Looking for Best Martial Arts Academy in Sioux Falls SD Thanks for checking out Next Edge Academy located at 39th and Phillips inside the X-Fitness building. If you are interested in Mixed Martial Arts Muay Thai or Brazilian Jiu-Jitsu well this is the gym for you. All our coaches have been teaching their art for at least eight years and we are proud to say that when it comes to Brazilian Jiu-Jitsu Mixed Martial Arts and Muay Thai no one in the area has more experience. In fact you would have to drive to Omaha or Minneapolis to get the same level of experience we offer. That is why we also give you two weeks free to come in and try our classes and compare them to our competitors we want to prove that we are your best choice in Sioux Falls.