Onechai Muaythai

Onechai Muaythai is a Muay Thai club on Södermalm in Stockholm, located at Bergsunds strand 37, with a focus on Muay Thai and K-1/kickboxing for all levels — from beginners to elite practitioners.

The training facility covers 400 square metres with approximately 180 square metres of active training space, and each session is led by two to three instructors with a limited number of practitioners on the mat. This is a deliberate choice that prioritises quality over volume. The training programmes are overseen by Peter Wetzelmayr, head instructor with 22 years of experience and over 15,000 hours of instruction, whose students have won titles including Nordic championships, European Championship gold and U23 World Championship gold. Over its 15 years, the club has produced five Swedish junior champions and five Swedish senior champions.

Suited to those who want to train a martial art with clear technical progression in a welcoming environment with a strong sense of community — whether you are a beginner or aiming for competition.