Fuel Tank
A live glycogen estimate for your current day. Use it to understand your readiness for high-intensity work and avoid under-fueling before key sessions.
What you get: current level, trend, and next action.
Transparent IntelligenceView the Architecture
Train by Watts. Fuel by Physiology.
The AI Endurance Coach that adapts training, recovery, and fueling every day. Start free — 14-day full-access trial included.
Coach Watts Live
Daily Insight
FITNESS SCORE
72 +2.4
RECOVERY
34%Low
Stop counting calories. Start fueling for the work ahead.
Coach Watts combines your training load, meal logs, and planned sessions to estimate fuel availability and tell you what to eat, when to eat, and why it matters for performance.
Metabolic Horizon
A rolling projection across upcoming days. It highlights when your plan may accumulate fatigue so you can correct fueling before performance drops.
What you get: trendline, risk windows, and confidence cues.
Fueling Windows
Pre, intra, and post-workout targets for carbs, hydration, and sodium based on your planned training and current state.
What you get: practical targets you can execute without guesswork.
Live Fuel Demo
Example timeline: same workout, different fueling strategies.
06:0009:0012:0015:0018:0021:00
Threshold line: 35%Pre-Workout WindowWorkout StartWorkout End
Projected Session Outcome
Based on the selected fueling strategy.
Start Workout At
58%
End Workout At
41%
Expected Session Quality
Stable execution
A pre-session carb hit lifts your starting fuel and helps sustain quality through the main set.
Fuel estimates are model-based and improve with consistent logs and completed sessions. They are not direct lab measurements.
From Raw Data to Gold Medal Strategy
We don't just show you charts. We ingest your entire digital physiology, analyze the hidden patterns, and build a coaching strategy that includes training and fueling.
01
Connect Data
Connect your training and nutrition apps. We combine Strava, Whoop, Garmin, Yazio, and more into one performance timeline.
02
Model Readiness
Our AI models fatigue, recovery, and fuel availability so you can see what standard charts miss.
Status: Deep Fatigue Detected
03
Plan Fueling
Get pre, intra, and post-workout fueling targets with carbs, fluids, and sodium based on your actual training load.
Fuel: OptimizedRecovery: Balanced
04
Execute Daily
Receive specific actions for training and nutrition. Know whether to push, recover, or refuel before your next key session.
Coach Watts
“Fuel low for threshold work. Add 60g carbs 90min pre-ride.”
Your Data, Unified.
We sync with the tools you already use. Stop jumping between apps and see the full picture of your performance.
Garmin
Auto-Import
Strava
2-Way Sync
Rouvy
2-Way Sync
Intervals.icu
2-Way Sync
WHOOP
2-Way Sync
Oura
2-Way SyncThe Brain Behind the Performance
We don't just count steps. Coach Watts uses a multi-layered AI pipeline to construct a "Digital Twin" of your physiology.
Context is King.
Most platforms analyze a workout in isolation. Coach Watts analyzes it in the context of your entire history, your nutrition, and your recovery.
- Unified Data View
- We unite data from all your connected sources into a single, comprehensive view. This solves the "fragmented data" problem.
- Smart Workout Analysis
- Every new workout is analyzed by our AI Coach to extract qualitative insights (e.g., "The athlete struggled with power in the third interval due to potential fatigue").
- Your Digital Twin
- These event insights feed into a persistent "Athlete Profile." This living profile evolves daily, tracking fatigue resistance, recovery patterns, and mental resilience.
- Holistic Coaching
- When the Daily Coach runs, it reads the Athlete Profile, not just the raw data. This allows it to say "Your recovery is low, and historically you get sick when training in this state" rather than just "HRV is low."
Workouts
Wellness
Nutrition
DATA ENGINE
Unification & Security
WORKOUT ANALYSIS
NUTRITION ANALYSIS
Updating State...
DIGITAL ATHLETE TWIN
Fitness: 8.5/10
Fatigue: High
Trend: Peaking
Based on your profile, you respond best to rest when HRV drops below 40ms. Let's take today off.
Why our athletes consistently outperform their past selves.
Plans That Adapt When Life Happens
Plans that adapt to your sleep score. If you slept 4 hours, we won't ask for a VO2 Max session.
TODAY'S PLANADAPTED (POOR SLEEP)
Endurance Ride (Z2)
1h 30m • 140-160W
VO2 Max Intervals
Cancelled due to recovery
Readiness-Aware Coaching
Every day starts with a readiness check. We adapt session intent based on fatigue, recovery, and recent load so you train hard on the right days.
Know Your Fuel State
Track glycogen trends, see metabolic horizon risk, and get actionable fueling targets before and after key sessions.
24/7 Coaching Brain
Set Goals. Crush Them. Don't Just Train. Train with Purpose.
Whether it's a podium finish, a power target, or weight loss, Coach Watts keeps you on track with personalized adaptive coaching.
Event Prep
“Gran Fondo New York”
Peak for race day with periodized blocks.
Due Oct 12High Priority
Performance
“Increase FTP to 300W”
Structured intervals to boost threshold.
Target: 300W
Weight
“Reach 70kg Race Weight”
Fuel targets adapt to training load, not just calories.
-2.5kg to go
Consistency
“Ride 5 days/week”
Build habits that stick.
Notes from the saddle
MO
Maya Okonkwo
Cat 2 Racer
“I finally broke the 4 W/kg barrier after years of stagnation. The AI insights identified exactly where I was overtraining.”
JK
Jonas Keller
Gravel Cyclist
“The adaptive planning saved my season when work got crazy. It automatically adjusted my week so I didn't burn out. It's like having a pro coach in my pocket, but one that actually understands I have a job.”
ER
Elena Ruiz
Triathlete
“Transparency means I can trust the algorithms. No black boxes, just pure data science applied to my physiology.”
Plans for Every Athlete
Start free with a 14-day full-access trial. Upgrade when you need more.
Free
$0
The smartest logbook you've ever used.
- Unlimited data history
- Manual sync mode
- On-demand analysis
- Quick AI analysis
Cancel anytime. Instant downgrade to Free.
Most popular
Supporter
$8.99/ month
Billed monthly
Automated insights for the self-coached athlete.
- Automatic sync for workouts and health metrics
- Always-on AI analysis after new activities
- Priority processing during peak usage
- Reliable trend tracking and weekly summaries
Cancel anytime. Instant downgrade to Free.
Pro
$14.99/ month
Billed monthly
Your full-service Digital Twin and Coach.
- Adaptive race strategy and periodized planning
- Thoughtful AI coaching with scenario analysis
- Proactive alerts for readiness and overreaching risk
- Advanced trend intelligence with long-horizon forecasting
- Fast-lane priority processing and response
Cancel anytime. Instant downgrade to Free.
Paid plans include a 14-day money-back guarantee. No credit card required to start free.
Ready to reach your peak?
Join endurance athletes using Coach Watts to train smarter and fuel with confidence every day.