Sihing John started training martial arts in 2000, at age 16 under Steve Grantham. Achieved the rank of black belts in the art of JKD and Filipino Kali at age 20. Senior Associate Instructor under Guro Dan Inosanto in the arts of Filipino Kali, JKD, and Indonesian Silat. Instructor under Guro Dan since age 22 (2006). Wing Chun Black Belt and Instructor under Sifu Francis Fong since 2017. Brazilian Jiu-Jitsu black belt under Professor Pedro Sauer and Alan Baker in 09/2017. Outside of martial arts. ICU RN. BSN RN, 2014. BA Finance 2008.
- 1st-degree lack Belt in Gracie Brazilian Jiu-Jitsu
- Black Belt JKD
- Black Belt Filipino Kali
- Black Belt Wing Chun