J King Performance
J King Performance

J King Performance

$150
Estimated price


Training location

Responds in about 2 hours


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Introduction
Want to learn to defend yourself? Trying to shift a few pounds and/or become bigger, stronger, faster, more healthy? I can help you get the results you’re looking for. Now sitting at 6ft5 and 225lbs I’ve been the skinniest guy in the room, the chunky guy and the least equipped to defend himself at different times in my life. At 34 years old I now have 9 fights under my belt, over 10 years of experience in Muay Thai, Strength & Conditioning and Fitness. I design tailor-made plans for each individual geared towards multiple goals: Traditional Muay Thai, boxing and self-defense Weightloss and muscle gain Strength and fitness I then coach you through the process of attaining your dream body, fighting ability, confidence levels. We take our time with this focusing on one habit at a time making your success feel effortless **NASM Certified Personal Trainer** **9-0. National, State, World Classic Champion** NOW OFFERING CLASSES - ASK FOR DETAILS
Overview

Hired 27 times

Serves San Francisco, CA

Background checked

1 employee

10 years in business

Business hours

This pro hasn't listed their business hours.

Payment methods

This pro accepts payments via Apple Pay, Cash, Venmo, and Zelle.

Social media

Instagram

Projects and media

37 photos

Projects and media

37 photos

Specialties
Fitness goals

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Event to prep for

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Medical concerns

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Reviews

Customers rated this pro highly for work quality, professionalism, and value.

Exceptional 5.0

49 reviews

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pro avatar
Amanda S.
Apr 6, 2025
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Hired on Thumbtack

Hired on Thumbtack

Training with Coach Jack for the past three months has truly changed my life. He creates such a safe, supportive environment that makes you feel empowered every step of the way. I’m so grateful to be learning from someone who brings so much heart to the job. I’m also now attending the class he teaches, Coach Jack’s class has been a great opportunity to join a community and learn alongside with others. His patience and encouragement with the class is genuine motivating.
Private Self Defense Lessons
pro avatar
Carley P.
Feb 5, 2025
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Hired on Thumbtack

Hired on Thumbtack

I’ve been training with Jack for a few months, and I can honestly say it’s been an incredible experience. Each session is not only fun but also packed with useful, hands-on knowledge. Whether you're a beginner or more advanced, Jack tailors each class to meet your needs, always ensuring you’re learning something new. His expertise in Muay Thai is evident in every technique he teaches, and he’s a fantastic communicator. He breaks things down in a way that makes even the most complex movements feel accessible. Beyond just the technical side, his passion for the sport is contagious, and it keeps me motivated to push myself every class. Every class leaves me feeling stronger, more confident, and excited to continue learning. If you’re looking for a trainer who combines expertise, patience, and a genuine love for Muay Thai, I highly recommend Jack.
Private Self Defense Lessons
pro avatar
Hazar Y.
Jan 5, 2025
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Hired on Thumbtack

Hired on Thumbtack

Training with Coach Jack has been an incredible experience! His ability to explain techniques clearly and tailor his coaching to my skill level has helped me improve so much. He’s supportive, motivating, and always pushes me to do my best. Every session is challenging, but I leave feeling stronger and more confident. If you’re serious about Muay Thai, I can’t recommend Jack enough!
Private Self Defense Lessons
pro avatar
Yesenia S.
Mar 28, 2025
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Hired on Thumbtack

Hired on Thumbtack

Jack and his lovely crew(Wen and Roman) came to our Highschool and ran a 2 week Muay Thai boot camp for me(a teacher) and a few students. We are all walking away from the experience thankful, skilled, and empowered. I personally doubted my ability at the start of this boot camp due to my experience of sloppy footwork when it came to dancing. Jack was able to listen to my mental block, acknowledge it and work through it with me. I can confidentially say I feel proud of my footwork and I realize that I indeed can do the moves despite my imagined fears. I can demonstrate Muay Thai moves to my family and students now after this experience. My confidence is generally higher now, and I have a newfound interest for watching fights in the ring. I have developed a love for Muay Thai that I didn’t think was possible until Jack agreed to run this boot camp for our school. I can also say Jack is excellent with youth, kind and also fun! Forever grateful.
Private Self Defense Lessons
pro avatar
Peter C.
Dec 15, 2023
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Hired on Thumbtack

Hired on Thumbtack

My son, Roman, and I have trained with Jack for almost 2 years. In that time Jack coached Roman from an absolute beginner to his first points muay thai match. Jack not only taught Roman muay thai, but planned his strength training, conditioning, diet and worked with him on fight strategy and mental preparation. The result was that Roman was able to beat an opponent with four times more experience. More importantly Roman came out of the experience more fit, healthy, and confident. The experience was so positive that Jack is now training one of my daughters. I can't recommend Jack highly enough.
J King Performance's reply
Thanks Peter. Love working with you guys! Looking forward to more W’s with you all
Private Self Defense Lessons
Credentials
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Jack Kerr