Let's get stronger inside and out.
Newport Beach Personal Trainer for Women Serving OC & Online Nationwide
Master Trainer | Nutritionist | Health & Transformation Coach | Speaker | Writer
Years Experience
Transformations
Meet Jennifer Winestorfer
Jennifer Winestorfer, founder of JenCalling, is a former Ironman World Championship triathlete and NPC Masters fitness competitor turned ISSA Master Trainer. She helps ambitious women transform their relationship with fitness, nutrition, and their bodies, because strength isn’t just physical.
Certified Trainer
ISSA Master Trainer
Nutritionist
Holistic Approach
Transformation Coach
Mind + Body
Transform Your Life
Personalized coaching services designed to meet you where you are and take you where you want to be.
Serving Newport Beach · Costa Mesa · Corona del Mar · Irvine · Huntington Beach · Laguna Beach · Tustin
Virtual coaching available nationwide across the United States.
Strength Training
Progressive strength training designed for women 35 to 65 to build lean muscle, improve bone density, and feel powerful in your body again.
Weight Loss
Cardio
Cardio fitness is programmed intentionally to support heart health, fat metabolism, and stress regulation.
PNF Assisted Stretching
PNF Assisted Stretching restores mobility and reduces chronic tension for inactive individuals, recreational exercisers, and competitive athletes alike.
Sports Conditioning
Performance based training for amateur through professional athletes seeking longevity and intelligent progression.
Senior Fitness Training
Senior fitness focuses on maintaining independence, balance, and confidence in daily movement.
Corporate Wellness
Employee wellness directly impacts productivity, focus, energy, and long-term performance.
Active Aging Fitness & Wellness Programs
Today’s retirement communities are home to individuals who want to stay active, independent, and engaged in their daily lives.
Nutrition Coaching
Nutrition coaching can feel confusing, overwhelming, and restrictive, especially with so much conflicting information.
Serving women in Newport Beach, Costa Mesa, Corona del Mar, Irvine, Huntington Beach, Laguna Beach, Tustin, Aliso Viejo, Laguna Niguel, Laguna Hills, and Laguna Woods.
Remove the Guesswork & Stay Accountable
with a Coach Who Cares
Discover
We start with a comprehensive assessment of your goals, lifestyle, and current fitness level.
Plan
Receive your personalized workout and nutrition plan designed specifically for your success.
Accountability
Stay on track with regular check ins, adjustments, and unwavering support.
What's Included:
- Personalized workout plans
- Custom nutrition guidance
- Weekly progress check ins
- Ongoing support through the app
- Exercise video library
Real Results, Real Stories
See what my clients are saying about their transformations
I would do it all over again if I could!!
Thank you Jennifer for an awesome memory, so appreciated everything you did and still do,
Sincerely Christina
Jen took the time to understand where I was starting, what I wanted to improve, and what would work best for me. She’s extremely knowledgeable, pays close attention to form, and explains what we’re doing and why instead of just putting me through a workout.
I’m really glad my wife introduced me to her. If you’re looking for a trainer who knows her stuff, genuinely cares about her clients, and makes you feel comfortable from the start, I highly recommend Jen.
Frequently Asked Questions
Who does Jennifer Winestorfer train?
Women aged 35 to 65 who want to build strength, lose fat and stay independent as they age, including women in perimenopause and menopause. She also coaches women in their 60s and beyond, women training for triathlons and other endurance events, and runs corporate wellness programs for Orange County employers.
Where does training take place?
At the JenCalling studio at 120 Newport Center Drive #7002, Newport Beach, or the Irvine studio at 17821 Skypark Circle Suite J; in your home in Newport Beach, Corona del Mar, Costa Mesa, Huntington Beach, Irvine, Laguna Beach, Laguna Hills, Laguna Niguel, Laguna Woods, Tustin or Aliso Viejo; or online anywhere in the United States through the JenCalling app.
How much does personal training cost?
Sessions are 60 minutes. Studio training rates start at $99 and in-home training starts at $125. Online coaching is $595 for the 6-week Foundation Reset, $1,095 for the 12-week Elite Evolution and $1,995 for the 24-week Complete Transformation when paid in full; the 12- and 24-week programs can also be paid every two weeks.
How do I get started?
Book a free 15-minute discovery call by phone or video. It is a conversation, not a sales call: you talk through your goals, your schedule and the format that suits you. If you go ahead, training starts with a comprehensive assessment of your goals, lifestyle and current fitness level. Call or text (949) 432-6940, Monday to Friday 6 AM to 8 PM and Saturday 10 AM to 4 PM.
Does Jennifer work with women in perimenopause and menopause?
Yes. Strength training and nutrition for perimenopause and menopause are at the center of her work, and she is going through the transition herself. Training will not stop hot flashes, but it improves sleep, mood, joint pain, strength, body composition, and long-term heart and bone health.
How does online coaching work?
It starts with an onboarding consultation (60 minutes, or 90 minutes on the 24-week program). You then train from a custom plan in the JenCalling app, with video check-ins (weekly on the 6-week program, every two weeks on the longer ones) and coach messaging during business hours. Programs run for 6, 12 or 24 weeks.
Is Jennifer a registered dietitian?
No. She is an ISSA Certified Nutritionist and Health Coach who provides nutrition education and habit coaching. She does not provide medical nutrition therapy and refers clients to licensed professionals when clinical nutrition care is needed.
What are Jennifer's qualifications?
She is an ISSA Master Trainer, Certified Personal Trainer, Certified Nutritionist and Health Coach, and holds a B.A. from the University of Washington. She is a five-time Ironman finisher, including the Ironman World Championship in Kona, and an NPC Masters fitness competitor. She founded JenCalling in December 2022.
Latest Insights
Expert advice on fitness, nutrition, and wellness
- Active Aging
- Active Aging
- Mindset
- Weight Loss
- Weight Loss
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- Cardio
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- Nutrition
- Nutrition
- Nutrition
- Strength Training
- Strength Training
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- Recipes
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- Sleep
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