SkillMedev Gym Transformation Challenge
Structure a time-bound (usually 6-week) front-end challenge that fills the gym at low friction, breaks even on its own ad spend, and is engineered to ascend challengers into recurring membership.
Workflow
Step 1: Structure the challenge
Decide and write down each element:
- Duration: 6 weeks by default - long enough for a visible result, short enough to feel doable.
- Promise: one specific, believable result. "Drop a dress size in 6 weeks" beats "get fit."
- Inclusions: sessions per week, a done-for-you nutrition plan, weekly accountability check-ins, a start and finish body-composition scan, a private group. Each inclusion removes one obstacle the buyer would otherwise face.
- Price: common range 199 to 599. The price must cover ad spend and fulfillment, leaving the back-end membership as the profit. (If you also run gym-money-model, set the price there so the challenge clears the cash rule; otherwise size it directly with Step 4.)
Step 2: Design the ascension to membership
The challenge is not the business; the membership is. Decide before launch how a challenger becomes a member.
- The conversion offer: a member price and terms presented at the end of the challenge. Make staying easier than stopping - a member rate available only to challengers and only this week.
- The timing: present it in week 5, after the mid-challenge win and before the final week, when motivation peaks. Book a results review for every challenger and run the conversion conversation there.
- The bridge: continuity of coach, group, and plan. Frame membership as keeping the result they just earned, not buying a new thing.
Fill the conversion-offer-sheet template for the exact offer presented to challengers.
Step 3: Run the challenge week by week
- Pre-launch (week 0): fill the cohort, collect payment, send the welcome, book the first scan, add each challenger to the private group.
- Week 1: onboarding, baseline scan, a first session designed to feel like a win, nutrition plan handed over, group introductions.
- Weeks 2-4: deliver sessions, run weekly check-ins, keep attendance high, post early results publicly in the group, seed the idea of continuing past the challenge.
- Week 5: per-challenger results review, present the membership conversion offer, book consults for the undecided. This is the conversion week.
- Week 6: final scan, transformation celebration, close remaining conversions, collect before-and-after proof and testimonials for the next cohort.
See references/challenge-blueprint for the full deliverables per week.
Step 4: Confirm the economics
Run challenge_pnl.js with the cohort's numbers. It returns front-end profit or loss after ad spend and fulfillment, and projected back-end revenue from conversions. See references/challenge-economics.
Step 5: Produce the artifacts
Fill challenge-offer-sheet (the public offer), conversion-offer-sheet (the end-of-challenge membership offer), and challenge-runbook (the internal week-by-week checklist with owners and timing).
Quality bar
A challenge is ready to launch only when:
- The promise is one specific, measurable result with a deadline - not a vibe.
- The front-end nets at or above breakeven in challenge_pnl.js before a single membership converts. Growth must not depend on borrowing against future dues.
- A dated, challenger-only member rate exists in writing before the cohort starts.
- Every challenger has a booked week-5 results review, not an open invitation.
- The runbook names an owner and a date for every step.
Do NOT
- Do NOT price the challenge to maximize front-end profit. It exists to acquire members at breakeven; the membership is the profit.
- Do NOT design the conversion offer after the challenge starts. If the member rate and deadline aren't set before launch, conversion improvises and collapses.
- Do NOT leave conversion to a group announcement. It happens in a one-to-one results review.
- Do NOT extend the challenge to "give people more time." The deadline is the conversion mechanism.
- Do NOT write the ad copy, audiences, or lead forms here - that is gym-meta-ads-funnel's job; this skill stops at the offer and run-of-show.
Calculator
Self-contained Node script. Save as challenge_pnl.js and run with node challenge_pnl.js. No dependencies.
// Challenge P&L and back-end projection. Edit inputs, then: node challenge_pnl.js
const inputs = {
fillCount: 20, // paid challengers enrolled
challengePrice: 499, // price per challenger
costPerLead: 25, // ad cost per lead
showRate: 0.4, // share of leads that become paid challengers
fulfillmentPerChallenger: 120, // cost to deliver the challenge per person
conversionToMembership: 0.5, // share of challengers who become members
membershipLtv: 1558, // contribution LTV per member
}
function pnl(i) {
const leadsNeeded = i.fillCount / i.showRate
const adSpend = leadsNeeded * i.costPerLead
const frontEndRevenue = i.fillCount * i.challengePrice
const fulfillmentCost = i.fillCount * i.fulfillmentPerChallenger
const frontEndProfit = frontEndRevenue - adSpend - fulfillmentCost
const cacPerChallenger = adSpend / i.fillCount
const newMembers = i.fillCount * i.conversionToMembership
const cacPerMember = adSpend / newMembers
const backEndRevenue = newMembers * i.membershipLtv
const totalValue = frontEndProfit + backEndRevenue
return {
leadsNeeded, adSpend, frontEndRevenue, fulfillmentCost, frontEndProfit,
cacPerChallenger, newMembers, cacPerMember, backEndRevenue, totalValue,
}
}
const r = pnl(inputs)
const m = (n) => '$' + n.toFixed(0)
console.log('FRONT END')
console.log(' Leads needed: ', Math.ceil(r.leadsNeeded))
console.log(' Ad spend: ', m(r.adSpend))
console.log(' Challenge revenue: ', m(r.frontEndRevenue))
console.log(' Fulfillment cost: ', m(r.fulfillmentCost))
console.log(' Front-end profit: ', m(r.frontEndProfit),
r.frontEndProfit >= 0 ? '(self-funding)' : '(loss, back-end must cover)')
console.log(' CAC per challenger: ', m(r.cacPerChallenger))
console.log('BACK END')
console.log(' New members: ', r.newMembers)
console.log(' CAC per member: ', m(r.cacPerMember))
console.log(' Projected LTV value: ', m(r.backEndRevenue))
console.log('TOTAL projected value: ', m(r.totalValue))
Worked example output
FRONT END
Leads needed: 50
Ad spend: $1250
Challenge revenue: $9980
Fulfillment cost: $2400
Front-end profit: $6330 (self-funding)
CAC per challenger: $63
BACK END
New members: 10
CAC per member: $125
Projected LTV value: $15580
TOTAL projected value: $21910
Read it: $1,250 of ads fills 20 challengers who pay $9,980. After ads and fulfillment the challenge nets $6,330 before a single membership sells, so it self-funds. Half convert, adding $15,580 in projected lifetime contribution. Drop the fill or conversion rate and watch where the model breaks.
Template: challenge-offer-sheet
CHALLENGE OFFER. [FILL: challenge name]
Promise: [FILL: one specific result in 6 weeks]
Price: $[FILL] (payment plan: [FILL])
Includes: [FILL: sessions/week, nutrition plan, check-ins, scans, group]
Guarantee: [FILL: the risk-reversal you offer]
Scarcity: [FILL: spots per cohort]
Urgency: [FILL: start date, doors close date]
Who it's for: [FILL: avatar]
Template: conversion-offer-sheet
CHALLENGER-TO-MEMBER OFFER (presented week 5)
Member rate: $[FILL]/mo (challenger-only, this week only)
What continues: [FILL: same coach, group, plan, sessions/week]
Onboarding bonus: [FILL: e.g. free body-comp re-test, branded gear]
Terms: [FILL: commitment length, start date]
Why now line: "[FILL: keep the result you just earned]"
Deadline: [FILL: offer expires end of week 6]
Template: challenge-runbook
CHALLENGE RUNBOOK. [FILL: cohort name / dates]
PRE-LAUNCH (owner: [FILL])
[ ] Cohort filled to [FILL] spots, payment collected
[ ] Welcome message + first scan booked
WEEK 1 (owner: [FILL])
[ ] Baseline scan, onboarding, first-win session, group intros
WEEKS 2-4 (owner: [FILL])
[ ] Sessions delivered, weekly check-ins, attendance tracked
[ ] Early results posted in the group
WEEK 5 (owner: [FILL])
[ ] Mid-result review, conversion offer presented, consults booked
WEEK 6 (owner: [FILL])
[ ] Final scan, celebration, remaining conversions closed
[ ] Before/after proof and testimonials collected
references/challenge-blueprint
Full 6-week run-of-show and deliverables:
- Pre-launch (week 0): confirm payment, send a welcome that sets expectations, collect a starting photo and measurements, book the week-one scan, add each challenger to the private group.
- Week 1: baseline body scan, movement assessment, a first session designed to feel like a win, nutrition plan handed over, group introductions. Goal: an early result and the habit started.
- Week 2: first weekly check-in, address early friction (soreness, schedule), publicly celebrate the first small wins in the group.
- Week 3: progress check, adjust nutrition, keep attendance high. Reinforce that results are tracking.
- Week 4: mid-point scan or measurement, share visible progress, begin seeding the idea of continuing past the challenge.
- Week 5: results review per challenger, present the conversion offer, book a short consult for anyone undecided. This is the conversion week.
- Week 6: final scan, transformation celebration, close remaining conversions, collect before-and-after photos and testimonials for the next cohort's ads.
The conversion mechanic: every challenger gets a one-to-one results review where the coach shows the progress, names the result still available with continued training, and presents the challenger-only member rate with a deadline.
references/challenge-economics
A challenge is self-funding when up-front challenge revenue covers ad spend and fulfillment, leaving the back-end membership as profit. The four levers are fill count, challenge price, cost per lead (which sets ad spend through the show rate), and conversion to membership. Tune them in challenge_pnl.js.
If the front-end runs at a loss (low price or high cost per lead), the back-end can still justify it - but only when conversion and LTV are strong and the gym has the cash to wait for dues. The safer design keeps the front-end at or above breakeven so growth never depends on borrowing against future revenue.