- Wed, Feb 14H.J.E. Wenckebachweg 6Feb 14, 2018, 9:00 PM – 11:00 PMH.J.E. Wenckebachweg 6, H.J.E. Wenckebachweg 6, 1096 AN Amsterdam, NetherlandsThe latest winner of Combat Jiu Jitsu at EBI 13 and 10th Planet Blackbelt Richie "Boogeyman" Martinez for a two hour seminar to learn new jits, get inspired, and have fun! All are welcome!