Fitness systems for anyone, at any level.
One founder. 170 kilos. An Ironman on the horizon. We build in public. We train in public.

Chunky Systems is a fitness membership platform for beginners starting from zero. The entry programme, Prologue, is a 365-day bodyweight training system built around five pillars: Mobility, Coordination, Strength, Cardiovascular, and Recovery. Members train daily, track habits and progress in a 365-day activity grid, and are tested every four to five weeks against clear pass-or-fail standards. Graduation requires 100% across all five pillars and takes a minimum of nine months. Members who graduate gain access to the wider Chunky Systems platform.
Five pillars. All of them. Always.
Every pillar is trained. Every pillar is tested. You graduate when you pass all five — not before. There are no shortcuts and no partial credit.
Mobility
Healthy joints, full range of motion, and flexibility. The base everything else is built on. Tested through movement quality standards.
Tested every 4–5 weeksCoordination
Body control, balance, and spatial awareness. The skill most beginners have never been taught — and the one that compounds fastest.
Tested every 4–5 weeksStrength
Bodyweight strength built from scratch. No weights. No gym. No excuses. Tested through progressive calisthenics standards.
Tested every 4–5 weeksCardiovascular
Aerobic capacity and endurance. Built without gear. Tested without machines. Your body is the equipment.
Tested every 4–5 weeksRecovery
Sleep, nutrition habits, and active rest. Treated as training, not an optional extra. You are tested on whether you recover — not just whether you work.
Tested every 4–5 weeksGraduate = 100% pass across all five pillars · Minimum 9 months · 365 days minimum
I'm Will.
I weigh 170kg and I'm training for an Ironman.
I wasn't always broken. I was strong — genuinely strong. Gym strong. The kind of strong where you move heavy things and feel untouchable.
Then I started training for an Ironman and my body told me the truth. My mobility was gone. My joints had nothing. I was powerful in a cage and useless outside of it.
So I stripped everything back. No shortcuts, no ego. I gave myself one job — build a real foundation. Tendons. Ligaments. Mobility from head to toe. Get everything in sync before I ask it to carry me through Ironman volume.
That's the Prologue. 365 days. Not arbitrary — that's what I needed. It's the work nobody wants to do because it doesn't look impressive. But it's the only reason the rest is possible.
Chunky Systems exists because I needed it and it didn't exist. Every product I ship, I test on myself first. The bar is hard because soft bars don't hold.

Your journey won't look like mine. It doesn't have to.
Maybe it's an Ironman. Maybe it's a marathon, a strongman comp, or just moving through life without breaking down. The destination changes — the need for a real foundation doesn't.
That's why Prologue isn't just a starting point. It's the gateway to every journey we programme after it. Intermediate phases built around where you're going, not where someone else has been.
We have the journeys. You just have to start.
We build in public. The grid doesn't lie.
Know before you begin.
We would rather you not join than join the wrong programme. Read both columns.
Simple. No tiers.
One price. Everything included. Cancel anytime — though the programme rewards those who commit for the full nine months minimum.
No lock-in. No contracts. Cancel from your account in two taps. Access continues until the end of your billing period.
- →Full 365-day bodyweight programme — all five pillars
- →Fitness tests every 4–5 weeks with pass/fail standards
- →Daily journal, habit tracker, and body stats
- →365-day activity grid and streak system
- →Coin rewards and milestone badges (Day 30 · Day 90 · Graduate)
- →Graduation pass — your route into the wider Chunky Systems platform
Cancel any time · No contracts · Data retained 90 days after cancellation
Prologue is the beginning. Chunky Systems is what you are working toward. Graduating from Prologue earns you access. We do not show what it looks like — you earn the right to find out.
The Journeys.
Every product we ship, we train in ourselves.
Common questions.
What is Chunky Systems?
Chunky Systems is a fitness membership platform built around structured training journeys. Prologue is the entry programme — a 365-day bodyweight system built on five pillars. Members who graduate from Prologue gain access to the wider Chunky Systems platform. The founder documents his own training publicly.
What are the five pillars?
Mobility, Coordination, Strength, Cardiovascular, and Recovery. All five are trained throughout the programme and tested every four to five weeks. Graduation requires a 100% pass rate across all five pillars — not four out of five, not a cumulative average.
Can I cancel anytime?
Yes. Cancel from your account settings in two taps. No dark patterns. Access continues until the end of your billing period. Your data and progress are retained for 90 days — if you return within that window, you pick up where you left off.
Do I need any equipment?
No. Prologue is 100% bodyweight. You need floor space. The programme is built around what your body can do, not what you can buy. No gym membership, no wearable required.
How long does it take to graduate?
The minimum is nine months — 270 days of active training. Most members graduate between months nine and fourteen. Some take longer. Graduation happens when you pass all five pillars with 100% of the required results. It cannot be rushed.
What if I miss a day?
The grid records it honestly. A missed day is a missed day — the programme does not penalise you beyond that. What matters is the pattern over time. A chain of 87 days with one gap is still 87 days of work.
I have an injury. Can I still do this?
Onboarding asks about injuries and the programme adjusts where possible. Prologue is not medical advice — if you are post-surgery or managing a serious injury, consult your doctor first. The programme is built to help you grow, not to harm you.
What happens to my progress if I pause or cancel?
Your data is yours. If you cancel and return within 90 days, everything is where you left it — day count, journal entries, metrics, badge progress. After 90 days, accounts are archived but data is retained. Contact us and we will restore it.
Small tools. Real use.
Standalone trackers, workout programs, lifestyle guides. Built for daily use. From $2.
Read the build.
Training logs and product updates. No sign-up needed.