Take Your training from guesswork to grounded!

certified running and autoimmune coach

I help curious runners find their rhythm: moving from guesswork to grounded with training that supports both their goals and their well-being. Whether you're training for your first marathon or managing a chronic illness while training, I provide personalized plans, expert guidance, and unwavering support to help you run stronger, recover smarter, and reach your full potential.

Hi, I’m Mireille! I’m a Certified Running and aIP (Autoimmune protocol) coach.

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Are you ready for a personalized approach to your running journey? My 1:1 coaching is designed to meet you where you are, whether you're building consistency, managing an autoimmune condition, or training for a race. Together, we’ll create a custom plan tailored to your goals, challenges, and lifestyle, with ongoing support to help you thrive every step of the way. 1:1 coaching is especially for you if: (1) you want to build a strong running base (2) you want to overcome reoccurring struggles in your training cycles, (3) you want to add strength training to boost your potential, (4) you want to learn how to properly fuel your runs and races, and (5) you want to let go of having to think about EVERY aspect of your training.

What to know what’s included in 1:1 coaching? I got you!

-Tamara

“Working with Mireille was one of the best decisions I’ve made. She is understanding, listens to your goals, creates plans that work for your lifestyle, and she’s encouraging! There were definitely times I thought: “I don’t know if I can do this,” and Mireille pushed me to believe in myself. If you choose Mireille as your coach, it’s an investment you won’t regret!”

A smiling woman wearing running gear and race medals, standing outdoors at a race event with other participants and spectators in the background.
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As Seen In:

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ABOUT ME

Hi, I’m Mireille Siné, a dedicated running coach specializing in helping road/trail runners and athletes with autoimmune conditions thrive. As an athlete who has lived with an autoimmune condition (lupus) for 10+ years, I understand the unique challenges that autoimmune athletes face. With my education, certifications, and 15+ years of running experience, I provide personalized training plans with a compassionate, science-backed approach, I’m here to help you run stronger, recover smarter, and achieve your goals - no matter the challenges you face.

CONNECT WITH ME ON INSTAGRAM

When I close my eyes, I find myself back among the trees. There was so much to take in just at eye level that craning my neck for a peak at the treetops felt like a workout. As time changed so did the trail, depending on the light. A hill climbed i
That’s A Wrap On 100k!!! Whooooo, what a ride 🎢 Last year I was able to do 50 miles at Zion and yesterday I reached a new level with 100k at Redwoods. Every loop and every mile held different stories and emotions. It’s so funny how you
Day Two of 100k Attempt!! Holy moly - moving slower but still moving! Did another 10 mile loop then cranked out seven 2 mile loops. Just when you think you have nothing left, you’ll find that you have just a little bit more if you push. Thes
Day One - 24 Miles! Haven’t been on the trails as much this year, but @officialmilestoneevents makes it easy to hop back in! Started at 5am and had an eventful day! I got stung by something for the first time (slide 7), and let me tell you,
Trying to keep up with training while traveling isn’t easy! Here are some quick tips to (hopefully) help you manage while you’re on the go: 1. Prep before you leave: if your hotel doesn’t come with a gym, look up routes around wher