Become a Member
Register Online
Donate Now


YWCA Princeton Welcomes New Instructors Arthur Keintz and Emily Kwok

We are excited to introduce a new class - Brazilian Jiu Jitsu and to welcome our newest instructors -- Arthur Keintz and Emily Kwok. Both are recognized leaders in the sport.




Arthur Keintz began practicing martial arts at the age of six. After serving in the Army, he studied Thai Boxing and Jeet Kune Do, quickly advancing to become an apprentice in the JKD system. Active in the sport of Brazilian Jiu Jitsu (“BJJ”) for 14 years, he received his Black Belt in 2007. His extensive experience and numerous achievements include developing the curriculum for Princeton University’s BJJ Club and obtaining the rank of Brown Belt in Judo. Arthur has over 22 years experience in law enforcement and is a detective at the Hamilton Police Department. And, He is a NJ State Police Training Commission certified instructor and instructs Ground Defense Tactics at the Mercer County Police Academy.


Emily Kwok is a Black Belt Brazilian Jiu Jitsu practitioner, instructor, competitor and mentor. Training and competing for over nine years, the sport has taken her from Canada to Japan and New York. Best known as a World Champion and a multiple time Mundials medalist, she is also a Pan Am medalist, veteran of the prestigious Abu Dhabi Grappling Championships, SMACKGIRL’s all female MMA organization from Japan, a Grapplers Quest Champion, a NAGA Champion, Canada’s first female Black Belt, and the first Canadian Black Belt to have ever won a World Championship title. She is currently under the guidance of 4-time World Champion and 3-time ADCC Champion Marcelo Garcia in NYC and co-directs an organization which works to enrich the training and interaction of female BJJ practitioners around North America.

Top of page

YWCA Princeton
59 Paul Robeson Place
Princeton, NJ 08540
Phone 609-497-2100, Fax 609-924-8644