YOUR trainers

Pre-Post Natal Specialists and Group Fitness Instructors with hearts to help others.  We landed in the best role for that - motherhood.  We are passionate about helping women become the best versions of themselves.  We believe in order to become the best mother one can be, it must start with self!  Learn more about us below. 

Mackenzie FINK

Founder and Instructor of MRF

Hi!!  I'm Mackenzie. In 2012, soon after my first child, Eva, MommiesRfit was born. In 2013, my family and I packed up everything and moved to Montana to embrace the unknown and plant roots where our hearts wanted to be.  

I have dedicated my life to helping women, specifically mothers.  I am passionate about helping them find comfort in their own skin, build strength they never knew they had, and push new limits physically, mentally, and emotionally (because yeah-being a good mother ain't always easy).

I have been working in the Fitness industry since 2012 after receiving my AFPA Group Fitness Certification and Pre-Post Natal Fitness Specialist Certification.  I continue to evolve and take education courses within the industry but focus my studies on nutrition, pre-post natal, and functional fitness.  

  • Instagram - Black Circle

staci weichel

director and instructor of MRF

Hi! I’m Staci, mother of 2 amazing boys ! I was born and raised right here in Bozeman! I found stroller fitness classes after my oldest was born and fell in love the with community and the workout. MommiesRfit began in Bozeman about 8 weeks after my youngest was born and I began taking classes with Mackenzie. After just two months of taking classes with Mack I realized how much I loved the program and began my Group training certification process. 


After I received my AFPA certification, I began the official MommiesRFit certification process. Prior to motherhood, I was an elementary school teacher, so I found this to be a natural fit for me; teaching fellow mothers, but surrounded by all the incredible children! I have been teaching MommiesRfit now since 2014.

  • Instagram - Black Circle