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.


Do you work near Everchange Fitness? Do you want to learn more about fitness, nutrition, and exercise, but can’t make it into the gym? If so, join Jeri every other Thursday at Covo for lunch! Check the schedule to see when the next one will be.


Join us on February 11 for a six-mile round-trip hike through Golden Gate Park from the Conservatory of Flowers to Ocean Beach! Click the button below for more information.

Friends & Family Hike

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!

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.

RhinoFit - Fitness Business Software
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!

Exercise for Physical, Mental and Social Health

This week’s theme has been more about the mental side of getting physical than wearing oneself down to exhaustion. It seems like life is providing more than enough of that[…] Read more

Engage in What You Love

Good morning! I wanted to start today off by making sure everyone knows: Y’all are invited! The Everchange Family will be hosting a Friends and Family Hike in Golden Gate[…]

Read more

My Schedule Definitely Doesn’t Look Like Yours

Have you ever felt like “prescribed” fitness plans are designed to help you fail? While you can logically appreciate what they’re teaching, it doesn’t quite work with your own schedule. In my case,[…]

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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