Jose Ortiz, Nidan

Owner/Head Instructor: Sensei Jose began his wrestling career in the 7th grade in 1974 and continued to wrestle not only through high school but also through three years of college, winning numerous medals, trophies, and achievement awards. While still in high school, Jose began studying Tang Soo Do and continued it for many years. In 1989, he was introduced to Dan Zan Ryu Jujitsu at the Amador Judo & Jujitsu Studio training under Professor Rory Rebman in Livermore CA. earning his 1st degree Black Belt in 1992 and his 2nd degree Black Belt in 1999. His current instructor is Sensei David Fairfield. Sensei Jose Ortiz continued his passion for competing and has placed four times at the AJJF I AAU Nationals in the Black Belt Division, including claiming the 1999 Gold medal. His wrestling career did not stop with college though, he was the assistant coach to the California High School Grizzlies 1985-1986, assistant coach to Summerville High School’s Bears 1996-1997, and The Head Coach to the Bears from 1997 to 1999.

Chantilly Ortiz, Shodan

Owner/Manager, C.M.T., Head Instructor of Women’s Class: Sensei Chantilly is not only a student and manager of Mountain Storm Jujitsu, but is also certified in Seifukujitsu (Japanese Restorative Massage based in Traditional Chinese Medicine). She received her Shodan (1st degree black belt) in September 2000 and has been teaching a Jujitsu class for women since 1999 and took over instruction of the Old School Jujitsu class for students 40 years old and up in 2002.

Professor Dave Fairfield, Rokyudan

Senior Instructor, C.M.T.: Professor Fairfield joined our Dojo in 1998 when he retired after 35 years from Alameda High School, and with his wife Allison moved to Twain Harte. Sensei Fairfield began training with Professor Wally Jay in 1962 in a back yard Dojo. He later taught Jujitsu at Alameda High for 28 years as a PE course. Sensei has received many honors throughout his martial arts career, including induction into the World Martial Arts Hall of Fame and Teacher of the Year. He earned his 6th degree Black Belt in 1996. Not only is he skilled in Jujitsu but is also an Instructor of Okazaki’s Long Life Massage and Healing Arts, as well as coaching Sonora High Schools Tennis Team in 1999 and is currently coaching swimming locally.

Sensei Oscar Ontiveros, Nidan

Instructor: Sensei Oscar wrestled all 4 years in high School (3 of those at Summerville High) and 4 years at California State University, Chico. Oscar’s collegiate wrestling coach, Armand Brett (Sandan or 3rd degree black belt) introduced him to Dan Zan Ryu Jujitsu in 1985. He then joined the Nibukikan Martial Arts Studio where he studied under Prof Lamar Fisher, Prof Tom Jenkins and Prof Geoff Lane. He earned his Shodan in 1993 and Nidan in 1995. He became a teaching assistant for Sensei Brett at CSU, Chico, and served as head instructor for the college jujitsu course from 1993 to 2000. In addition to Jujitsu, he has studied Judo, Aikido, Escrima/Kali and Jeet Kune Do. Sensei Oscar became a member of our Dojo in 2001 after returning to the area.

Sensei Roy Opsahl


Sensei Erik Waight

Instructor: Sensei Erik started an interest in martial arts at the age of four after watching Bruce Lee’s Way of the Dragon. Coming to Mountain Storm Jujitsu in 2008 as a young man. His passion and love for the martial art would earn him his Shodan (1st degree black belt), in 2010, and has begun teaching his own class on Friday Nights!
Sensei Erik has studied Wing Chung, Aikido, and Tae Kwon Do, as such these martial arts, and their philosophies, heavily influence his specific style and teaching method. He is a melting pot of of different perspectives and approaches to Jujitsu which shine through in all of his techniques and his character.


Sensei Steven Hinshaw