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MEET STEVEN

WHO AM I?

FOUNDER AND HEAD COACH

Hi, I’m Steven Lowenthal, founder and head coach at Premier Endurance Coaching. I’m a passionate endurance athlete with years of experience in triathlon, running, and coaching athletes at all levels—from first-timers to seasoned competitors.

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Whether you’re looking to complete your first triathlon, smash a personal record, or find balance in your training, I’m here to guide you. My approach is all about building trust, creating a genuine connection, and providing you with a personalized plan that fits your life and goals.

WHY DO I COACH?

PASSION, PURPOSE, AND YOUR SUCCESS!

I’ve always had a passion for sports, starting with soccer in my childhood in Guatemala. I was fortunate enough to earn a scholarship to play soccer in the United States, first at a small college in California and later at the University of North Florida. After college, I stayed connected to the game through competitive adult leagues and coaching women’s high school soccer. But after tearing my ACL, I decided it was time to step away from soccer.

In 2017, a friend introduced me to triathlon, and I dove in headfirst. I completed three Ironman 70.3s and two full Ironman races in 2018, and I was hooked. The sport reignited my passion for competition and fitness. By 2021, I was coaching myself and my girlfriend (now wife), and soon I started helping others—family, friends, and eventually athletes all across the US, Canada, and Guatemala.

Coaching for me isn’t just about giving training plans; it’s about building trust with my athletes and helping them grow as individuals—physically and mentally. I’m here to help you train with purpose, stay accountable, and show up on race day stronger than ever before.

MY BACKGROUND

A COACH WHO INVESTS IN YOUR SUCCESS

  • 1st Place at the 2024 Ironman Florida

  • 15-time Top 5 Age Group finisher in both Ironman
    and Ironman 70.3 events

  • 2-time Ironman World Championship competitor

  • 4-time Ironman 70.3 World Championship competitor

  • 4 Years of experience coaching athletes at all levels

  • Passion for building trust, accountability, and a genuine connection to help athletes thrive

SUPPORT SYSTEM

BEHIND EVERY GREAT COACH,
THERE'S A STRONG SUPPORT SYSTEM

While I’m the coach at Premier Endurance Coaching, my wife, Jennifer Sylva, plays a vital role in our business. As an endurance athlete herself, she’s a key part of our operations and helps us provide the best experience for every athlete. From managing logistics to offering support and motivation, Jennifer ensures that our athletes are fully supported throughout their journey.


Together, we make sure that you receive personalized,responsive coaching and a community that believes in your success.

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