Galerie
17 October | DAY1 HEALTH Club | 9:00–18:00
Hybrid training today is no longer just a combination of running and strength training. It is a complex system that brings together aerobic capacity, power, strength endurance, movement economy, the ability to perform under fatigue, and, above all, the ability to integrate all these components effectively.
Human physiology has not changed. But the demands athletes face have.
Hybrid competitions such as HYROX create a specific combination of demands that traditional endurance or strength training approaches often fail to address. Having a big “engine” is not enough. Being strong is not enough. Running well is not enough.
What matters is how these abilities interact and how effectively an athlete can use them when fatigued.
So how do you actually prepare a hybrid athlete?
Can you understand physiology well enough to know why you are prescribing a specific training session, who it is appropriate for, and where it belongs within the long-term training process?
What are the real KPIs of hybrid training?
What type of running training is right for a specific athlete, and which approach will actually improve their race performance?
What role do aerobic base, threshold, VO₂max, running economy, and strength endurance play?
How important is maximal strength, and when does further development stop delivering the results we expect?
How do you train the ability to produce force under fatigue?
And most importantly:
How do you integrate these abilities so they support each other rather than compete with one another?
A full-day theoretical and practical seminar combining sports science, coaching, and experience from elite-level competition.
Don’t expect a single universal training program. We will show you a system for thinking about hybrid performance:
DAY1 HYBRID PERFORMANCE FRAMEWORK
DEMANDS → PROFILE → LIMITER → INTERVENTION → INTEGRATION → RESPONSE
WHAT WE WILL COVER
Physiology & Evidence
What hybrid performance actually requires and what we currently know about training for it.
Assessment & Profiling
How to identify an athlete’s strengths and determine their primary limiter.
Training & Programming
Running, strength, muscular endurance, concurrent training, fatigue management, and individualization.
Pacing & Race Performance
How to use physical preparation effectively on race day.
Practice with Purpose
Race-specific movement technique + 2 practical training sessions. Each block has a clear objective and an explanation of what we are training, why we are training it, and who it is for.
Case Studies
From athlete profiling and identifying the limiter to building a specific training program.
WHAT YOU WILL GET
We don’t teach you how an elite athlete trains.
We teach you how to think about training a hybrid athlete.
WHO IS MARTIN ITERSKÝ?
Martin Iterský is a strength & conditioning coach with more than ten years of experience in professional sports. Throughout his career, he has worked with HC Sparta Praha, HC Kometa Brno, HC Energie Karlovy Vary, Metallurg Magnitogorsk in the KHL, as well as the Czech national ice hockey team at both senior and U20 levels.
He currently works individually with elite athletes, including Luboš Horký, Dominik Frodl, Karel Vejmelka, Karolína Plíšková, Alena Labaštová, and other professional athletes.
He also shares his experience as an educator and as Head of Performance at DAY1, where he leads the coaching team.
WHO IS TOMÁŠ TVRDÍK?
Tomáš Tvrdík is an elite Czech athlete with more than twenty years of experience in competitive sports. Throughout his career, he has competed across a wide range of disciplines — from mountain biking to powerlifting and strongman, as well as OCR, Spartan Race, CrossFit, and hybrid fitness. His greatest achievements have come in disciplines combining strength and endurance.
He represented the Czech Republic in MTB cross-country for nine years before establishing himself among the Czech and European elite in obstacle course racing. He is a two-time Czech OCR champion and has also won medals at European and World OCR and Spartan Race competitions.
Today, he specializes primarily in HYROX, where he competes among the world’s elite. He races in the prestigious Elite 15 category, finished 3rd at the 2026 European Championships in London and 9th at the World Championships in Stockholm. His personal best of 53:18 is also the world record in the 40–44 age category.
He also shares his extensive experience across endurance, strength, and hybrid disciplines as an educator, with a focus on effective preparation for fitness racing.
ORGANIZATIONAL INFORMATION
Physiology. Programming. Practical application. Real-world know-how.
From the fundamentals to detailed coaching decisions in real-world hybrid training.