Adaptive endurance performance intelligence

Stop guessing what to train next.

Nymiva turns your event demands, athlete history, and current readiness into the next right session. Then verifies with you whether the intended adaptation actually happened.

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Runners

From a flat 10k to a mountain ultra. Age-graded pace ladders, downhill and eccentric durability, and the fatigue resistance the back half of your race actually asks for.

Cyclists

Road, gravel, climbing days and time trials. Your power curve, your thresholds and the climb lengths on your course decide the work, not a generic plan.

Triathletes

Swim, bike and run planned as one season rather than three. Shared aerobic work is reused, sport-specific work is protected, and transitions and bricks get real sessions.

Duathletes

Run, bike, run, with the run off the bike treated as its own demand. Multi-leg events are modelled leg by leg, so the second run is trained rather than hoped for.

What you get

Seven surfaces, one loop, in the order they happen to you.

Event analyzer

Upload the course and read what the day will demand of you.

The event cockpit for a triathlon bike leg: the course line on the map colored from tailwind cyan to headwind magenta by the race-day wind, the weather card showing the forecast with the same date in past years, the hill profile, and the leg scored across twelve demand dimensions.

Focus Lab

Your history is the supply, the event is the demand. We find the gaps.

Focus Lab comparing course demand against this athlete: aerobic durability sitting on target with reserve to spare, and aerobic endurance flagged as the focus with a measured gap to close.

Season planner

Those gaps become a season, laid out backwards from race day.

A 54 week season graph: weekly load bars rising through prep, base, build and peak, with fitness and fatigue trends drawn over them and a recovery week every fourth bar.

Calendar and workout planning engine

Press Plan my season and every week fills with sessions that train its focus.

A planned training week with the weather forecast in each day header, completed and upcoming sessions, and a summary panel showing compliance and the Focus Lab dimensions the week trains.

Performance

Curves, efficiency, decoupling and durability, measured from your own efforts.

Fitness climbing from 38 to 68 across a six month block with fatigue oscillating beneath it, beside the section menu listing load and volume, performance markers, peak performances, threshold evidence and the performance compass.

Workout library

Vetted structures with a stated purpose, an approved dose and a stop rule.

A library of vetted workouts, each card showing its interval shape, duration, load and the training dimensions it develops.

AI coach

A Nymiva harness puts the latest AI to work on your own training data, for a competitive training edge.

The coach ready for a question, offering openers such as asking what the next key session should be, or which Focus Lab gap is the highest priority.

Bring your own AI

Claude, ChatGPT and any app that speaks the Model Context Protocol can read your season, your training and your Focus Lab, and propose changes you approve in Nymiva. Included with every membership.

Connect your AI in a minute

Plans by event

Run

Bike

Triathlon

Duathlon

Several races in one season or every plan

Races, read by the engine

Analyze your own course, free

Every race guide

IRONMAN® and IRONMAN 70.3® are registered trademarks, and 5150 is a trademark, of World Triathlon Corporation. Nymiva is an independent training platform and is not affiliated with, sponsored by or endorsed by World Triathlon Corporation. Course data is read from the organiser’s public course pages for the purpose of describing the event.

The complete platform. AI when you want it.

Beta launch offer

50% off your first year

Enter the code BETA50 at checkout. The exact discount is shown before you pay anything.

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