Trust the Process. Enjoy the Journey.

SFIDA IS ABOUT BUILDING A LIFESTYLE THAT SUPPORTS YOUR GROWTH, RESILIENCE, AND COMMUNITY.

Are you ready to challenge yourself? Join today!

At SFIDA, we believe that real transformation begins with a challenge. More than just a fitness platform, SFIDA is a movement—a thriving community designed to inspire, empower, and support individuals in achieving their personal wellness goals. Whether you're here to build strength, improve your health, or connect with like-minded individuals, we provide the structure and guidance you need to unlock your full potential.

SERVICES

Achieve your fitness goals with expert coaching tailored to your needs:

  • Personalized guidance to help you build lifelong healthier habits.

  • Flexible training programs accessible from anywhere.

  • Structured fitness plans available as one-time purchase as PDF.

  • Start strong—with zero commitment. Join our free weekly SFIDA Run Club – Saturdays in NYC. All levels welcome. Come for the movement, stay for the connection. Or test out our free trial including 2 Training Sessions.

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Khelvin is the real deal // Working with Khelvin has been a game-changer // Khelvin is a miracle fitness trainer…

CLIENT LOVE — read more below

  • Working with Khelvin has been a game-changer for me! He's not just a personal trainer, he's a true motivator. He has an incredible ability to help me focus and stay on track, which has been crucial in achieving my fitness goals. He seamlessly blends weight training and cardio, keeping things interesting and effective. Every session is a new adventure, pushing me to my limits while still making me enjoy the process. If you're looking for a trainer who is dedicated, knowledgeable, and can make fitness enjoyable, Khelvin is your guy!

    Gabri Gherbaz

  • Khelvin is the real deal! Professional, motivating, and no-nonsense in the best way. He gave me a kick-ass workout every single session and whipped me into shape just in time for summer pool season. If you're looking to transform your body and push past your limits, he's your guy.

    Crystal P.

  • Working with Khelvin had been an absolute game-changer! Khelvin didn’t just transform my fitness routine—he completely rewired how I see exercise. Every session was like a fun, sweaty adventure, and somehow, he made pushing my limits feel like an accomplishment instead of a chore. From day one, he tailored workouts that felt challenging but achievable. My strength, energy, and confidence went up through the roof! Plus, his contagious enthusiasm and witty banter kept the energy high even when I was drenched in sweat. If you want someone who will push you, support you, and get you in the best shape of your life while keeping the process fun, look no further. Khelvin is a miracle fitness trainer with a side of motivation—and my body is living proof!

    Kez Cruz

  • My partner started training with Khelvin first and saw amazing results quickly, so I decided to join in too. I was hoping to get more toned for our Hawaii wedding, and I was extremely satisfied with the results. I also really appreciated how Khelvin handled our 2:1 training sessions. My partner is a lot more athletic than me, and I was pretty new to working out regularly. Khelvin always made sure our workouts were challenging for both of us, giving us different weights and reps. He was also very encouraging and supportive and made the sessions super fun for everyone :)

    Soo Park

  • Training with Khelvin was a game-changer! His own transformation, from lean model to muscular athlete, speaks to his expertise and dedication. His smart supersets kept me working even while resting certain muscles. Beyond just pushing me, he fine-tuned my form with small but impactful tweaks, explaining how each movement should feel and which muscles were activated. Every session was challenging, motivating, and fun. If you want a trainer who truly knows their stuff and keeps you progressing, Khelvin is the one!

    —

SFIDA’s PHILOSOPHY

SFIDA

(Italian, noun)

—

Challenge

An invitation to push beyond limits. A dare to rise. A call to become more.

SFIDA, derived from the Italian word meaning "CHALLENGE," is built on the philosophy that true growth happens outside of comfort zones. We bridge fitness, lifestyle, and social networking, creating a space where wellness is a shared journey.

STAY CONNECTED. STAY INSPIRED.

Subscribe to the SFIDA newsletter for fitness tips, wellness insights, exclusive event invites, and community updates—delivered straight to your inbox. Whether you're just starting out or leveling up, we’ve got the tools, motivation, and mindset to keep you moving forward.

JOIN THE SFIDA NEWSLETTER

JOIN THE SFIDA NEWSLETTER

SELF-PACED RESOURCES

Workout Plan — MEN BUILT
$22.00

Downloadable & Printable — Muscle gain & fat loss for men 30–50

A results-driven strength and conditioning program combining classic lifts, strategic rest, and fat-burning finishers. Build size, loose fat, and feel stronger than ever.

Workout Plan — MEN ENGINE
$22.00

Downloadable & Printable — Peak performance for athletic men 28–55


Train like an athlete. A high-performance blend of strength, power, endurance, and mobility for the already-active man who wants to elevate every area of his fitness.

Workout Plan — MEN SHRED
$22.00

Downloadable & Printable — Fat loss for men 25–55


A strategic mix of strength, HIIT, and core-focused circuits designed to burn fat, maintain lean muscle, and maximize metabolism—no fluff, just results.

Workout Plan — WOMEN STRONG HER
$22.00

Downloadable & Printable — Muscle building & toning for women 30–50


A well-rounded strength program designed for women looking to build lean muscle, burn fat, and feel powerful—without the bulk.

Workout Plan — WOMEN SCULPT
$22.00

Downloadable & Printable — Full-body toning for women 30–55


Lean muscle, strong lines, and body confidence. A sculpting plan that blends high-rep strength, cardio bursts, and recovery to tighten and tone from head to toe.

Workout Plan — WOMEN BURN
$22.00

Downloadable & Printable — Fat loss & metabolic conditioning for women 30–55

Sustainable, fat-blasting workouts with low-impact options. This program combines full-body strength, core work, and cardio to support healthy fat loss and lasting energy.

MISSION

SFIDA is dedicated to helping individuals achieve their fitness goals and elevate their quality of life through customized programs tailored to their unique needs. We cultivate a community where people are empowered to challenge themselves and grow—not just physically, but mentally and emotionally. SFIDA is more than fitness; it’s about lifestyle, connection, and continuous self-improvement.

FREE RESOURCES

RUN CLUB

WHERE FITNESS MEETS COMMUNITY

Lace up and level up—every Saturday in New York City, the SFIDA Run Club hits the pavement for an energizing group run that’s all about movement, motivation, and meaningful connection. Led by Khelvin, founder of SFIDA and certified elite trainer, this free weekly run is open to all levels and designed to fuse fitness with social vibes. Come for the run, stay for the community. No pressure, no judgment—just good energy and great people. See you there!

START YOUR JOURNEY ON US!

COMPLIMENTARY CONSULTATION & 2 FREE TRAINING SESSIONS

Your transformation begins with a single step. At SFIDA, we believe in the power of experience, which is why we’re offering a complimentary consultation and two free training sessions. Get a taste of our expert coaching, tailored programs, and supportive community—risk-free. Challenge yourself, embrace the process, and take the first step toward becoming your best self.

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