Diamondback Jiu-Jitsu opened a new academy Aug. 24 at 8981 Second St., Ste. 200 in Frisco, Head Instructor Matt Jones said in an email. Diamondback offers jiujitsu classes for different age groups ranging from ages 5-13 and adults, according to its website. When kids reach 14 years old, they train with adults, Jones said. Jones has trained in jiujitsu since 2004 and has taught full time in Texas since 2015. 214-407-8641. www.diamondbackbjj.com

Editor's note: The article has been updated to reflect a new phone number provided by Diamondback Jiu-Jitsu.