Jerome Jansen, Founder of JJ's Boxing & Wrestling
Fighting for Fitness!
"I want to use my strengths and abilities to help others achieve health and fitness. My main focus will be building a youth wrestling program, youth and adult boxing classes, small group classes, and one-on-one training. My goal is to instill self-esteem, confidence, strength, pride, and a sense of self-worth in all people that come through the doors."
Build Strength, Confidence, and Community in Sun Prairie

Work Hard Without the Ego
A Gym Where You Actually Belong
At JJ's Boxing & Wrestling, we know combat sports are about way more than just physical power. It’s about building self-esteem and finding your own worth. We’ve created a space where you can let off steam and master boxing or wrestling without feeling intimidated. In our fitness-focused classes, you get to do all the hitting, and no one is hitting you back.

Character Built on the Mat
A Note from Coach Jerome Jansen
I started JJ’s to give people the confidence and strength I know these sports can provide. Between 15 years in the ring and a decade coaching at Sun Prairie High School, I’ve watched boxing and wrestling transform lives firsthand. I love seeing my students succeed on the mat, but I’m even more proud of the character they build outside the gym. We make every minute of training count so you grow as both an athlete and an individual.

Real Experience, Real Results
Learn from Coaches Who’ve Been There
Our coaching team comes from a background of real competition and discipline. We have Golden Gloves fighters, college-level wrestlers, and military veterans with pro MMA experience leading the way. Whether your kids are joining our USA Wrestling youth club or you’re pushing through our high-intensity adult classes, you’re training with experts who prioritize safety, technique, and real results.
Get 50% off your first drop-in class
Class Prices & Memberships
Wraps - $10.00 per pair | Glove Rental Is Also Available
$90-150/mo
MONTHLY MEMBERSHIP
$90 Membership =
2 group boxing classes per week
$120 Membership =
3 group boxing classes per week
$150 Membership =
unlimited group boxing classes
$15/class
DROP-IN CLASSES
$15 for each group boxing class
$15 for each Youth Boxing session
$20 for each wrestling class
$50-100/session
PRIVATE SESSION
$50 for 30 minutes
$100 for 60 minutes
$250/party
PARTIES
Includes trainer-led games/exercises
Bring your own food/beverages/cake
Our Services
Discover a variety of ways to challenge yourself and reach your full potential

Boxing Training
Step into the ring at JJ's Boxing & Wrestling to develop power, agility, and mental toughness through expert-led circuit classes and personalized training. Whether you are a beginner learning the fundamentals or an experienced athlete refining your technique, our inclusive environment helps you achieve your fitness goals and build lasting confidence.

Wrestling Programs
Experience premier wrestling training led by expert coaches who specialize in takedowns, escapes, and powerful maneuvers for all skill levels. From youth club teams to advanced high school and college sessions, our programs are designed to build self-esteem, confidence, and peak physical conditioning in a supportive environment.

Sports Training
Our expert-led boxing and wrestling programs are designed to enhance strength, endurance, and agility for athletes of all ages and skill levels. Through a mix of high-intensity circuit training and personalized private lessons, we provide a supportive environment to help you master technical skills and achieve your fitness aspirations.

Private Fitness Lessons
Experience individual attention and customized instruction designed to increase your fitness level and master specific skills. Whether you are preparing for a competition or seeking a more intensive workout, our flexible booking options allow you to schedule sessions that fit your lifestyle.

Adult Group Fitness
Our adult group fitness classes combine the fundamentals of boxing and wrestling with high-intensity conditioning to help you build functional strength and endurance. Led by expert coaches, these sessions provide a supportive community environment where you can challenge yourself and reach your peak physical potential.
Explore Our Site
Unleash your potential with our expert-led boxing, wrestling, and group fitness classes

Find Your Strength and Build Confidence on the Mat
Boxing and Wrestling Training That Builds Confidence
JJ’s Boxing & Wrestling is more than a gym. Our classes help you build strength, confidence, and discipline in a supportive community. Whether you're trying your first class or training seriously, you'll leave every session stronger than when you walked in.
Our Location
Our Location







