About me

My story

I’m a son, brother, partner, student, coach but most importantly a father.
Matyas Szeiler the coach

Hello, My name is Matyas Szeiler.

I started coaching people 14 years ago, first onsite but since COVID I only do online coaching. Since 2021 I am a father.

As an athlete, I was curious to know how the human body works, how I can improve my performance and what effect physical exercise and nutrition has on my health. To learn more about this subject, I completed a Bsc in Sports Science, a MSc in Human Movement Sciences and an another MSc in Food Innovation.

Next to gaining theoretical knowledge, I was and still I am actively practicing sports.
My parents took me into sports at a young age, I tried many things through football, swimming, basketball and ended up in triathlon.

My story

I did triathlon for 8 years before switching to long distance running (2x marathon 3h23min PB, multiple half marathons). During university I tried several sports (judo, athletics, ball games, gymnastics, CrossFit, surf). In the last few years, I started doing martial arts (blue belt BJJ) and Krav-Maga, but alongside that I do regularly run and strength training.
Seeking for the potential: as an athlete, I always seek for a better time, more distance, higher jump or better skills.
Reaching a goal that once seemed to be impossible is something amazing.

Education & Experience

Main Studies

Bsc in Sports Science


EXOS Phase 1


Erasmus Scholarship

University of Limerick | IE/IRL

Msc in Human Movement Sciences

Maastricht University | NL

Dutch Olympic Committee: Research scientist



Club La Santa

Performance Coach

R-Med Performance Center

Human Performance Specialist, Nutrition Coach

Ancora Health

S&C coach

Team Aqua Martial Arts Rotterdam

Nutrition Advisor

Kralingen Running Club

Performance Coach

Robic Cycling Coaching