Athlete State Intelligence
Know your true
training state.
Your devices collect the data. Ryun turns it into answers. Ask your AI coach about recovery, pacing, or race readiness — any device, any time.
Am I ready for a half marathon in 3 weeks?
Based on your current fitness profile, you’re in a solid position for a half marathon but should manage the taper carefully.
Current Fitness State
VDOT: 48.2 (predicted HM: 1:32:14)
CTL: 52.3 (trained)
TSB: +4 (fresh)
ACWR: 0.88 (safe zone)
Recommendation
Begin taper in 10 days. Reduce volume by 40%, maintain two threshold sessions. Target race-week TSB: +8 to +12.
Simulated examples for illustrative purposes. Actual responses vary based on individual data availability and connected devices.
Integrations & platforms
Made for serious
endurance athletes
An AI coach that never forgets a session. Every insight grounded in your data and peer-reviewed science. Available 24/7 at a fraction of the cost.
Your training, quantified.
Every session interpreted. Fitness, fatigue, and form — the metrics that predict your next breakthrough.
HRV Recovery
Nightly lnRMSSD with 7-night rolling baseline
Training Load
Rolling CTL/ATL/TSB with configurable decay constants. No manual logging.
Zone Distribution
Session-level polarization index. Weekly 80/20 compliance tracking.
HRV Trends
Nightly lnRMSSD with rolling baseline and SWC bands. Recovery status scored daily.
Race Equivalents
Auto-calibrated from every hard effort. 5K through marathon.
The science
engine
Manage training end-to-end
Consolidate phases, milestones, sessions, and documentation in one centralized plan.
- Properties
- Build PhaseMarathon
- Links
Milestones
Track progress and status
Communicate training health with built-in session updates and status tracking.
Training load exceeded safe limits, forced deload triggered for recovery…
HRV trending below baseline for 3 consecutive days, monitoring…
Readiness score normalized, resuming build phase progression
Science Engine
Fitness, fatigue, and form
Banister’s impulse‑response model tracks your chronic training load (CTL), acute load (ATL), and training stress balance (TSB) across every session.
CTL
52.3
Fitness
ATL
61.8
Fatigue
TSB
-9.5
Form
Ramp Rate
6.2%
Safe
HRV Trends
Nightly lnRMSSD with 7-night rolling baseline and SWC bands.
Pace Zones
VDOT-calibrated zones from easy to repetition. Auto-updated.
Polarization
80/20 intensity distribution. Per-session and weekly.
Injury Guard
ACWR and ramp rate monitoring with immutable safety limits.
Built on strong
foundations
- Auditable by design
- Every recommendation maps to a formula. Every formula maps to a paper. If you want to check the math, you can.
- Layered Intelligence
- Layer 1 computes training load and zones. Layer 2 generates insights. Layer 3 maintains athlete memory. Layer 4 translates everything into human-friendly coaching.
- Device-native Sync
- Garmin Connect integration syncs your full training history on day one. Suunto, Coros, and Polar coming soon. Strava as a secondary source.
End-to-end encryption
Your health data is encrypted at rest and in transit.
GDPR compliant
EU-hosted infrastructure. Delete your data anytime.
Open science models
Every formula references peer-reviewed papers. Audit the math.
Sub-second latency
Edge-computed sync. Coaching responses in under 3 seconds.
FAQ
Frequently asked questions
Technical details about the platform, the science, and how it works.
Science Notes
Get started
Start training with a coach that remembers.
Full access. No upsells, no hidden fees. 7-day free trial. Cancel anytime.
Full access, cancel anytime.
Get started- Ask anything, anytime
- Personalized training plans
- Recovery & readiness insights
- Garmin & Strava sync
- 7-day free trial
€3.33/mo
Best value for committed runners.
Get started- Ask anything, anytime
- Personalized training plans
- Recovery & readiness insights
- Garmin & Strava sync
- 7-day free trial