Online running Coach in Boston

Whether you're preparing for your first Boston Marathon or just want to enjoy the Charles River runs with better endurance, BeFit provides science-based training that fits your lifestyle. We combine personalized coaching, strength training, and recovery strategies to help you reach your goals without injury or burnout. Boston runners face unique terrain, weather, and pacing challenges. Our app-based coaching adapts to that so you can thrive year-round.

Our plans provide comprehensive training designed to help you run joyfully without feeling overwhelmed.

Strength

Smart runners don’t just log miles. Our weekly strength workouts are built to support your joints, improve posture, and increase power essential when training on Boston’s unpredictable terrain and classic hills.

Mobility & Yoga

Stay limber through the seasons. Each plan includes mobility drills and yoga flows to aid recovery, especially during New England's cold, tight winters or post-marathon recovery.

Technique

Posture, cadence, and breathing matter. With expert feedback and simple tools, you’ll improve your running economy and reduce the risk of injury.

Strategy

We help you plan your weeks around the Boston racing calendar, layering in effort-based training, pacing, and recovery to align with your goals and lifestyle.

Our memberships

  • Basic membership

    10K, half-marathon, and marathon plans. Includes weekly strength & yoga, mindset tips, and community access.

    $70/USD monthly

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  • Premium Membership

    All Basic features + two 1:1 consults with a sports nutritionist to align fueling strategies with your training.

    $190/USD monthly

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  • See Add On

    Quick 1:1 calls for race prep, shoe feedback, form checks, or gear advice. Only available to members.

    $35/USD


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We serve runners in Boston

From the Back Bay to Brookline, Cambridge to Jamaica Plain, BeFit supports women running along the Esplanade, across the Emerald Necklace, or training on the Boston Marathon route. Whether you prefer early runs in the Common or interval sessions at MIT track, we design coaching around your environment. And because everything is delivered virtually, you can train on your time, no commute, no gym.

Hello, I’m Coach Kari – your online running coach in Boston


With years of experience supporting athletes through Boston's seasons and race culture, I help you train smarter, not harder. Whether you’re aiming for the Boston Marathon or simply want to feel stronger during your daily loop around Jamaica Pond, my evidence-backed training methods meet you where you are. I blend strength, strategy, and recovery to help you grow into the runner you want to be.

MEET ME

Frequently Asked Questions

How do I know a personal running coach is right for me?

If you’re training in Boston, chances are you're serious about results. A personal coach gives you structure, feedback, and accountability and helps you train safely on Boston's hills and through its winter months.

How does online coaching work?

You get a weekly training plan via our app, with strength, mobility, and run workouts tailored to your local routes and goals. Stay connected with your coach through check-ins and progress reviews.

How do I choose an online coach?

Choose someone who understands your local conditions. With experience guiding runners through Boston’s weather swings and competitive culture, BeFit offers personalized support with proven results.

What’s the best training plan for my 5K, 10K, or half marathon?

The best plan is one that adapts to your life. Whether you're running the B.A.A. 10K or prepping for your first half along the Seaport, we design plans around your schedule, goals, and current fitness.

Is this program suitable for beginners?

Absolutely. We work with runners of all levels, including those training for their very first 5K. Boston beginners benefit from structure, support, and expert guidance as they build confidence and endurance.