https://www.swissstagecombatinstitute.com/challenge-page/153a7a10-b54e-42d3-a830-848770e7dfc0 2026-05-04 https://static.wixstatic.com/media/2819a8_a9e16e8f8ebc45c08d9ee1945edb4340~mv2.jpg/v1/fit/w_1000,h_800,al_c,q_90/file.jpg Robin Birrer, Peter Kurmann https://www.swissstagecombatinstitute.com/challenge-page/819417b1-a811-419e-871c-8e199bd5f26d 2026-04-11 https://static.wixstatic.com/https://static.wixstatic.com/media/2819a8_755e2cd5bbb1489b828da1b218e943b7~mv2.png/v1/fit/w_1000,h_800,al_c,q_90/file.jpg