The evolution of HYBRID training

In recent years, competitive fitness has evolved towards increasingly structured formats that combine strength, endurance and aerobic capacity in an integrated way.

Among these, the ATHX Games are one of the most interesting models in the hybrid fitness scene, thanks to an approach based on standardisation and the measurability of performance.

In this article, we analyse:

• What is ATHX?
• how a race works
• which physical abilities are tested
• how to prepare effectively

What is ATHX?

ATHX is a hybrid fitness competition that combines maximum strength, endurance and metabolic training through standardised and repeatable tests.

The aim is to make the performance:

• measurable
• comparable
• less dependent on variability

What is ATHX and why is it different from CrossFit and HYROX?

ATHX stands out for its more structured approach compared to other formats.

Key differences

ATHX

• standardised tests
• reproducible metrics
• predictable structure

CrossFit

• high variability
• a strong technical element
• often unpredictable stimuli

HYROX

• emphasis on endurance
• fixed endurance-based pattern
• less emphasis on maximum strength

How does an ATHX race work? 

An ATHX race lasts around 2 hours and 30 minutes and consists of 6 zones, 3 of which are competitive and 3 strategic.

Structure of the ATHX competition

Strategic (non-competitive) zones

• Warm-up
• Refuel
• Recovery

They are used for:

• neuromuscular activation
• nutritional management
• partial recovery between tests

Competition zones

1. Strength Zone

Maximum strength test on:

• Strict Press
• Back Squat
• Deadlift

Focus:
to generate bursts of strength under time pressure and accumulated fatigue

2. Endurance Zone

Alternating between:

• race
• rowing machine

Focus:

• aerobic capacity
• pacing
• fatigue analysis

3. MetCon X

High-intensity circuit featuring:

• SkiErg (start of circuit)
• Sandbag Carry
• Ground to Overhead with dumbbells
• Box Jump Overs
• Burpee Broad Jumps
• Walking Lunges
• SkiErg (end of circuit)

Focus:

• significant involvement of the anaerobic glycolytic system
• progressive build-up of peripheral fatigue
• ability to maintain output under pressure

Note
MetCon X is the most comprehensive and demanding challenge, combining strength, endurance and metabolic capacity.

What physical abilities does ATHX help to develop?

ATHX requires a well-rounded athletic profile.

1. Maximum force

Trained in the Strength Zone
→ neuromuscular adaptations

2. Aerobic capacity

Essential for:

• Endurance Zone
• partial recovery between tests

3. Anaerobic capacity

Particularly noteworthy in MetCon X
→ significant involvement of the glycolytic system

4. Efficiency in transitions

A factor that is often decisive:

• reduction in downtime
• better energy management

How to choose the ATHX category

The category should be chosen based on your ability to handle the workload in MetCon and maintain your pace during endurance sessions.

Categories: Lite, ATHX, Pro

Argument

• suitable for beginners
• reduced loads
• high accessibility

ATHX (intermediate)

• balance between strength and endurance
• requires a solid foundation

Pro

• heavy loads
• greater metabolic stress
• high mental demand

How to prepare for ATHX

1. Training for maximum strength

• low reps
• structured sequences
• load-bearing technique

2. Developing aerobic capacity

• I work in Zone 2
• interval training

3. Practising pacing

• race simulations
• intensity control

4. Improving transitions

• run → row
• strength → conditioning Reducing downtime is a real competitive advantage.

5. Building metabolic endurance

• high-density circuits
• lactate accumulation training

Common mistakes (quick answer)

The most common errors in ATHX are:

• starting too fast in endurance racing
• overestimating the loads in strength training
• neglecting diet and hydration
• do not practise transitions

ATHX Games 2026: schedule

The European circuit includes:

• Paris
• Berlin
• London
• Amsterdam

Final:
Lisbon – November 2026

Why ATHX is also of interest to coaches and gyms

ATHX also serves as a useful model for:

• plan structured training sessions
• monitor performance
• create progressive pathways

ATHX is a hybrid fitness competition that combines strength, endurance and metabolic training in a standardised and measurable format.

For athletes and coaches, it represents:

• a competitive incentive
• a useful model for planning

In conclusion

The evolution of competitive fitness is leading to the emergence of formats that are increasingly comprehensive, measurable and focused on actual performance. ATHX perfectly embodies this new generation of hybrid competitions, in which strength, endurance, metabolic capacity and strategic management must coexist in a balanced way.

For this reason, SIDEA continues to invest consistently in researching new training trends and emerging sports formats, developing professional equipment and solutions designed to meet the practical needs of athletes, coaches, gyms and athletic training centres.

A leading name in the European market for fitness equipment, functional training and physical conditioning for many years, SIDEA closely monitors developments in disciplines such as ATHX, HYROX, functional fitness and hybrid training, with the aim of offering equipment that is always up to date with the demands of modern performance.

The company is committed to enabling every athlete to train effectively, safely and in a targeted manner, using equipment designed to meet the challenges of new and emerging sports: from developing maximum strength to metabolic conditioning, right through to endurance training and high-intensity transitions.

In an ever-changing landscape, SIDEA remains a constant, promoting a training culture based on quality, innovation and advanced athletic preparation, whilst supporting the growth of disciplines that are redefining the future of competitive fitness.