Become the coach
your athletes
already believe you are.
A coach who is great on the floor is rarely taught how to run the business around the work. This is where that gets fixed. Essays and field notes on pricing, retention, community, and the craft itself. Free, and built for the long game.
Five essays on building a fitness network from the ground up.
Edwin Grant is a strength coach in Miami building Marrow in the open. These are his long-form pieces on why he dissolved his own brand, what coaching while building software taught him, and where this is all headed. Publishing through late May.
Growing your coaching business
The work of building something that holds. Stacks, structure, and the math behind a practice that lasts.
The Single Tool Stack That Replaces Seven You Are Already Paying For
What a typical online coach uses to run their practice. Seven tools, five subscriptions, one tangled stack. Here is what it looks like consolidated, and what the coach gets back when the stack stops eating the workday.
What Elite Coaching Means When the Coach Has 50 Athletes
The online coaching industry has a scale problem. Here is why high coach-to-athlete ratios pull quality down, and how to hold the standard as the roster grows.
Pricing your work
What to charge, why, and how the platform you build on quietly shapes every number you set.
Why Every Coaching Platform Charges More Than It Should
An honest accounting of what coaches pay across the typical software stack. Programming, payments, nutrition, comms, scheduling. Here is the math, and the case for outcome-aligned pricing.
Why Marrow Charges 5 Percent Instead of a Flat Platform Fee
Every other coaching platform charges a flat fee regardless of what the coach earns. Marrow takes a share of the work. Here is why that structural difference shows up in the product.
What 12 Months of Locked Pricing Actually Means for a Coach
Software prices climb every year. A 12-month locked rate is more than a discount. It is a forecastable line item in a business that runs on margin.
Retaining athletes
The work that keeps people. Signal, attention, and the difference between checking in and actually coaching.
The Check-In Is the Lie: Why Async Coaching Fails Serious Athletes
Async coaching runs on lagging signals and weekly check-ins. Here is why serious athletes need real-time data and live adjustments, and how that changes who stays.
Why a Generic Fitness App Stops Working at Month Four
Generic apps fail because they run a static curve. Here is why the 90-day plateau hits, and how recovery-aware coaching breaks it before the athlete drifts.
The Recovery-Aware Programming Protocol: A Coach Framework
Recovery-aware programming is the architecture of steady adaptation. How autoregulated training prevents overtraining and keeps athletes progressing.
Building community
A practice is stronger when the people inside it know each other. Trust, the room, and the cost of losing it.
The Hidden Cost of Coach-Driven Churn at Multi-Coach Gyms
Coach turnover at multi-coach gyms is not a personnel problem. It is a data ownership problem with a personnel symptom. Here is the real cost and the structural fix.
Three Questions That Filter Every Influencer Out of a Coach Search
Athletes pick coaches off a feed and get burned. The aesthetic is the wrong filter. Here are three questions that distinguish a real coach from a marketer.
The craft of coaching
The science under the work. Reading the body, reading the week, and programming for a real human life.
The Marrow Method: Precision in Coaching
The deepest layer of strength is the one that holds everything else up. Here is the coaching system that replaces generic templates with recovery-aware precision.
What HRV Actually Tells Your Coach, and What It Does Not
Heart rate variability tracks stress and recovery. It is not a crystal ball. Here is what HRV really means for the training a coach writes.
How to Program a Hybrid Athlete Who Keeps Breaking the Program
Hybrid athletes do not show up 3 of 3 days. They show up 2 of 3. Here is the priority-tier architecture that lets the program bend without breaking.
Cortisol, Training Stress, and Life Stress: Stop Separating Them
A nervous system does not separate a heavy deadlift from a missed deadline. Here is how total stress load sets an athlete training capacity.
Sleep Debt and the Lift You Should Have Skipped
Training on bad sleep is not toughness. It is a physical mistake. Here is how sleep debt blunts adaptation and raises injury risk.
Best Wearable for Recovery: Choose by Sensor, Not Brand
Most wearable comparisons argue about apps. The real difference is sensor placement and accuracy. Here is what to look for if you train hard.
First-Responder Fitness: Training Around Shift Work
Shift work breaks circadian rhythms and blunts recovery. Here is how to use autoregulated training to build strength without piling up fatigue.
Then build with us.