AI-Powered Science

AI That Understands
Exercise Physiology

pAIce combines the Banister Fitness-Fatigue model with intelligent adaptation - analyzing every run, adjusting every plan, and coaching you with methods used by elite athletes.

Olympic-level methodology, personally applied by AI

AI Analysis

Every run understood

Fitness Modeling

CTL/ATL/TSB tracking

Smart Periodization

Base, Build, Peak, Taper

Adaptive Plans

Adjusts as you train

Your Fitness State, Quantified by AI

AI applies the Banister model to track your fitness in real-time

  • CTL: AI tracks your long-term fitness buildup
  • ATL: AI monitors fatigue to prevent overtraining
  • TSB: AI tells you exactly when you're race-ready
AI continuously updates as you train
Performance Management

Banister Fitness-Fatigue Model

Current CTL

80.4

Form

-10.5
90-day trend
+62% fitness gain

AI Analyzes Every Run, Automatically

No manual tagging. AI understands your workout from the data.

  • Classifies workout type automatically
  • Detects intervals and work:rest ratios
  • Analyzes hills and calculates TRIMP
  • Provides AI-generated recommendations
AI reads your data so you don't have to
4×1km Interval Training

Tuesday, 6:45 AM

4 work3 rest
1234
Avg Work

3:55/km

Avg Recovery

5:00/km

Work:Rest

1.4:1

Work HR

175 bpm

Interval Timeline
WUWorkRestCD
WU
W
R
W
R
W
R
W
CD
StartEnd

AI Insight

Excellent pacing consistency across all 4 intervals (CV: 1.8%). Recovery HR drops efficiently between sets. Your 4th rep was the fastest - strong negative splitting.

AI Designs Training for YOUR Specific Race

Upload your race course. AI creates terrain-specific preparation.

  • GPX analysis with elevation profiling
  • AI identifies key challenging segments
  • Generates race-simulation workouts
AI knows your race before you run it
Boston Marathon
42.2 km-141m net248m ↑

Key Challenges

Quad Destroyer

-140m in first half

Newton Hills

4 hills, km 26-34

Insider tip: The early downhill destroys your quads before the hills. Start conservative - many run their first half too fast here.

Training Recommendation

Train for eccentric quad loading with downhill repeats. Schedule a 20km run with 150m descent to simulate the first half. Add 4×800m hill repeats at 5% grade for Newton Hills preparation.

How It Works

1

Set Your Race Goal

Choose your race. Upload the course GPX and AI analyzes the terrain.

2

Connect Your Data

Link Strava, Garmin, or upload files. AI learns your training history.

3

Get Your AI-Generated Plan

AI creates periodized phases with safe progression tailored to you.

4

Train & Adapt

AI analyzes each run, adjusts your plan, and keeps you on track.

Chat With Your AI Coach Anytime

Get answers about your training, backed by your actual data and exercise science

AI Coach

Online

Quick questions

How is my fitness trending?

AI Coach

Your fitness (CTL) has been steadily building over the past 6 weeks. Here's what I see:

  • CTL: 52 → 68 (+31% improvement)
  • ATL: Currently at 75, slightly fatigued
  • TSB: -7, suggesting you're absorbing training well

With 8 weeks until your race, you're on track. I'd suggest a recovery week soon to consolidate these gains.

Ask about training, race strategy, recovery...

AI Coach has full context of your training history, goals, and feedback

Free forever tier

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