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For people who love hybrid racing
Your hybrid race,
turned into a 12-week plan.
The free app that builds your training for a hybrid fitness race — Hyatlón, Hybrid Day or any race that mixes 8 × 1 km of running with sled push, wall balls, ski erg and sandbag lunges. Answer six questions, get every session: what to do, at what pace, with what load.
Free foreverReady in 2 minutesNo card
Effort distributionWeek 4
Z1Z2Z2Z3Z4Z3Z5
Weeks
12
Sessions
60+
Cost
0€
Free forever·Concurrent-training science·A real video for every exercise·No card, no trial·Free forever·Concurrent-training science·A real video for every exercise·No card, no trial·
How it works
From your race date to tomorrow’s session.
1
Tell us your race
Your target time, the days you can train and the kit you have. Six questions, two minutes.
2
The engine builds your 12 weeks
Base, build, peak and taper — with your running paces and loads derived from your own marks.
3
Train from your phone
Add it to your home screen and open today’s session: warm-up, targets, real video and one tap to log it.
Who it is for
If you race hybrid, this was built for you.
Your first hybrid race
You signed up and you do not know how to combine running with the stations. Start here.
You already compete
You want to stop guessing and follow a periodised block that peaks on race day.
You train for two things at once
You lift and you run, and you are tired of plans that only understand one of them.
Strength
Strength
Barbell, sled, power. Weights guided in plain terms: “≈75% of your best, leave 2 in reserve”.
Endurance
Engine
Z1–Z5 zones in plain language. The aerobic engine behind every station.
The science that runs it
Built on concurrent training.
Train strength and endurance at once and they fight each other — the interference effect. The same signal that builds your aerobic engine (AMPK) quietly dampens the one that builds strength (mTOR). Most hybrid plans ignore this. Ours is designed around it.
It reads your phenotype
From your basic marks the engine classifies whether you lean strength- or endurance-dominant, and shifts the balance so your weak side catches up without stalling the strong one.
It sequences your week
Hard strength and hard endurance are spaced and ordered so each adaptation lands clean — never blunted by the session before it.
It keeps you polarized
Roughly 80% easy, 20% genuinely hard — the intensity distribution the evidence keeps pointing to, tracked session by session.
The method
A coach that reads the science for you.
Every rule in the engine traces back to published research. You just train — and never pay a thing.
80/20
Polarized intensity
Mostly easy, occasionally very hard (Seiler, 2010).
≥6 h
Interference managed
Strength and endurance kept apart (Coffey & Hawley, 2017).
+10%
Load that respects you
Inside the safe acute:chronic window (Gabbett, 2016).
Real video
Never wonder how a movement is done.
Compete
Train with a date in mind.
Full calendar →One email a week. Hybrid training, distilled.
An evidence-based tip and the upcoming events, every Monday. Free, unsubscribe anytime.
FAQ
How to train for a hybrid race
What is a hybrid fitness race?
A hybrid fitness race alternates running segments — typically 8 × 1 km — with functional strength stations such as sled push, wall balls, ski erg, rowing, sandbag lunges and burpee broad jumps, testing endurance and strength together.
How do I train for a hybrid race?
Train 4–6 days a week over about 12 weeks, combining running at varied paces with functional-strength sessions, and rehearse the run-to-station transition every week so you adapt to running on fatigued legs.
Is the plan really free?
Yes — it is a free web app, forever. No card, no trial, no app store and no subscription. It runs in your browser.
What is the interference effect?
It is when endurance training blunts strength and muscle gains. The engine separates hard running and heavy lifting so each adaptation lands clean — the core of concurrent-training science.
What is Hyatlón and how do I prepare?
Hyatlón is a hybrid discipline recognised by the Spanish Triathlon Federation that mixes ~1 km runs with functional stations. Prepare with three weekly runs plus two functional-strength sessions and station-specific practice.
How many days a week should I train?
Most athletes progress well on 4–5 days a week; beginners can start at 3–4 and add volume as the 12-week plan progresses.
Your next twelve weeks start now. Free forever.
Train under supervision. We recommend training with a qualified coach: HybridBeastBrain is a tool that complements — it does not replace — your coach’s guidance, and it is not medical advice. Always follow your coach’s and doctor’s instructions.