| 2012-03-28 | 2012-04-01 | 9. International Tangofestival Doble Ocho |  Nijmegen | CONFIRMED | Constantin Rüger y Judith Preuss | dance teacher |
| 2011-05-08 | 2011-05-15 | 6. TangoSafari to Italy in the toscany - Arezzo |  Arezzo | CONFIRMED | Judith Preuss | DJ |
| 2011-05-08 | 2011-05-15 | 6. TangoSafari to Italy in the toscany - Arezzo | Arezzo | CONFIRMED | Judith Preuss | dance teacher |
| 2009-05-28 | 2009-06-01 | 9. Internationales Tango Festival Berlin |  Berlin | CONFIRMED | Constantin Rüger y Judith Preuss | dance teacher |
| 2009-04-08 | 2009-04-12 | 6. International Tangofestival Doble Ocho | Nijmegen | CONFIRMED | Constantin Rüger y Judith Preuss | dance teacher |
| 2008-04-11 | 2008-04-13 | 1. Tango Europa Festival Berlin | Berlin | CONFIRMED | Constantin Rüger y Judith Preuss | dance teacher |
