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About Pilates

German born, Joseph Pilates emigrated to the United States in 1926.  He set up shop in New York City, teaching his method of physical fitness, that he coined "Contrology" based on the principles of Breath, Concentration, Centering, Control, Precision and Flow as well as elongation, oppositional forces, uniformity, balance and strengthening.  He quickly became the guru of rehabilitation to dancers, and a fitness authority to celebrities and the general public alike.


Spheeris Pilates is proud to continue Joseph's work in primarily what is known as the original classical repertoire.  Joe's method has proven to be effective, safe and viable throughout over 90 years of practice by certified and trained professionals all over the world.

"Above all, learn to breathe correctly" - Joseph Pilates




About Us

Our studio is based on the belief that our clients' needs are of the utmost importance.  Our exuberant staff of fully certified trainers is committed to meeting those needs. As a result, a high percentage of our business is from repeat customers and referrals from Doctors, PT's, & Chiropractors. Studio owner, Jackie Stoffelis the pioneer Pilates trainer in Sum​mit county, Colorado, introducing Pilates here in 1997.  Spheeris Pilates & Wellness is the culmination of many years of study in various movement modalities.



Tracy has lived and worked in Summit County for over 35 years. Her primary Pilates certification is from Polestar Education, a 2003 graduate. Tracy is also certified in GYROTONIC™and

trained in GYROKINESIS..

Tracy has over 25 years of fitness and personal training credits. Her dedication and passion for her work at Spheeris is paramount. Tracy teaches group classes Tuesdays and Saturdays as well as Privates and Semi-privates by appointment.


I believe the body can heal itself given the right tools, Movement is a gift of healing for body, mind and spirit!"

Jackie has lived in the area for over 30 years.

Jackie's primary Pilates certification obtained in 1998, is from

The Pilates Center in Boulder, Colorado

Jackie's credentials also include:

- An extensive background in dance performance arts with a BS from CU in Boulder Colorado

- Master of Education from C.S.U. in Fort Collins, Colorado 

- GYROTONIC™ Expansion System Certification - 2006

- Certified Independent BEMER distributor - 2016

-IIN Certified Health & Nutrition Coach - 2018

- Certified AMEN Brain Health Coach - 2024

- Functional Movement Training ~ REIKI II certification

- GYROKINESIS™ training~ Healing Touch and Healing Touch For Animals IV~ The study of Herbal medicine and Therapeutic essential oils.

Jackie teaches group classes as well as privates and semi-privates by appointment


Marjorie is an '09 graduate of

The Pilates Center in Boulder Colorado. She teaches classes at 9 AM on Wednesdays and Fridays. Also 4:30 on Tuesdays & Thursdays.  She is available for privates by appointment.

Marjorie is also​ a Feldenkrais practitioner and holds A.T.M. (awareness through movement) classes on Sundays at 1pm  She's a  Reiki Master and is level V yoga certified. Please call for appointments

Noriko Tani studio shot_edited.jpg


I came to Summit County from Hanover, NH.  I've been teaching Pilates, Skiing, Aquatics, and Spinning since 2013.  I'm also a Physical Therapist Assistant since July 2020.

I started practicing Pilates from an article in a newsletter around 2000.  There were 10 or so exercises and I did it as a warm-up before my workout.  A year or so later, I realized that I had not felt any back pain that had bothered me occasionally since 1988.  So, I kept doing them as it felt good.  Later, I met a Pilates instructor, kept learning more and more, and became an instructor.

Pilates education and certification: STOTT Pilates Level 1 certified instructor for Mat, Reformer, CCB(Cadillac, Chair, and Barrels), Merrithew™ Fascial Movement, and ZENGA®.Taught at River Valley Club in Lebanon, NH and Woodstock Athletics Club in Woodstock, Vermont.

Noriko is currently available for privates and semi-privates by appointment



Lilliian is a native to the Midwest and has been teaching dance and movement for over 14years.  Since 2013, she has held a B.F.A. in Dance from Belhaven University and specializes in Ballet, Modern Dance, Contemporary Ballet and Improv.  Since 2018, Lillian has been a certified GYROTONIC & GYROKINESIS Trainer.  Her focus is keeping functional and attainale holistic health and wellness goals at the forefront of her lessons.  Lillian is available for private and duet GYROTONIC sessions by appointment only.  She holds Group GYROKINESIS classes on Mondays and Thursdays at Noon. The group GYROKINESIS classes are open to any experience level.  

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