Discover Your True Potential with Sovereign Endurance
Endurance Starts Here
At Sovereign Endurance, we believe that every athlete has a different story. Whether you're running your first 5K or preparing for your next Ironman, our mission is to help you write yours—stronger, smarter, and more confident on race day.
We provide personalized coaching for runners and triathletes, combining experience, empathy, and passion for endurance sport. All our programs are delivered through the Training Peaks platform, ensuring detailed workout tracking, scheduling, and ongoing communication with your coach.
Meet Your Expert Coaches
Maria Castro - Head Coach
Maria is an Ironman 70.3 World Championship qualifier with over 8 years of coaching experience. As a competitive swimmer, age-group triathlete, and experienced running coach, she brings a comprehensive understanding of endurance sports to every athlete she works with. Maria is bilingual (English/Spanish) and holds certifications including:
- Running Coach Certification
- Certified Personal Trainer (CPT)
- Strength Training Specialist
- Nutrition Certification
- USA Triathlon Certified
Wesley Brown - Ultra & Trail Running Coach
Wesley specializes in marathon and ultra-distance running, with expertise in race-day nutrition, pacing strategies, and mental preparation for long-distance events. Currently training for the Houston Marathon and Ironman 70.3 Dallas 2026, Wesley brings real-world experience to his coaching philosophy.
Training Plans for Every Level
Sovereign Endurance offers three coaching tiers designed to meet you where you are in your athletic journey:
Basic ($80/month)
Perfect for runners starting their journey. Includes personalized training plans, workout reviews and feedback, email support, and pacing guidance.
Intermediate ($110/month) - Most Popular
For runners seeking advanced guidance. Everything in Basic plus advanced pacing strategies, race-specific training plans, bi-weekly check-ins, and nutrition guidance.
Premium ($140/month)
Elite 1-on-1 coaching. Everything in Intermediate plus weekly coaching calls, custom race strategy, mental preparation coaching, and unlimited messaging support.
Real Results from Real Athletes
"I have placed my trust in every training block Maria has provided, and because of her guidance, I have surpassed goals I once thought were out of reach. Under her coaching, we have successfully trained for marathons, triathlons, Ironman competitions, and now, a 100-mile ultra marathon."
"Coach Maria hasn't just helped me as an athlete, but as a person too. The lessons she's taught me about hard work, staying consistent, and never giving up have carried over into my everyday life."
"I started training with Coach Wesley in October 2024 to prepare for the Austin Half Marathon. Before this program, I wasn't running at all, but with Wesley's guidance, I finished with an average pace of 10:30 per mile, well under my original target of 12 minutes per mile."
Why Sovereign Endurance?
- Expert Coaching: Work with certified coaches who have decades of combined experience in endurance sports and athlete development.
- Proven Methods: Science-backed training protocols refined through thousands of successful athlete journeys from beginner to elite.
- Results Driven: Our athletes consistently achieve PRs, podium finishes, and breakthrough performances in races worldwide.
By The Numbers
Ready to Transform Your Training?
Join hundreds of athletes who have discovered their true potential with Sovereign Endurance. Whether you're chasing your first finish line or your next PR, our experienced coaches are ready to guide you every step of the way.
Wesley Brown
Elite Runner & Certified Coach
