ABOUT ME

Hi, I’m Peach — a certified NASM Personal Trainer and Precision Nutrition Coach with over 10 years of experience helping people feel stronger, healthier, and more confident in their bodies.

Over the years, I’ve worked with a wide range of clients - from beginners to seasoned athletes - offering personalized training and group fitness coaching that goes beyond quick fixes. My approach is rooted in sustainability and balance. I believe true, long-term change comes from building healthy habits, not restrictions, and I’m here to support you every step of the way. Through smart training, realistic nutrition goals, and a holistic mindset that supports both your physical and mental well-being we’ll create progress that lasts.

I’m here to listen to your goals, understand your needs, and design a plan that fits your life. Whether you're just starting out, getting back on track, or leveling up your current routine, I’ll meet you where you are and help you get where you want to go.

Training with me is more than just a workout - it’s a safe, fun, and supportive experience that keeps you motivated and empowered. I take your goals seriously, and I’m committed to making sure every session moves you one step closer to them.

You’re stronger than you think — I’ll help prove it.

THE EXPERIENCE

All in-person training sessions take place at Infinite Training Systems in Costa Mesa, CA. Located across from The Camp OC, this fully equipped facility is a fitness mecca. It’s a welcoming environment where individuals are able to transform into the best version of themselves.

  • NASM

    Certified Personal Trainer

  • PRECISION

    Certified Nutrition Coach

TESTIMONIALS

  • “It is a pleasure and honor to be training with Marissa Piche, a.k.a. Peach. She is a true professional in every way. With a personalized plan to achieve your goals, Peach provides a safe and nurturing environment to help you discover your best self! She is who you want in your corner. As someone who has worked in the fitness realm for over 15 years, I can attest Peach is cut above the rest; a true gem.”

    — Megan

  • "I never thought I'd be one to hire a personal trainer but working with Peach was one of the best decisions I've made. She is so professional and SO fun to work with. She customizes the programming weekly to help me meet my specific goals and always checks in to see how my body is feeling. Get ready to see the results you've been looking for."

    — Kayla

  • "Training with Peach is hands down my favorite time of the week because I am always greeted with a big hug and 'how are you?' - it feels like I'm coming home after a long day. I have goals that I have been wanting to achieve for EVER and in the 4 months (& counting!) I have trained with Peach I have been pushed, encouraged, & believed in more than ever, and in return I am feeling my best as well as honestly looking my best! 13/10 would recommend!"

    — Emily

  • “Peach is the best trainer! She programs my workouts with intention and purpose. She continues to push me towards my goals I wish to obtain! I feel stronger and more motivated more than ever. I look forward to my slim gym days!!"

    — Kelli

  • "Peach is a great trainer because she always holds me accountable. I’ve had trainers in the past who have let me sweet talk my way into not finishing the last set, or quitting the workout early, but she won’t let me off easy because she genuinely cares about my goals and getting me there."

    — Mario