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Welcome to Prescribed Fitness

The fitness community you've been looking for

Prescribed Fitness offers cross training focused on functional movements in a motivating group setting where becoming part of our community will get you results that you never imagined were possible.

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Summer Boot Camps 
Starting June 7th!

Registration Now Open!

8 weeks long, 2 days per week

3 Options:

1) Ages 55+ ONLY: M/W 8:30-9:30 AM

2) M/W 6:30-7:30 AM

3) T/TH 8:30-9:30 AM-FULL

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Boot Camp


Spend your summer working on your fitness in a fun, motivating group setting.  You can expect a new workout each day that you will do as a group but at your own pace with your own modifications.  You can expect to improve both your cardiovascular and strength endurance by doing all the things we do in our regular classes excluding the barbell.  Expect to get outside for part of your workout or warmup if you so choose on nice days!


Kids Classes 
(Ages 5-10)

For kids ages 5-10, our program develops physical abilities, social skills and self-confidence. The program can prepare kids for sports, making them fitter and more coordinated, or provide an alternative for kids who are not interested in competitive sports or traditional team sports. It’s also great for developing good motor patterns, balance, and a positive attitude toward challenges. At the very least, we keep things fun and the kids moving.

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Youth Excel Fitness Classes

(Ages 11-18)

Starting 6/7, every M/W/F  9:30-10:30 AM OR T/Th 11-12 AM 
Last Class (Fri 8/20)

Our Youth Excel Fitness class is a strength and conditioning program designed for both athletes and non-athletes ranging from ages 11-18. The program combines age-appropriate weightlifting and gymnastics with high intensity training to deliver optimal fitness and performance, as well as to establish a lifetime love of fitness. Proper weightlifting techniques are taught to enhance strength and power under the watchful eye of our coaches. We also focus on basic gymnastics to increase agility, mobility and flexibility.

Our program will increase physical competence in 10 fitness domains: Cardiovascular and Respiratory Endurance, Stamina, Strength, Flexibility, Power, Speed, Coordination, Agility, Balance, and Accuracy.


As a member of our community you will experience more than just a good sweat

Elliptical Machine

Professional Programming with access to a platform so you can track your workouts

Social Support-our community will encourage you along the way

Fitness Group
Intense Workout

Structured and Safe Environment

Nutritional Support

Organic Vegetables
Intense Training

One on One Coaching


What does a class look like?

Fitness Class

Warm Up

At the beginning of each class you can expect a group warm up that targets specific areas to help prevent injury and prepare for the daily workout.

Lifting Weights


A short exercise or focused lift dedicated to correct form and buiding strength.

Crossfit Exercise

Work Out of the Day (WOD)

Our WOD is different every day. It is a higher intensity workout with varying movements, times, rep schemes.  This is where you will push yourself to grow. Our coaches will assist to ensure proper form and weight. This can vary and be adjusted based on skill and experience.  It is a motivating individual effort with an encouraging group.

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It's Your Time

to live a strong and healthy life surrounded by people who care

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Class Options

Come Visit

(All classes are 1 hour except Noon Express class)

  • Mon & Wednesdays: 5:30 AM, Noon Express (12:10-12:50), 4:15 PM, 5:30 PM 

  • Tuesdays/Thursdays: 5:30 AM, Noon Express (12:10-12:50), 4:15 PM

  • Friday: 5:30 AM, Noon Express (12:10-12:50), 4:15 PM

  • Sat: 9 AM

  • Boot Camp Starting week of 6/7 M-TH 8:30 AM, M/W 6:30 AM (must sign up separately)-for boot camp members only

  • Youth Fitness Classes-starting 6/7

    • Kids (ages 5-11) T/TH 10-11AM​

    • Ages 12-18 MWF 9:30AM

    • Ages 12-18 T/TH 11 AM



Don't be!  We make it our priority to make all fitness levels and ages feel comfortable.   Too help beginners we encourage taking our Bar Basics class.

Bar Basics

Bar Basics is a intro class that is meant for beginners who need to learn proper form and terminology and just get comfortable with our equipment

Next Class: Saturday April 17th 10:15 AM - 11:15 AM with Coach Josh


Become A Member

All options include tax and have no contracts or sign up fees


Monthly Singles

Individual Membership 
(ages 16+)


Monthly Couples

Join with your partner for a discounted rate!


Monthly Family

Join with your whole family! Up to 6 people.  Immediate family members only.


Veterans, Firefighters, Police Officers and Paramedic Discounted Rate (10% off)

We appreciate your service!  Join for a discounted rate.


Student Discount

Show us your student ID for a major discount!


10 Class Punch Pass

Not sure how often you will be able to join us each month?  Consider a punch pass and come when you can! Expires one year from purchase.


Drop In

Coming from out of town or not ready to commit more than a class at a time?  Drop in for 15 dollars!


Monthly Seniors

Ages 55+


2 Weeks

Need to make sure this is the right place for you?  Come try us out 2 weeks for free!

50% off one month

Referral Program

If you refer a new member to our gym who stays 3 consecutive months, get 50% off one month of membership.  ($50 dollar value!!)


Boot Camp

Starting June 8th, every Tues/TH at 8:30 AM x 8 weeks

Sign up with a friend for 25% off!

Email PrescribedFitnessSD@gmail.com who you are signing up with. 

134.99 for 3 months, 2 days per week

Youth Excel

Starting 6/8, every T/Th  11-12 AM.  
Last Class (Th 8/19)


Boot Camp M/W 8:30 AM (Ages 55+)

 Think of this class as having a personal trainer while working out together in a group.  You will enjoy the motivation and community that the group brings all while being able to individualize a workout that is right for you.

Sign up with a friend for 25% off!

Email PrescribedFitnessSD@gmail.com who you are signing up with. 


Boot Camp M/W 6:30 AM

Beginning June 7th x 8 weeks

Sign up with a friend for 25% off!

Email PrescribedFitnessSD@gmail.com who you are signing up with. 

$210.20 for 3 months, 3 days per week

Youth Excel

Every T/Th 11-12 AM. Starts June 8th

$134.99 for 3 months, 2 days per week

Kids Class (ages 5-11). T/Th 10-11AM

Begins June 8th


Our Coaches


Jessie Nielsen

Jessie is a Massage Therapist and has a degree in Exercise Science. She is also Level-1 Certified in CrossFit.

Jessie is from Brookings, SD and is a mom of three boys. She started CrossFit in 2014 and instantly fell in love. She has enjoyed the community CrossFit builds as well as doing team competitions. Jessie has been teaching some sort of fitness class for over 12 years. She has a passion for health and fitness and is ready to help you meet your fitness goals!

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Josh Hansen

Josh grew up in Southeast MN and started CrossFit in 2016 at New Ulm CrossFit.  From there his love for working out grew and has brought him here.  He enjoys competing in CrossFit in all forms; individually or on a team because who doesn't love to work out with other people!  He is Level 1 CrossFit certified.  When Josh is not working out, he tries his best to play golf.


Kari Fleming

Kari Fleming has been active in the CrossFit community since 2013, when she first starting attending classes. She obtained her CrossFit Level 1 Certification in 2015 and has competed in various CrossFit competitions.

“My favorite part of CrossFit is the challenge each workout brings and the variety of movements that make me a better athlete.”

Kari is a certified Physician Assistant at Prairie Lakes Healthcare Systems and is passionate about sharing the importance of exercise with her patients.

Kari, her husband Ben, and 2 children, Cooper and Merritt, live outside of Watertown and enjoy spending time outdoors and living an active lifestyle.


Alison Gerrish

Physician Assistant and gym owner who knows what it is like to be intimidated to join a new gym.  It took her husband over a year to convince her to walk in the door at her first CrossFit gym in 2018 and now she's hooked.  Alison is a member of the American College of Lifestyle Medicine and is passionate about using lifestyle medicine to optimize overall health.  She is certified in whole foods plant based nutrition, is a Certified Lifestyle Medicine Professional and is available as a health coach to her members. Alison is a mom to 3 young children.


Jackie Burghardt

Jackie is a Watertown, SD native who is married and has three adult children.  She has always enjoyed working out, but didn't start running more seriously until she was in her 40’s and then later found CrossFit in 2013.  She was hooked after the first class, and faithfully attended 5-6 days a week.  What she loves most about the CrossFit style workouts is how they can be adapted to all fitness levels.  She has competed in partner competitions and also the Masters 50+ division at the Dakota Games.  Jackie received her CrossFit Level 1 certification in 2018 and looks forward to meeting new people and helping them achieve their fitness goals.


Kim Diedrich

Kim will be one of the coaches for our 2021 Spring Boot Camp, coaching every Tuesday evening at 5:30 PM.

Kim grew up in Watertown and became interested in fitness after she graduated high school. She tried many different types of workouts but absolutely fell in love when she was introduced to kettlebells. Kim became StrongFirst Certified in 2016 and has been doing group and one on one coaching ever since. She is versed in functional movement screening and is very passionate about educating clients to use strength and mobility training as an investment into their health. She is married and has two children and two dogs.


Emily Roby Doblar

Emily Roby Doblar graduated from the National Personal Training Institute in Phoenix, AZ in 2005 and has been certified in personal training and nutrition ever since.

She looks forward to supporting and encouraging you to achieve your goals by making fitness FUN!

Her passion is to help people change their lives by showing how including workouts in your lifestyle can help not only physical health, but mental as well. Emily believes fitness makes people feel good about themselves inside and out. She finds motivation in group coaching because of the atmosphere and comradely it brings.

Besides fitness, her other passion is teaching Technology and Preschool Enrichment. Emily loves watching her students learn, grow and succeed.

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About Us

Dr. Greg Gerrish and his wife Alison, a Certified Physician Assistant, started Prescribed Fitness as a service to their community to help them achieve optimal health in a way that cannot be done in the hospital or clinic.

Exercise is one of the 6 pillars of health along with healthy eating, adequate sleep, social connections, avoiding risky substances and stress reduction. At Prescribed Fitness you will not just achieve an amazing work out that will help you manage your stress and sleep, you will also get to experience a supportive community of people that is unlike any other.

Join us for a free trial today!


Get In Touch

206 9th Ave SE
Watertown, SD 57201


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