | Exact label wording | Keeps posts compliant |
Example: a one page brief for a Saturday open day
Deliverable one: one Reel, 45 seconds, posted Thursday at 6pm, showing the challenge board and the class timetable. Fee as agreed, payable within 14 days. Label: paid partnership with [your gym name].
Keep every brief to one page. Creators read on phones, often between sessions. Long documents get skimmed and details get missed.
Disclosure and health claim limits
UK advertising rules require paid posts to be obvious. Use Ad or paid partnership at the start of the caption, not buried in tags. The ASA advice on recognising ads on social media sets out the wording that works.
Do not let a creator promise weight loss, cure an injury or claim a class treats a condition. Keep claims to what the gym can evidence, such as timetable, equipment and coaching.
Track visits without breaking data rules
Give each creator a named booking link or a short code at reception. Ask for attendance counts, not personal medical details.
If you collect emails or run retargeting, you need a lawful basis and clear consent. The ICO guide to the GDPR explains lawful basis, consent and data processing.
For longer partnerships with supplement or health brands, the guide to wellness creators for UK health brands explains how to shortlist creators and check their claims.
What to measure afterwards
Three numbers matter: bookings traced to each creator, cost per attendance, and reusable assets delivered.
Pull the numbers one week after the event. Compare creators on cost per attendance, not follower count. Keep the assets in a shared folder with the licence end date in the file name.
Common questions
How long should a brief be?
One page for a single event, two pages at most. Use numbered deliverables and a short table for fees, rights and disclosure.
Do I need a written contract for one day?
Yes. A signed brief with fee, rights and cancellation terms protects both sides, even for a single appearance.
Can I reuse a creator's video in paid ads?
Only if the brief grants a paid social licence. Agree the length and the platforms before filming starts.
What if the creator posts nothing on the day?
Set a fallback line in the brief, such as a Story within 24 hours. Confirm drafts by message the day before.



