The Silver Fox Challenge Is
This Month's Challenge.
Members Get Every Month.
A 30-day cohort built on the Sigma Formula. Your band-specific prescription. Four live coaching Zooms. A leaderboard that doesn't lie. And a cohort of men over 40 in the same fight — who all have your back.
A new named challenge starts the first Monday of every month, Janus through The Legacy. Take this month solo — or join The Standard and never miss one.
Find out why your body stopped responding — 10 minutes, free.
Three Ways In.
One Direction.
All twelve named challenges, Janus through The Legacy — this month included. Two months free versus monthly, and the founding rate is locked for life. One decision, twelve months of forward motion.
Lock My Founding Year — $290Renews annually at $290. Cancel anytime in two clicks. Reminder email before every charge.
The monthly challenge membership. A new named challenge starts the first Monday of every month. This month's Challenge included free. Your first one starts the day you join.
Lock My Founding Rate — $29/moRenews monthly at $29. Cancel anytime in two clicks. Reminder email before every charge.
One challenge, no membership. The full 30 days: prescription, Zooms, leaderboard, cohort. 30-day access.
Enroll in The Challenge — $97Take this month solo and decide later — your $97 counts toward The Year.
You Don't Need
More Motivation.
You Need 30 Days
Of Evidence.
Most men over 40 don't have a willpower problem. They have a proof problem.
Every program you've started over the past ten years gave you the same thing — effort, hope, and silence. You worked. You hoped. And by week three, with no number to show you it was working, doubt did what it always does: it whispered maybe this is just how it is now and you quit. Not because you couldn't do it. Because nothing was telling you that you were doing it.
The Silver Fox Challenge fixes that on Day One. You get a number. You get a date. And every Sunday for thirty days, both of them move — or both of them don't. There is nowhere to hide and there is nothing to argue with.
Thirty Days. Three Things
That Don't Go Away.
The fitness results you'll see in 30 days are real. The score will move. The waist will narrow. The mirror will be different. But the men who graduate The Challenge will tell you that the body change is the smallest of the three things they took away from it.
has actually moved
now runs on autopilot
argue yourself out of
That last one is the one that lasts. A man who has watched his own score move and his own date shift does not go back to being the man who doubted he could do it. The Challenge is short by design. What it builds is permanent.
The Wall of Champions
Is Waiting.
Every cohort ends with a champion — selected on score movement, adherence, and how he showed up for the other men. The first cohort's names go up here. One of them could be yours.
The Champion's Cup.
The Prize Pool Grows With Every Cohort.
Selected by the Silver Fox coaching teamEvery man who enrolls raises the stakes for the whole cohort. Champions take home the Silver Fox Cup, coaching credit, lifetime membership rates, and the medallion — and as cohorts grow, so does the cash on the table.
- Score movement — not the highest final score, the largest delta from your Day-1 baseline. A man who goes from 38 to 56 outscores a man who goes from 80 to 82.
- Adherence — perfect or near-perfect Sunday Check-In consistency across all four weeks. The leaderboard tracks this in real time.
- Cohort contribution — how you showed up for the other men. Comments on their check-ins. Encouragement in the group. Did you make the cohort better?
- Transformation submission — your Day 1 and Day 30 photos (front, side, back), your starting and ending measurements, and a written summary of what changed.
The Same Formula.
Calibrated To You.
The Sigma Formula doesn't believe in one-size-fits-all. Your Sigma Score on Day 1 places you in your band. Your band determines your full prescription for the next 30 days — workouts, nutrition, sleep, stress, supplementation. As your score rises during The Challenge, your protocol advances with you.
- Strength2× / week, Workout A modified
- Walking7,500 steps / day
- Mobility1× / week Fountain of Youth
- NutritionBodyweight × 10 cal · 1.2g protein
- Sleep target7+ hours, lights out by 10:30
- Stress1× daily 4-7-8 breathing
- SupplementsMagnesium · Zinc · Vitamin D
- Strength3× / week, Workouts A · B · C full
- Walking10,000 steps / day
- Cardio1× / week, 20-min intervals
- NutritionBodyweight × 10 cal · 1.2g protein
- Sleep target7–8 hours, screens off by 10pm
- Stress2× daily breathing + 10-min walk
- SupplementsFoundation + creatine + omega-3
- Strength3× / week, advanced supersets
- Walking10,000 steps / day, every day
- Cardio2× / week intervals + active recovery
- NutritionBodyweight × 16 cal · 1.0g protein
- RecoveryCold exposure 1–2× / week
- Sleep target8+ hours, full sleep hygiene stack
- SupplementsFull stack + ashwagandha + BCAA
- Strength3–4× / week, programmed periodization
- Walking12,000+ steps / day
- Cardio3× / week zone 2 + intervals
- NutritionCarb cycling around training
- RecoveryCold + heat contrast 2× / week
- Sleep target8+ hours tracked, 90%+ efficiency
- SupplementsFull hormonal-support stack
Don't have your Sigma Score yet? Your enrollment includes a guided assessment on Day 0 that puts you in your band before the cohort begins. The score takes 10–12 minutes and includes physical benchmarks (push-ups, plank, squats, resting heart rate) — not just a survey.
Three Workouts a Week.
Five Daily Habits.
One Sunday Check-In.
The Challenge isn't a 90-minute-a-day program. The original Silver Fox Challenge book proved a long time ago that consistency beats intensity for men over 40. The cohort version refines that into the most efficient transformation block we've ever run.
Workouts A, B, C — joint-friendly compound movements built around the Silver Fox Method. Heavy enough to grow. Smart enough not to injure. Performed once each per week.
7,500 steps on training days. 10,000 on off days. Proven to move stress hormones in the right direction without burning your recovery capacity.
Calorie target and protein floor calculated from your bodyweight and goal. Logged daily. The Black Book's nutrition pages are built exactly for this if you want paper. The app works too.
Every Sunday in the app. Six questions, two minutes — sleep, training, protein, stress, alcohol, adherence. Your Sigma Score recalculates. Your Target Lock date moves. The leaderboard updates. The coaching team can see exactly where you are.
Show up in the private Challenge group every day. Brief is fine. Honest is required. The men who post every day are the men who finish — that pattern has held across every cohort we've ever run.
One per week. Onboarding (Week 1). Pillar Q&A (Week 2). Accountability call (Week 3). Champion announcement and cohort graduation (Week 4).
What Actually Happens
Inside The Challenge.
Day 0: take your Sigma Score, get your band, take your front-side-back photos, get your full prescription. Day 1: workout A. By Sunday you've logged your first check-in, posted your starting score on the leaderboard, and locked your Day-30 Target. Live zoom: onboarding with the coaching team. The number is now on the board.
Most men discover their weakest pillar in week two. The Sunday check-in surfaces it. Your prescription targets it directly. The leaderboard begins separating the men running the Sigma Formula from the men thinking about running it. Live zoom: pillar Q&A.
This is the week the Challenge changes a man. Scores move on the leaderboard. Target Lock dates shift closer. Strength numbers in the Black Book climb. The mirror starts confirming what the spreadsheet already said. Live zoom: accountability call. This is the most important call of the four.
Last Sunday: final check-in, final scores, final photos taken. The coaching team reviews score deltas, adherence, contribution, and submissions. The Champion is announced live on the Week 4 zoom. Day 30 closes — and the rest of your year begins: every graduate can continue with The Standard.
What You Get For $97.
Guided 10–12 minute assessment that includes physical benchmarks. Outputs your Sigma Score, your band, and your Day-30 Target Lock date — locked in before the cohort starts.
Workouts, walking targets, nutrition formulas, sleep standards, stress protocols, and supplementation — calibrated to your band. Updates as your score rises.
One live call per week with the Silver Fox coaching team. They've read your check-ins and know your numbers before each call begins.
Score and adherence tracked publicly within your cohort. Updated every Sunday. Adherence is weighted alongside score movement — the man who shows up every Sunday outranks the man who started highest.
Your Challenge includes access to The Standard — the members-only community — for the duration of the cohort. One hundred men running the same formula at the same time. Daily check-ins. Coaching responses. The accountability that makes the difference between a program you bought and a program you finished.
Six questions. Two minutes. Inside the app. Score recalculates. Target Lock moves. MOTT (Most Of The Time) holds your adherence floor at 75% so consistency wins, not perfection.
Champions take home the Silver Fox Cup, coaching credit, lifetime membership rates, and the medallion — and the prize pool grows with every cohort. Selected by the coaching team based on score delta, adherence, contribution, and submission.
Every graduate can continue — your Challenge was month one. Join The Standard after (or better: join now and this month's included free).
The body change is the smallest thing you'll take away from 30 days. The biggest thing is what The Challenge installs in you when it's over.
A man who watched his own Sigma Score climb from 44 to 61. A man who saw his Target Lock move 11 days closer because of how he showed up. A man who has photographic evidence — taken in the same light, in the same clothes, 30 days apart — that the version of himself he'd given up on still exists.
That man does not return to doubting himself. That is what stays. The fitness is the by-product.
Was Month One.
Every graduate can continue. The Standard is the year-round membership where a new named challenge starts every month — Janus, No Tomorrow, Iron Sharpens Iron, Leonidas, The Legacy, and the rest. Finish your 30 days, keep your momentum, keep your cohort.
Founding rate: $29/mo locked for life — first 100 members.
Renews monthly at $29. Cancel anytime in two clicks. Reminder email before every charge.
"You don't need more motivation. You need thirty days of evidence that you are capable of change. The Challenge is where that evidence starts."— Christian Henning, Silver Fox Society
What Most Men Want To Know Before They Enroll.
I'm in terrible shape. Will I be able to do this?
Yes. The Ignition band exists for exactly this — two strength days, walking, mobility, sleep, and the three minerals every depleted man needs on Day 1. The Sigma Formula meets you where you are. It does not punish you for starting low.
I've already tried programs and quit by week three. Why is this different?
Because there's a number on the board. Every program you've quit gave you no way to see if it was working. The Sigma Score and the Target Lock date settle that argument every Sunday. Add a leaderboard and a coaching team that can see your numbers — and the men who quit programs alone tend not to quit this.
Do I need a gym?
No. Workouts A, B, and C were designed in the original Silver Fox Challenge book to scale from bodyweight to a fully equipped gym. A pair of adjustable dumbbells, a kettlebell, and a pull-up bar are more than enough.
How much time per day does it actually take?
Roughly 30 minutes on training days and 20–30 minutes on walking days. The Sunday Check-In takes two. The cohort posts take five. Total time per week: under three hours.
Do I have to take before/after photos?
If you want to be eligible for the Champion's Cup — yes. Front, side, and back, in shorts, in the same light on Day 1 and Day 30. Submitted privately to the coaching team. They are reviewed only for selection. They are never published unless you give explicit permission.
What's the refund policy?
Thirty-day money-back guarantee. If you log your check-ins, post in the cohort, and follow your prescription for 30 days and you're not satisfied, the coaching team will refund your enrollment in full.
When does the next cohort start?
The first Monday of every month, capped at 100 men. Once a cohort fills, the next available start date is the first Monday of the following month. Members of The Standard have a seat in every cohort automatically.
Thirty Days From Now,
The Mirror Will Not Argue.
Your band is set. Your prescription is waiting. The leaderboard is empty. The coaching team is ready. The next cohort is filling. The only question is which Monday becomes Day 1 for you.
Renews annually at $290. Cancel anytime in two clicks. Reminder email before every charge.
Lock My Founding Rate — $29/moRenews monthly at $29. Cancel anytime in two clicks. Reminder email before every charge.
Enroll in This Month Only — $97— or start smaller —
Burn The Boats — $147 (The Sigma Formula + The Black Book + This Month's Challenge)30-Day Money-Back Guarantee · Secure Checkout · Ships to US & Canada