Leah Maselli Pilates Instructor & PbL Founder

Meet the Creator of Pilates by Leah

I’m Leah, a certified Pilates instructor and licensed Registered Dietitian with a passion for movement, strength, and helping others feel confident in their bodies.

Before Pilates, I spent ten years as a competitive gymnast and four years as a Division I track and field athlete. That experience taught me the power of smart, intentional training, and the importance of proper recovery. Pilates became my go-to method for rebuilding strength and mobility after years of high-impact movement.

I began teaching Pilates part-time during my undergraduate and graduate studies, and continued while working full-time as a dietitian before eventually making the leap into teaching full-time. Since then, I’ve taught over 4,000 group reformer classes across franchise studios, consistently maintaining full or waitlisted classes. My teaching journey has taken me from Florida to Western Australia to California, where I’ve also led workshops on creative sequencing and elevating the art of teaching.

After years of teaching 30+ classes a week in large group settings, I realized there was a need for a better system, one that helps instructors stay organized, inspired, and confident while managing a full schedule.

That’s what led me to create Pilates by Leah: a platform built to guide and support instructors by giving them all the tools I wished I had when I was in the thick of teaching. My teaching style is athletic, intelligent, empowering, and purpose-driven—blending the discipline of Pilates with the freedom of functional strength. Through detailed class plans, practical cueing strategies, and a supportive instructor community, my mission is to help teachers feel confident, prepared, and passionate about their craft.