Our Coaches
Our coaches are the heart of the Matthew Mark Foundation, bringing expertise, enthusiasm, and a shared commitment to empowering youth through mountain biking and outdoor recreation.
Meet the Team
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Joseph Olivarez—Founder & Lead Coach
Joseph brings a deep passion for bikes, community, and faith to every trail. A former music educator turned mountain bike coach, Joseph created the Matthew Mark Foundation to share the healing power of outdoor adventure and inspire youth to live with hope, purpose, and joy.

Jason Dan—Head Coach, NWA Clinics
Jason leads with wisdom, patience, and stoke. With years of riding experience and a heart for mentorship, he plays a central role in our youth clinics—helping riders progress in skills and confidence both on and off the bike.

Becca Dan—Coach, Homeschool Bike Club
Becca brings calm energy, encouragement, and strong technical knowledge to every session. She's especially gifted with young riders, making sure each kid feels seen, supported and capable.

Sam Acar—Lead Coach, Youth Programming
Sam is known for her infectious positivity and commitment to helping kids find their rhythm on the trails. She helps plan and program clinics, rides, and often takes the time to help riders one-on-one.
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Maggie Attoe—Coach & Community Support
Maggie blends heart, hustle, and an eye for safety into her coaching. Whether she's leading warm-ups or cheering on a new rider, she brings grace and groundedness to every program she touches.
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Jeremy Lessenberry—Skills Coach, NWA Clinics
Jeremy's deep knowledge of bike handling and trail dynamics makes him a key asset to our skills clinics. He's passionate about breaking down techniques and watching confidence grow in every participant.
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David Walker III—Tulsa Lead Coach
Based in Tulsa, David helps lead rides and youth outreach with his steady, encouraging presence. He's deeply committed to using bikes as a vehicle for connection and transformation.

Clayton Gepford—Tulsa Coach & Trail Leader
Clayton's local trail knowledge and easygoing coaching style make him a favorite among new riders. He thrives in group settings and brings a contagious love for riding and fellowship.

Zechariah Snel—Tulsa Coach & Mentor
Zechariah brings spiritual grounding and personal mentorship to our Tulsa programs. With a calm, supportive energy, he meets each rider where they are and encourages growth with humility