FOR ATHLETES & FITNESS ENTHUSIASTS

A lab-grade physiologist, in every athlete’s pocket.

A watch reports how the night went. MyBya shows how to train. Measure real physiology, train to readiness, and watch the personal records stack up.

Whether the goal is an Olympic Trials qualifier or simply feeling fitter this year, MyBya's platform is now publicly available and not just for elite athletes and coaches. MyBya syncs with most wearables and training apps and adds expert analytics and customized training plans.

Launch Web App Compare athlete subscriptions
✓ Free to start. No credit card. Keep all data forever, even without upgrading.
An athlete checking a heart-rate monitor before a session

WHY ATHLETES CHOOSE MYBYA

The only app that customizes training off real-time physiology.

The best training plan is the one that meets each athlete where they are — individualized intensities, paces, and daily workouts derived from measured data, not a chart or last night's sleep.

01
Training-load monitoring
Know when fitness is building and when the hole is getting deeper.
02
Personalized zones
From a real test — not a formula based on age.
03
Individualized plans
Sport and event specific, and matched to current physiological readiness.
04
Performance prediction
See fitness trending toward the goal.
05
Fatigue management
Dynamic periodization and customized training to match real-time metabolic data. Reduce injuries. Achieve goals.
06
Fueling strategies
Align nutrition with real metabolic demands.

THE LACTATE ADVANTAGE

Lactate is the key to human performance.

Not a waste product to fear — lactate is the body's energy currency, and a real-time readout of how the body works under load. MyBya translates that signal into customized workouts that target exactly what will move performance, while keeping injury risk low.

FOR THE SCIENCE-MINDED

Anchoring zones to lactate systems — rather than a percentage of an estimated maximum heart rate, or an overnight HRV proxy — is what separates true individualized prescription from population averages. MyBya models each athlete's lactate systems precisely, then re-checks them as adaptation occurs.

FIG. — BEPS POWER SCORES app.mybya.com
BioEnergetic Power Scores across 8 lactate systems

FOR EVERY LEVEL

From a first 5K to the starting line at Olympic Trials.

TIER 01 · ENTHUSIAST

New to structured training?
Start with a guided heart-rate-only test and a plan that meets athletes exactly where they are.

TIER 02 · COMPETITOR

Chasing a plateau?
Add lactate testing to see precisely which system is holding performance back.

TIER 03 · ELITE

Competing seriously?
Track PRS across a full periodized build and arrive on race day primed.

The best season starts with one test.

Start free.

Launch Web App
Create your MyBya account

Not ready to self-test?

MyBya offers testing and consulting services for individuals and teams.