Kevin Launay is an engineer based in the Pays de la Loire region of France. Alongside his professional career, he supports athletes, judoka and high-potential individuals in developing sustainable performance, both physically and mentally. A judo instructor, as well as a certified physical and mental performance coach, he combines scientific knowledge, field experience and the philosophy of judo.

He is the author of ‘Le Manuel de la Performance Athlétique – Préparation Physique et Mentale du Judoka,’ a book he has translated into English and which he discusses here.
“The original version of the book was written in French, published in November 2025. I am a judo coach as well as a physical, mental and nutrition coach and this work is the result of several years of training, field experience and practical application with athletes.
The decision to translate the book into English came naturally. After publishing the French version, I realised that the content could benefit a much wider audience, especially within the international judo community. A key turning point for me was a serious accident at the end of 2024, which forced me to rethink performance, recovery and long-term athlete development. That experience reinforced my desire to share practical and useful knowledge with athletes and coaches. READ MORE

The history of judo in Britain was shaped long before modern sporting structures were established. In the early decades of the 20th century, a small number of Japanese masters played a decisive role in introducing and spreading Kodokan judo across the country. Among them was Masutaro Otani, a figure whose influence remains deeply rooted in the foundations of British judo. READ MORE

Most of the Koka Kids books are now in multiple languages (English, French and Spanish). CLICK HERE
Want judo books that teach, challenge and inspire? Koka kids publishes chlidren's judo books that help children learn and enjoy judo. Delivered world wide.






Black belt Neil Ohlenkamp

Competitive Judo Ron Angus





















JUDO WORLD TOUR - The globe-trotting Judoka
by Morgan Girardeau
A crazy plan to some, an ambitious project to others, reckless or brave!!! An idea that first went through my mind in 1996, on the day that I got my black belt: the desire to travel and explore the world, club by club, dojo by dojo, practising judo as I went! Reaching out to others, learning about their culture, their environment, sharing with them this same passion for the effort and the values and principles devised by the founder of this martial art and educational system! This dream of every judoka, this extraordinary personal adventure, from 14 September 2015 to 12 July 2017, I did it! In all humility, I swapped my status as a teacher for that of a student! I went and I managed to take part in training in 41 countries, a symbolic number representing my age when I finished my intense, eventful, moving and challenging journey!
