coach kate brien

Hi, I’m kate

I help high-performing women go from running on fumes to hitting big PRs on race day, using a data-driven framework that aligns with their physiology and their real life.

I’m a performance nutrition coach, Air Force veteran, women’s hormone health specialist, and the creator of the P3 Method: a performance-driven system built for ambitious women who are tired of doing everything “right” and still feeling stuck.

My clients track their macros, their mileage, and their ovulation…

But despite all that data, they still feel off. Fatigued, disconnected, or like their body isn’t keeping up with their goals.

Sound familiar?

I get it. Because I’ve lived it.

I know the pressure of trying to do it all while your body whispers, “not like this.”

That’s why my approach blends science, structure, and strategy to help you finally train smarter, fuel better, and perform like hell, without sacrificing your health.

With a Master’s in Psychology and over a decade of coaching experience, I specialize in helping women:

Reconnect with their body and cycles
Rebuild trust with their training
And get real, sustainable results without burning out

Whether you’re training for a marathon, trying to conceive, or just trying to stop white-knuckling your workouts, this is the space where your goals and your health finally work together.

No fluff. No fads. Just data-backed, mindset-rooted coaching that meets you where you are and pushes you toward what you’re actually capable of.

Certifications:

Master of Arts in Psychology (Specialization: Military & Trauma Psychology)
NCI (Nutrition Coaching Institute)
Levels 1 & 2
Certified Pre- & Postnatal Coach (Girls Gone Strong)
NCI-Certified Hormone Specialist
Precision Nutrition Level 1
UESCA-Certified Running Coach
NASM-Certified Personal Trainer
Integrative Health Practitioner

HOW TO WORK WITH ME

1:1 Concierge + LITE Nutrition Coaching
1:1 Running Programming (The P3 Method)
Performance Nutrition Cohorts
Strategy Sessions
The Practical Athlete

apply to work with kate

KATE’S PR PERFORMANCE PROTOCOL

THE P3 METHOD

The PR Performance Protocol

Train smarter. Fuel better. PR without burnout.

Introducing The PR Performance Protocol (The P3 Method): a high-performance coaching experience designed for driven women who are done with chaotic training cycles, second-guessing their plan, or ghosting their goals halfway through.

You don’t need more discipline. You need a system that finally matches your ambition.

P3 helps you become the woman who:

Executes with clarity, not confusion
Fuels with intention, not anxiety
Follows through, no matter what life throws her way

She starts as the overachieving hustler, burned out from trying to do it all.

She finishes as a precision athlete. Strategic, consistent, and in control.

Inside P3, you’ll train with purpose, fuel with confidence, and finally PR without falling apart halfway there.

This is the plan you wish you had last time.

apply for P3 with Kate

WHY P3 WORKS:

Your results don’t come from working harder. They come from working smarter with a system that actually fits your body, goals, and life.

The P3 Method is the high-performance engine behind the protocol.

1. Precision Programming
Your running + strength plan is customized weekly to match your recovery, stress, schedule, and performance goals. No more following a plan that only works on paper.

2. Performance Fueling
Fueling strategies and macro timing aligned with your training blocks so your nutrition actually supports your recovery, energy, and results.

3. Real-Time Adaptation
By having daily access to Kate via text, weekly video feedback, and strategic recalibration, your plan evolves with you. This isn’t static. It’s dynamic. And it’s why it works.

This is the missing piece. The one no other plan gave you. This is why P3 actually delivers.

THE P3 DIFFERENCE:

Most programs give you a plan. I give you a protocol.

Personalized to your recovery, goals, and energy
Adapted weekly based on real data and real life
Supported daily by a real coach who’s in it with you
Fueled by strategy, not guesswork

This isn’t group coaching. This isn’t DIY. This is P3.

The PR Performance Protocol (P3) is a 12-month 1:1 coaching experience designed to help you train, fuel, and recover with precision.
You get a fully personalized system that evolves with your body, your goals, and your schedule, so you can stop second-guessing and actually start performing.
No fluff. No one-size-fits-all. No burnout. Just the plan you wish you had last time.
Here's exactly what’s included inside P3:
- ✅ 6 or 12 Months of 1:1 Coaching
- ✅ Weekly-Updated Running + Strength Plan
- ✅ Custom Fueling Protocols + Cronometer Pro Access
- ✅ Monthly Private Coaching Calls (6 or 12 total)
- ✅ Weekly Loom Video Feedback
- ✅ Daily Coach Access via Voxer or WhatsApp
- ✅ Annual Periodization Strategy + Seasonal Planning
- ✅ On-Demand Performance Nutrition + Adaptation Modules
If you’re a high-achieving, Type A woman who’s:
- Tired of training hard with nothing to show for it
- Burning out halfway through every race cycle
- Sick of plans that don’t adapt to your real life
- Craving structure, support, and performance without the crash...
P3 was built for you.
This is for the woman who wants to PR her next race and still have energy, confidence, and control at the finish line.
When you say yes to P3, you:
- Always know exactly what to do each week
- Train with a plan that matches your life, not fights it
- Fuel with clarity, not confusion
- Stop ghosting your goals when things get messy
- Start performing like the athlete you know you are
And most importantly:
You PR!
Without burning out, plateauing, or wondering if you’re doing it right.