About NANBF Oklahoma


​VISION FOR NANBF OKLAHOMA: To build a natural bodybuilding community in Oklahoma that athletes feel they are proud to represent and that they have a place they can call home. We have a three-fold vision for NANBF Oklahoma.  
1) Change the mindset of what the people in our state think natural bodybuilding should be. We have all been a part of amazing shows as competitors, judges and support staff. We know what a well run show looks like. We will emulate that in Oklahoma.
2) Expansion. We started with one show, the Natural Cowboy Classic in 2019. It quickly became the best Natural bodybuilding competition in Oklahoma. Our team has grown to expand our reach with the addition of two amazing new promoters.
3) Create a bond within the natural bodybuilding community.  There are literally hundreds of people who have interest in competing. One thing about the culture of Oklahomans is that they want to be part of something that feels bigger than themselves.  They want to feel like they are part of a family.  We want to create a family environment and support system here in Oklahoma.


Meet Our Promoters

James and Umo Callins

NANBF Oklahoma Directors
Natural Cowboy Classic and Wild West Pro Promoters

Umo first got involved in natural bodybuilding in 2010.  She competed in her first NANBF show at the Kansas City Classic that same year.  After that show, she fell in love with the sport. After competing in a couple of shows, she earned her pro card at the St. Louis Gateway Classic in the fall of 2011. James introduction to natural bodybuilding came via Umo.  As an amazing supporter, he traveled with her to all her shows. Finally, in August 2012, James competed in his first competition at the Oklahoma City Classic. Less than a year later, he earned his pro card at the Natural Southern States Classic in April 2013.  In October of 2013 Umo competed in the Yorton Cup world championships for the first time and placed 3rd in her class. They journeyed to many natural shows across the country truly enjoying the sport and camaraderie. James and Umo have judged several shows and helped in various other ways at shows.  James and Umo both own 180 Physique Nutrition and Fitness/180Physique Athletics in Edmond, Oklahoma where they provide strength and conditioning coaching and sports nutrition to athletes from youth to collegiate and professional sports. James and Umo have served as contest prep and posing coaches for many years and have helped athletes earn their pro status. James and Umo are also NANBF and IPE judges and are so excited to lead the NANBF federation in Oklahoma, build the community as much as possible here and show everyone how amazing it is to compete drug-free.

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Mandy Harris

Native Naturals Promoter

My name is Mandy Harris. I am certified Personal Trainer and Nutrition Coach, Bodybuilding Prep Coach and Pre and Postnatal Fitness Specialist. I own Fierce Fitness in Lawton, OK, where I specialize in Women’s Health and Fitness. I started bodybuilding in 2013 and quickly fell in love with sport, competing in both figure and physique. While I love being an athlete, I love coaching so much more. Sharing my knowledge and love for natural bodybuilding with others has been a highlight in my career.Now, as a promoter, I hope to share that same love for natural bodybuilding with even more people.