participant
- Kahl, Wolfram Instructor 2017
- Kahl, Wolfram Instructor 2018
- Kahl, Wolfram Instructor 2019
- Kahl, Wolfram Instructor 2020
- Khedri, Ridha Instructor 2021
- Khedri, Ridha Instructor 2023
- Khedri, Ridha Instructor 2024
- Maccio, Vince Instructor 2022