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World class instruction taught by a 4-time Olympian.

Alliance St. Croix is owned and operated by 4-time Olympian, World Bronze Medalist and Alliance Jiujitsu Black Belt, Brian Olson. Sensei/Coach Brian is known for his leadership, humility, hard work and dedication to the learning and growth of his students. Our vision is to help our students to be best version of themselves both mentally and physically through martial arts. There is no greater reward than seeing a student smiling and having fun, while they grow and develop the abilities that will improve their lives

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Adult Jiu-Jitsu

Kickboxing

Muay Thai

Kids Martial Arts

Class Schedule

This is so EXCITING! Having so many ladies on the mats training is so inspiring and to match that we are now including our teens in our All Alliance Training and they works their butts off. I am so very proud of every one of them. They showed themselves what they are truly made of. Our next generation is bright ...

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An AMAZING START TO 2025. Our all Alliance training did not dissapoint. Over 90 people on the mats training to get better, meet our other Alliance Family members and get after it. This is one of the absolutely unbelievable things that make the Alliance family so special! ...

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TODAY IS THE DAY! All alliance training begins at 11:30am-1pm. Recovery meal at @proteinhousehudson mention Alliance training and get 15% off. ...

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YEAH BUDDY! Our teens are growing and getting after it. So many AMAZING students in the mats! ...

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Super excited to host our first all Alliance training of 2025. The mats will be absolutely packed and a lot of training, sweating and having fun. This will be our first event to where we are bringing in our teens as well. Training begins at 11:30 and finishes at 1pm. We have teamed up with @proteinhousehudson for everyone to grab the amazing recovery meal after. Let them know that you are a part of the Alliance training group and receive 15% discount!
See you in the mats!
...

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For our working parents! If you need to get some work done while your 🦅 are on the mats training, this station is for you. This is a new work area for our parents that need to finish those projects. WiFi will also be available for you. ...

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Man this warms our hearts. Our teen girls are FIERCE and getting after it. A true friend and Renate is one that makes sure that you are prepared. They are someone that you can go to war with and then be best of friends right after it! ...

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A truly AMAZING THING to see so many training to improve. So proud of these Eagles! ...

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An AWESOME Saturday training with these 🦅! ...

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A truly momentous occasion! Please help us welcome newest and FIRST female purple belt @tinawarrenrocks . Tina is an avid competitor with 2024 Europeans-silver, Pans-Gold. Worlds-Silver and she just competed at 2025 Europeans and took Silver in her division and Gold in the open. Her accolades are amazing but if you know her, the most amazing thing is how caring she is for everyone and the person that she is. We are truly humble to be able to present Tina with her purple belt! CONGRATS GAL! ...

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Please help us congratulate our newest Purple Belt Jeremy Lewis. Jeremy is such an amazing guys. Anytime a law enforcement officer commits to training like Jeremy has then the world is a much safer place. Jeremy is the epitome of perseverance and hard work. Congrats Jeremy super well earned ...

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A great group training at our intermediate class today at 12:15. Getting better one class at a time ...

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Massive Congrats to our European Masters 3 Blue belt super heavyweight Silver Medalist and Open GOLD MEDALIST @tinawarrenrocks . Tina fought fantastic this weekend and putting in an AMAZING PERFORMANCE. Let’s show her some love! GREAT JOB! ...

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CONGRATS TO @tinawarrenrocks for her AMAZING PERFORMANCE at the 2025 IBJJF European’s. Silver in her division( she made a small miscalculation) but then regrouped and came back with a vengeance and got redemption to the gal she lost to in the final and then went and dominated for a 🥇in the final. Congrats AMAZING JOB! ...

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PLEASE WELCOME OUR NEWEST BLUE BELTS, Charlie and Sam Welbourn. Every promotion is so special to us. The dedication and hard work that is takes to EARN these belts is something that is truly inspiring. This promotion has another inspiring caveat as Charlie and Sam are law enforcement officers with Hudson. The mindset of these brothers putting tremendous importance of training and the affect it has for them to do their job, stay safe and keep our community safe is more inspiring than words can express! CONGRATS GUYS WE ARE TRULY THANKFUL FOR YOU AND ALL OF OUR LAW ENFORCEMENT STUDENTS THAT ARE TRAINING ...

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Not only is Brian a world-class 4x Olympic athlete, he’s also a fantastic teacher. – Alex A