Oliver Taza is a Jiu Jitsu Black Belt under John Danaher representing New Wave Jiu Jitsu. Taza is one of the most active competitors in the Jiu Jitsu scene. He is an ADCC European champion, IBJJF World Champion, Pans World champion and three time ADCC veteran.

Taza is also a regular invite on the UFC Invitational and other national competitions. Ranked as one of the top athletes in the world for no-gi Jiu Jitsu, Oliver Taza brings his highly competitive style of Jiu Jitsu to students of all levels at Black Widow MMA.