TEAM

William N Case II, Co-Owner

Coach Bill is co-owner of Five Mountain Fitness and the founder the fitness class CHISEL BY BILL® offered at Five Mountain Fitness six days a week.  Bill’s passion for growth and empowerment extends well beyond the physical walls of the gym, choosing to spend time empowering his clients and teaching them about mental fitness and strength in addition to physicality.  Approaching fitness with an authentic holistic approach, Bill takes into account all aspects, from emotional, to physical, to nutritional. Bill brings decades of experience and a wealth of knowledge to the gym.  “Establishing a sense of relatability and trust is so important” Bill shares, “I enjoy creating personalized tailored plans for those seeking to improve their quality of life.

NESTA Certified Personal Fitness Trainer

ISSA Certified Personal Trainer

ISSA Certified Fitness Trainer

Precision Nutrition Certified Level 1

IIN Institute of Nutrition Health Coach

Susan Case, Co-Owner

Susan began her journey with Five Mountain Fitness 14 years ago after moving to Waimea to be closer to family.  After an ankle injury sidelined her, she started to look for ways to improve her strength and stability.  It is then that she began working with her now-husband Bill who introduced her to Powerlifting.  “It is through the work with Bill that I found a new sense of self.  For the first time in my life I started to feel strong and began to look for ways in which I could share my passion for fitness.”  A three-time WABDL world record holder in powerlifting, Susan says, “My greatest joy comes from empowering people, especially women and teens, and seeing them do things they never thought they could do.”

Betsy Tranquilli

Betsy is a Physical Education/Health and Wellness teacher and athletic coach at Hawai'i Preparatory Academy. She holds a Master's in Kinesiology from Fresno Pacific University. Her passion for education and coaching drew her to expand her instruction to the adult fitness world.  She is the first and only Spinning®️ Master Instructor in the State of Hawaii.  Betsy loves training and motivating, but more importantly, she loves teaching the science and methodology of body movement and exercise. Her goal is to help people improve their body awareness so that their workout experience can be as effective, efficient and fun as possible. 

Spinning® Master Instructor

ACE Group Fitness Certification

ACE Youth Fitness Specialty Certification

200-RYT Yoga Certification

TRX Suspension Training®

BarreAbove® Certified

Mahea Hiraoka

Meet Mahea, she is the friendly face you see most days at Five Mountain Fitness, and she is a valued member of the Five Mountain Fitness family.  Born and raised in Honoka’a and an avid Powerlifter, Mahea will always find the time to walk you through the ins and outs of the gym and answer any questions you may have!

Riley King

Hi, I’m Riley, a lover of peanut butter, old school hip hop, a big time lover of dogs, and helping people live their best lives. A lifestyle coach who pours his heart and soul into helping you achieving actual results by making fitness fun and easy to digest. I’ve helped 100’s of people move better, feel better, and overcome “Everest” sized obstacles and I’d be honored to help coach you to your destination.

NASM Certified Personal Trainer

Marilyn Fitzgerald

Marilyn Fitzgerald has had a lifelong passion for fitness, health, and dance. She has over 23 years of experience teaching group fitness.  Marilyn welcomes all ages and all levels of fitness in her classes!

Zumba® Certified

BarreAbove® Certified

Tori Schneider

Tori has been an instructor at Five Mountain Fitness for over a decade teaching Spin® and Group Fitness Classes. Tori has a passion for Spinning® and fitness that she passes on to her students, making her classes exciting and fun. Her enthusiasm is contagious!

Spinning® Instructor

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