1049 Market St #105 • San Francisco
(415) 690-7196

Everchange Fitness

Get Out Of Your Head. Get Into Your Body.

Personal and Small Group Training.


Join us in 2018 for our Clean & Lean 6 Week Jumpstart and make it your healthiest year yet! Click the button below for more information.

2018 Clean & Lean Challenge

Thank you for your support! December 23, 2017 was our holiday charity workout, benefitting the SF-Marin Food Bank. We raised $80 and a total of 6 volunteer hours. The beginning of an annual tradition!

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Everchange Fitness

When exercise causes more stress than it relieves and eating right seems impossible, it’s crucial to have a community that supports you in accomplishing your goals.

At Everchange Fitness, our mission is to help you lose weight, get stronger, and become more toned in an environment that encourages and challenges you. You won’t find any drill sergeants here, but you will be pushed to expand your limits continually.

Workouts are designed to help you strengthen your full core, improve balance and coordination, and increase your active flexibility through getting your whole body moving. We provide personal and small group training.

Request your free consultation today to learn how our proven nutrition and exercise programs will work for you!

Request Consultation

Our Team

At Everchange Fitness, Jeri is committed to making sure you feel your healthiest on or off the training floor.

Jeri Jirsa

Studio Owner / Trainer

I’m Jeri Jirsa. I’m 5’3″ and used to weigh almost 200 lbs. I now weigh 130 and am stronger, healthier and more fit than ever! Now it’s my passion to help you feel awesome in your body!I’m Jeri Jirsa. I’m 5’3″ and used to weigh almost 200 lbs. I now weigh 130 and am stronger, healthier and more fit than ever! Now it’s my passion to help you feel awesome in your body!

More Than A Workout

The Everchange community is also about food and fun!

Training Services

Everchange Fitness offers by-appointment personal and small group training, as well as live online workouts. If you’d like to request a midday time not listed, please contact Jeri privately.

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Get Training Today!

If you are looking for one-on-one focus, personal training is for you. Receive fully personalized workouts and coaching program to help you feel great with your fitness goals.


If you’re looking to increase your fitness with a community that gets it and hit your waistline instead of your wallet, try small group training! Train with up to 4 people per session.


Sometimes, coming into the studio isn’t possible. We offer live, online workouts. Set an appointment via Skype, Google Hangout, or Face Time and don’t worry about missing out on gym time.


From nutrition to workouts, stretches and mindfulness reminders, studio members are able to receive daily habit reminders individually designed to promote a healthy lifestyle.

Join us! It will only take a minute

Latest News

Read about Fitness, Nutrition, and some of the obstacles that can keep us from living healthy!

Thank You for a Successful Studio Grand Opening!

The studio party was a huge success, and it was thanks to a number of community partner and guests who made it such a special time. I found myself running[…]

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How To Get Everything Right When Exercising

“There is just so much to think of, I can’t keep it all straight!” Knowing I’m demanding when it comes to form, my clients lament how challenging it is to[…]

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My Challenge To Find Satisfaction In Movement

I hit the point where it was easier to motivate my clients than myself. I was aimless, looking for something to latch onto. While I still looked lean, the muscle[…]

Read more

Client Testimonials

Don’t take our word for it – here’s what our clients say:

Everchange Fitness is changing my world!!! I am sore today in all the right places, all my abs, my legs, my butt, my back… yeah! My muffin top is now almost non existent and even my BACON BELLY is dwindling. Not sure where I will store all my naughty bits but I don’t care! I feel amazing and am seeing muscle tone and feeling very strong and happy. Thank you thank you thank you!!! HIGHLY RECOMMENDED!

Monica F.

I have been training with Jeri for years, and most recently–for over a year–at Everchange Fitness. And–the weekend warrior that I am (but actually it’s midweek soccer)–she has helped me to put my body back together and enabled me to keep playing the sport that I love even though I am now “more mature”. She is truly concerned about your individual goals and seeing what’s going on with you that day in order to get the best results–both short-term and long-term.

Kelly H.

Jeri is a wonderful trainer and a great person. She knows her stuff and cares a whole lot about her clients and her craft. She takes time to find out what works for me and helps me listen to my body. And the results have been terrific! I feel and look so much better, not just my goal of losing weight, but also by improved posture and confidence. Working with Jeri was a GREAT decision!

Max Z.
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