Understand your training. Train with confidence.
We turn the data from your watch and phone into clear, honest answers about your fitness and recovery — so you know when to push, when to ease off, and whether you're on track for your race. No jargon, no guesswork.
How fit and tired are you, really?
Every workout you log feeds three simple numbers: your fitness (what you've built over weeks), your fatigue (how tired you are right now), and your form (how ready you are to perform).
Your last 14 days
Fitness
6 weeks
Fatigue
this week
Form
ready to go
Load ratio
in safe range
Training zones built from your own data.
Your heart-rate and pace zones come from your own results — not a rough guess. And we remember where each number came from, so you always know how much to trust it.
Heart rate & pace thresholds
from short tests you can do yourself
Run critical speed
from your recent best efforts
Bike thresholds
from the sessions you've logged
Zones that move with you
updated as your fitness changes
Should you train hard today?
Score 82 — you're primed for today's tempo session.
A plan that builds toward your race
Your season is shaped back from your race date in easy-to-follow blocks — building, peaking, then tapering — with rest weeks built in so you arrive fresh and ready.
Safety checks on every change
Nothing gets added to your plan — by you or by the coach — if it pushes you toward overtraining. Every change is checked against proven guidelines before it lands.
Things people often ask.
Do I need to understand the numbers?
Not at all. The engine does the maths; you get plain-English answers. You'll see 'you're fit and fresh' long before you'd ever need to look at a fitness score.
How is this different from what my watch tells me?
Your watch shows raw numbers. The engine turns those into context — how hard you've been training, whether you're recovering, and what you should do next — then explains it in words.
What if I don't have a power meter or chest strap?
You'll still get useful guidance from pace, heart rate and perceived effort. The more data you connect, the sharper it gets — but you don't need top-end gear to start.
Can I trust the numbers?
Yes. Every metric is calculated from established formulas and checked against published reference values — not guessed by an AI. The whole point is numbers you can plan around with confidence.
Numbers you can trust.
Get the clarity to train smarter — then let the plan and coach build on top of it, if you choose.