Nelle Fox
Founder and Head Running Coach
Rachel Spaulding Lemcke
Running Coach
Zach Mathias
Sprints, Jumps, and Power Coach
NELLE FOX
Founder / Owner
"Ensnare your goals with an approach that both enhances your wellness and optimizes your potential."
Education and Certifications
Master of Education, University of Virginia
Running Coach (RRCA, USATF, V.02, UESCA)
Ultrarunning Coach (UESCA)
Integrative Health and Endurance Nutrition Coach (IIN and UESCA)
Personal Trainer and Group Fitness Instructor (NASM and TRX)
Gait Analyst (Run DNA)
I’ve been an athlete for as long as I can remember—competing in cross country and track through middle and high school, earning multiple all-state titles and state championships. But it wasn’t until after the birth of my second child in 2013 that I truly began to call myself an endurance runner.
In the postpartum haze, I was like many new mothers—wanting to shed the “baby weight” but also curious about what my body was capable of after two natural births. Inspired by friends tackling half and full marathons, I set my sights on a half. I designed my own training plan, blending safety and accountability, and within 10 months of giving birth, I had set PRs in multiple distances, won a trail championship, and discovered a passion that would transform my life.
Through that journey, I learned that successful, sustainable training is a balance—science-backed structure paired with the joy and community of running to prevent burnout.
Over the years, I’ve evolved as both an athlete and coach: repeatedly Boston Qualifying with more than 30 marathons and ultramarathons under my belt, and certifications as an RRCA Running Coach, TRX Qualified Coach, NASM Certified Personal Trainer, USATF Level I Track & Field Coach, and Institute for Integrative Nutrition Health Coach.
Based in Harrisonburg, VA, I’m passionate about helping runners, near and far, make their training both sustainable and transformative—supporting athletes in building strength, resilience, and a deep connection to the sport. My goal is for every athlete I work with to feel empowered, enriched, and equipped to tackle any challenge, leaving them not just faster or stronger, but more accomplished, disciplined, and powerful.
RACHEL SPAULDING LEMCKE
Run Coach
College athlete 2014-2018 with many swimming awards, acknowledgements, and records
1x open water marathon swimmer and podium finisher
2x Boston marathon finisher
16 ultramarathons to date with 14 being top 5 finishes (Race Results)
Rabbit Elite Teammate since 2021
Smokies Challenge Adventure Run FKT 2022: 72 miles on AT with 18,600 ft gain, Three Ridges and Priest FKT 2022: 24 miles with 7.300 ft gain
Personal success in distances 50K-100 miles but enjoys 100k and 100 mile distance the most because of the problem solving and strategic thinking that goes into it
BS in Human Services with a minor in youth development Masters Public Health
UESCA Ultra Running Coach Certification
NASM Women's Fitness Specialist Certification
Certified personal trainer and group fitness instructor ISSA
COROS Evolab coach and content creator
Former high school and middle school cross country coach; 2021 girls conference champions
Coach of the year award for Blue Ridge conference
College swim coach previously at University of Lynchburg (2018-2020)
Rachel is one of our amazing run coaches. She's had success in distances 50K-100 miles but enjoys the longer 100k and 100 mile distances the most because of the problem solving and strategic thinking that goes into it. Rachel coaching background includes high school and middle school cross country coaching, including a conference championship win for her girls team in 2021, and coach of the year award for Blue Ridge conference.
ZACH MATHIAS
Coach
Coaching Specialties:
Track & Field
Cross Country
Football
Baseball
Power Lifting
Coaching Highlights
I was first introduced to the sport of track and field as a freshman at Spotswood High School. While track was in my blood, I had primarily been a baseball player up until then. But in the spring of my 9th grade year, I made the switch to outdoor track and never looked back. After 4 wonderful years of outdoor track, and 3 years of indoor, I made the decision to run at the collegiate level and signed with Concord University in Athens, WV as a dual sport athlete. It was during my freshman year at CU when my athletic career and my future got turned upside down, after sustaining a career ending spine injury in football season. I didn’t know it then, but that injury would lead me down the road to where I am today. With losing my ability to play sports, I lost all motivation in school, and ended up coming home after the fall semester of my third year.
I had no idea what I was going to do, but about 2 months later I received a message from one of my high school coaches, who was now the Head Track Coach at the newly opened East Rockingham High School. They were in need of another assistant coach for their upcoming inaugural season. This was it, this was my chance to reconnect with the sport I once fell in love with. Fast forward 13 years, and the rest is history!
I’m not just a high school coach, my passion has grown into so much more.. enter Excel Rocktown, now Magnum Opus Coaching! Coaching isn’t just my job, it's who I am. And I look forward to sharing this passion of mine with my new Magnum Opus Coaching Family!
TYLER MILLER
Running Coach
We're equally delighted to introduce Coach Tyler Miller to our team! Tyler brings a unique perspective as someone who discovered running relatively recently but has achieved remarkable progress in a short time.
Tyler began running in February 2023, initially just a mile or two as a means to burn extra calories. That modest beginning quickly transformed into a passion, culminating in an impressive 3:14:37 marathon in Richmond, VA by the end of the year.
Beyond running, Tyler enjoys hiking, swimming, and strength training. His short-term goals include running a sub-19 5K, sub-38 10K, sub-1:25 half marathon, and a sub-3:00 marathon. Long term, he aims to qualify for Boston and eventually venture into multisport with a half-Ironman.
Tyler's favorite race experience has been the Ukrop's Monument Avenue 10K, which he describes as having "a flat and fast course" with "crowd/atmosphere that is something to experience; such an uplifting community!"
Tyler's recent experience transitioning from beginner to accomplished runner gives him a fresh perspective that's particularly valuable for newer runners looking to make significant progress.
Are you ready to elevate your fitness journey? Connect with our dedicated team at Magnum Opus Coaching and discover personalized coaching that drives results.