ADCC Submission Wrestling World Championship
John-Olav Einemo (born 10 December 1975) is a retired Norwegian mixed martial artist. He is also a Brazilian Jiu-Jitsu practitioner, with the highlight of his career being the win in the ADCC Submission Wrestling World Championship in 2003 (88–98 kg weight class). He is the only man to defeat multiple-time BJJ champion Roger Gracie in the ADCC Submission Wrestling World Championship tournament. He holds a black belt in Brazilian Jiu-Jitsu.