OJA / CJA Certified Referee Course All Jiu Jitsu practioners are welcome!
Find out more »OJA / CJA Certified Referee Course All Jiu Jitsu practioners are welcome! To register, click on the link: https://events-mataleao.com/tournaments/2020_refcourse_bowmanville
Find out more »OJA / CJA Certified Referee Course All Jiu Jitsu practioners are welcome! To register, click on the link: https://events-mataleao.com/tournaments/2020_refcourse_stcatharines
Find out more »OJA / CJA Certified Referee Course All Jiu Jitsu practioners are welcome! To register, click on the link: https://events-mataleao.com/tournaments/2020_refcourse_ottawa
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