FOUNDER/HEAD INSTRUCTOR Joe Karstadt - 6th Degree Black Belt - World Champion - Member of The TaeKwonDo Hall of Fame
JSK TaeKwonDo has set its home in between the wonderful neighborhoods of Arcadia and The Biltmore! Our program specializes in children's classes ranging from ages 4yrs and up. Through positive reinforcement, our martial arts classes teach self confidence as well as the amazing respect, focus, and self control that you'd come to expect from a Martial Arts program. Come by for your first class and see why all of Phoenix seems to be raving about this program!!!
POV: When you’re bored of throwing double kicks so you throw this absolute 🔥🚀 of a triple kick instead!
08/02/2026
So incredibly PROUD of our TEAM JSK Members that traveled to Las Vegas this weekend to compete In the U.S. Open TaeKwonDo Championships.
This was our biggest team we’ve taken to a tournament and every single member of the team truly left their heart and soul out on the mats. Even with a few difficult matchups, they were all extremely courageous, respectful, poised, and humble.
We’re bringing home 43 MEDALS as a Team! 🥇🥈🥉
06/07/2026
More from the 2026 Holland Cup 🥋🇳🇱
If you want to be the best, surround yourself with the best. That could be your friends, your family, training partners, and even your Training Gear! You’ll always find TEAM JSK trusting with our uniforms and equipment! 🥋👊🏼❤️
And many of these great photos thanks to the wonderfully talented, and extremely generous 🙌🏼
06/05/2026
We’re more than a Team, we are FAMILY 🥋❤️
TEAM JSK at the 2026 Holland Cup 🇳🇱🥇🥉🥈
06/01/2026
2026 HOLLAND CUP 🇳🇱
What an amazing weekend for TEAM JSK! This year 8 competitors are bringing home 10 MEDALS from this High Calibre European Competition, and we couldn’t be more proud!
Mr. Joe - 3rd Place Patterns, 2nd Place Sparring
Mr. Josh - 2nd Place Patterns, 2nd Place Sparring
Max Karstadt - 1st Place Sparring
Eva Pacheco - 3rd Place Patterns, 2nd Place Sparring
Rab McNaught - 3rd Place Sparring
Sasha Howell - 3rd Place Sparring
Harper Howell - 2nd Place Sparring
Way to go TEAM JSK!
Thank you and for once again hosting a beautifully organized tournament for everyone.
More pics and vids to come 👊🏼
05/29/2026
Weigh-Ins complete! All TEAM JSK Members are ready for tomorrow! Now food, sleep, wake up ready to compete!
Let’s go TEAM JSK!!
05/29/2026
TEAM JSK is ready for the 2026 Holland Cup in Pijnaker, Netherlands!
Weigh-Ins tonight, Competition tomorrow!
Best of luck to this years Team!
Mr. Joe Karstadt
Mr. Josh Karstadt
Max Karstadt
Eva Pacheco
Rab McNaught
Sasha Howell
Harper Howell
Luke Johnson
🇺🇸 Go USA - Go JSK 🥋
05/15/2026
Beat the Summer Heat and get your kids off the video games so they can learn valuable life skills, keep fit & healthy, and hang with friends at the JSK TaeKwonDo Summer Camp!
2 Exciting Weeks to Choose From.
June 15-19
July 20-24
Register Today!
https://forms.gle/2QBJ2QXqHAT8y4oj9
Max Karstadt -
Patterns at the 2026 Hood River ITF Tournament
🥋🥇🥋
Mr. Joe Karstadt -
Sparring at the 2026 Hood River ITF Tournament
🥋🥇🥋
| Monday | 3:30pm - 8pm |
| Tuesday | 3:30pm - 8pm |
| Wednesday | 3:30pm - 8pm |
| Thursday | 3:30pm - 8pm |
| Saturday | 9am - 2pm |
