Health · Longevity · PerformanceHealth · Longevity · Performance

Relentless Theory.Built to last.

Healthy body. Healthy mind. One system.

We all perform life every single day — and to perform at your best, you have to be mentally and physically in tune. That’s what we train and what we coach. Relentless Theory is a performance coaching brand: structured running, strength and hybrid programs, built by coaches who live it. No hacks, just a plan you can follow.

Programs built for your first 5K

Start Free Trial — $19/mo Meet the Coaches

Running → Strength → Hybrid → 1:1 Coaching →

Instant digital delivery · 7-day free trial on every Path · 100+ athletes coached

Meet the coachesPeter & Justyn

60 KMPeter’s 30th birthday run

100+

Athletes coached

5+

Years of pro football experience

11

Programs across 3 paths

$19

Per Path · per month

Licensed Fitness Coach, Nutritionist, Personal Trainer & Performance Coach

Competitive endurance athlete

#StayRelentless

Meet the Coaches

Real coaches. Real lives.

Peter SchaaleFounder & Performance Coach

Ex-professional footballer, hybrid athlete and ultrarunner. Coach to 100+ athletes.

Justyn MeilleurCoach & Co-Founder

American football background, 20+ years of strength training. Coaches people with busy schedules and physical jobs.

Read the full stories

How It Works

Three steps. Zero guesswork.

01

Pick one of the paths below

Running, Strength or Hybrid. Choose the path that fits your goal and your week.

02

Subscribe and start

Start a 7-day free trial on any Path, or go All Access. Instant digital delivery — no waiting on a coach, no sales call.

03

Train. Progress. Repeat.

Clear sessions, clear targets and week-by-week progression — you just show up, the way I do.

The Lineup

Pick a path. Follow it through.

Tap a path for the full program breakdown and pricing.

Live

Running Path

From your first 5K to a full marathon — one continuous build, no restarting from zero at each step.

4 programs · 10–18 weeks each · one subscription

Explore Running

Live

Strength Path

No tracks, no forced order — pick the split that matches your schedule, from 2 to 6 days a week.

4 splits · 2–6 days/wk · pick your lane

Explore Strength

Live

Hybrid Path

Hybrid strength-and-endurance race prep, in three escalating levels of competitive readiness.

3 levels · Challenge → Perform → Win

Explore Hybrid

All Access

$29 / month

Every program across all three Paths. No free trial.

Subscribe

1:1 Performance Coaching

The other 22 hours.

Nutrition, sleep, habits and mindset, built around your life.

Learn more

Corporate

A healthier team. Built in.

Corporate packages for companies and teams, from app access to full coaching.

Learn more

Real People. Real Results.

What They're Saying.

★★★★★

Back-to-back games used to wreck me. Now my legs feel fresh into the second half of the season, and my recovery days actually mean something.

Rory

19 · University Basketball

★★★★★

Peter built a plan around my season, not against it. My vertical and my court speed both improved without adding extra gym days I didn't have time for.

Rita

21 · University Basketball

★★★★★

I used to fade by the third period. Now my legs hold up for every shift, and my own coach has noticed the difference.

Zoe

15 · Academy Ice Hockey

★★★★★

Getting ready for trials felt impossible to plan on my own. RT Athletics gave me a real structure for training, eating, and recovering that actually fit around my week.

Jamie

22 · University Soccer

★★★★★

RT Athletics helped me improve my performance at a top university level. My conditioning, my recovery between games, all of it stepped up once I had a real structure behind it.

Amadou

20 · University Soccer

★★★★★

I came in without a specific sport in mind, just wanting to get faster and stronger for tryouts. RT Athletics gave me a level of structure I never had training on my own.

Leon

20 · University Athlete

★★★★★

I hadn't lifted consistently in years. Full Body got me back in the gym without overwhelming me — three months in and I'm stronger than I was at 25.

Felix

34 · Software Engineer · Strength Path

★★★★★

First 5K to First 10K took me from barely jogging to finishing my first real race. I never thought I'd call myself a runner.

Sabrina

41 · Mother of Two · Running Path

★★★★★

Built to Perform fits perfectly around my work week. I'm stronger, I sleep better, and I actually look forward to training now.

Julian

29 · Marketing Manager · Hybrid Path

★★★★★

Shift work made consistency impossible until I found a plan that worked with just 3 days a week. Down 12kg and stronger than I've ever been.

Aisha

37 · Nurse · Strength Path

Ready When You Are

Train with someone who does it every day. Start today.

Pick a program and start this week — or apply for 1:1 coaching and I’ll build around your goals, your calendar and your life.

Start Free Trial — $19/mo Apply for 1:1 Performance Coaching

Instant digital delivery · 7-day free trial on every Path · #StayRelentless

← All paths

PATH 01

Running Path

Couch to marathon — one continuous build

Four programs, each picking up where the last one's peak week left off. Nobody restarts their aerobic base twice — the plan just keeps building, all the way to a marathon finish line.

Start free trial

Runs + strength every week, from program one
Injury-prevention training built in, not bolted on
Self-guided — clear pace and effort targets, no coach required
All four programs included in one subscription

The Programs

Step 01

First 5K

10 weeks · 3 runs + 2 strength/wk

Run a continuous 5K

Step 02

First 10K

10 weeks · 4 runs + 2 strength/wk

Run a 10K

Step 03

First Half

14 weeks · 4 runs + 2 strength/wk

Run a half marathon

Step 04

First Marathon

18 weeks · 5 runs + 2 strength/wk

Run a full marathon

Pricing

Running Path

$19

per month · first 7 days free

Includes all 4 programs: First 5K, First 10K, First Half & First Marathon

Start free trial

Other paths

Strength Path Hybrid Path

← All paths

PATH 02

Strength Path

However many days you’ve got, there’s a split for it

No tracks, no forced order — pick the split that matches your schedule. Every program is self-guided, structured, and built to progress. Switch lanes anytime as your week changes.

Start free trial

Four splits, one path — pick by days per week, not experience level
Every program self-guided — exact sets, reps, and cues
Switch splits anytime as your schedule changes
Structured progression within every split, week to week

Pick Your Lane

2 Days / wk

Full Body

12 weeks · full-body x2

Minimum dose, maximum consistency

3 Days / wk

Full Body + Upper/Lower

12 weeks · FB, upper, lower

The balanced default — most people start here

4 Days / wk

Upper/Lower x2

12 weeks · upper, lower x2

Steady, structured progress

6 Days / wk

Push/Pull/Legs x2

12 weeks · PPL x2

Built for volume, built for grind

Pricing

Strength Path

$19

per month · first 7 days free

Includes all 4 splits — switch anytime

Start free trial

Other paths

Running Path Hybrid Path

← All paths

PATH 03

Hybrid Path

Three levels of race readiness — Challenge, Perform, Win

Hybrid strength-and-endurance racing prep, built as a competitive ladder rather than a single plan — you train to survive it first, then to perform, then to actually win your heat.

Start free trial

01

Built to Challenge

Beginner-friendly — lays the foundation for long-term progress by reshaping strength and cardiovascular health from the ground up. Builds consistency, control, and capacity so you're ready to progress into Level 2 and 3 as your fitness evolves.

2x full-body compound lift sessions/wk
3x cardio sessions across different heart rate zones
Daily mobility for movement and recovery
Education on training zones, movement quality, and form

02

Built to Perform

Intermediate — builds on Level 1 with more volume and intensity, pushing body and performance forward while staying smart and consistent. Sets the stage to advance into Level 3, where performance and intensity meet precision.

2x full-body compound lift sessions/wk
3x cardio sessions targeting multiple heart rate zones
1x weekly full-body EMOM for work capacity & coordination
Daily mobility to support recovery and joint health

03

Built to Win

Advanced — where performance meets precision. Adds intensity, explosiveness, and complexity for those who've built the base and are ready to push limits, dialing in performance, conditioning, and resilience at a high level.

2x heavy compound lift sessions to maintain and push strength
3x cardio sessions including high-intensity work
1x explosive sprint & plyometric session for speed and power
Optional HYROX-style sim workout (cardio + resistance)

Pricing

Hybrid Path

$19

per month · first 7 days free

Includes all 3 levels: Challenge, Perform & Win

Start free trial

One plan, three levels: your Hybrid subscription covers Challenge, Perform and Win — start where you are and move up as your fitness evolves.

Other paths

Running Path Strength Path

← Home

Peter Schaale carrying kettlebells in the gym

Peter SchaaleFounder & Performance Coach

Coach · Founder

Miles, systems, consistency.

I’m Peter Schaale — ex-professional footballer, hybrid athlete and founder of Relentless Theory. I won’t hand you a plan I wouldn’t run myself.

Who I am

A former professional footballer turned performance coach. Licensed Fitness Coach, Nutritionist, Personal Trainer & Performance Coach. I’ve coached 100+ athletes — youth, university and pro level, in person and online.

What I do every day

I live the hybrid life: I run long, including ultramarathons, and lift alongside it. The other 22 hours get the same care — food, sleep, routines and recovery are planned, not left to chance. I ran 60km on my 30th birthday to raise money for men’s wellbeing, and the next ultra is already on the calendar.

How I help you

Structured programs you can start today — running, strength or hybrid — with clear sessions, progressive weeks and injury prevention built in. Want me in your corner? 1:1 coaching wraps nutrition, sleep, habits and mental resilience around your training.

Why my philosophy works

Healthy body, healthy mind — they work as one, and you perform at your best when you’re in tune with both. Results come from showing up, not from shortcuts: a plan you can actually follow, progress that compounds week after week, and a mindset that holds when motivation doesn’t. Same approach for a pro roster and a first-time 5K runner.

Relentless isn’t intensity. It’s consistency.

Start Free Trial — $19/mo Apply for 1:1 Performance Coaching

Justyn, coach and co-founder of Relentless Theory

Justyn MeilleurCoach & Co-Founder

Coach · Co-Founder

Iron, family, routine.

I’m Justyn Meilleur — coach and co-founder of Relentless Theory. I come from American football and I’ve been training with weights for over 20 years. Today I do it around a packed schedule, a physical job and a family.

Who I am

I’m a dad with a demanding, physical job. American football shaped how I train, and I bring 20+ years of strength training to everything I coach. I train every day and eat well — not as a hobby, but as a system that keeps me healthy, strong and present for my family.

What I do every day

I fit daily workouts and healthy nutrition into a full schedule. Short, focused sessions, simple meals, routines that survive long workdays. If it doesn’t work on a busy day, it doesn’t make it into my plan.

How I help you

I coach people with busy schedules and physical jobs — people who are tired, short on time and still want to be strong and healthy. We build training and nutrition that fits your week, not the other way around.

Why my approach works

Two decades under the bar taught me that consistency beats perfect. A plan you can repeat on a hard week beats a perfect plan you drop after ten days.

No perfect schedule needed. Just a plan that fits yours.

Start Free Trial — $19/mo

Justyn with his wife and daughter — Family first. The system keeps it that way.

← Home

1:1 Performance Coaching

The other 22 hours.

Training is a small slice of your day. 1:1 performance coaching is built around the rest of it — for athletes at youth, university, academy or pro level, and for anyone who wants to get more out of their daily performance: more energy, a clearer head and a body that’s built to last.

Apply for 1:1 Performance Coaching

We work on what really drives how you perform: nutrition built around your life, sleep and recovery that fit your schedule, habits and routines that hold up when things get busy, and mental resilience for the moments that matter. Healthy body, healthy mind is the foundation — whether you’re preparing for trials and selection, or you simply want to show up as your best self every day.

NutritionFuelling built around your training and your life
Sleep & RecoveryProtocols that fit your schedule
Mental ResilienceMindset training for pressure moments
Habits & RoutinesSystems that hold up all season, all year
Health & LongevityBuilt to feel good for decades
1:1 AccessDirect coaching as you progress

Apply for 1:1 Performance Coaching

← Home

Corporate

A healthier team. Built in.

We offer corporate packages for whole companies or single units — from simple app access to the full experience. Your employees get a healthier lifestyle and real coaching, not just another perk nobody uses.

Request a Corporate Package

App access

Every employee gets the RT app on their phone — simple to start, easy to keep up.

Programs

Access to our Running, Strength and Hybrid programs, from first-timers to experienced athletes.

Nutrition tracker

Easy daily food tracking that builds awareness and better habits.

Leaderboards

Friendly competition across teams and departments that keeps people showing up.

Community

A shared space to train, motivate each other and stay accountable together.

Real coaching

Real coaches behind the programs, not just an app and a login.

Choose what fits: a whole company, one site or a single team — with app access only, or the full package with programs, tracking, leaderboards, community and coaching.

Request a Corporate Package

Relentless Theory.Built to last.

Real coaches. Real lives.

Three steps. Zero guesswork.

Pick one of the paths below

Subscribe and start

Train. Progress. Repeat.

Pick a path. Follow it through.

Running Path

Strength Path

Hybrid Path

What They're Saying.

Train with someone who does it every day. Start today.

Running Path

The Programs

Pricing

Strength Path

Pick Your Lane

Pricing

Hybrid Path

Pricing

Miles, systems, consistency.

Iron, family, routine.

The other 22 hours.

A healthier team. Built in.

Ready to start?