Sunset training session on a rooftop

BUILD FITNESS FOR SPORTS, LIFE AND ADVENTURE

Coaching, travel and retreats built on real movement, real coaching and real connection.

CF-L3
CrossFit Level 3 Coach
15+
Years coaching
3
Continents delivered
BSc
Exercise Science & Physical Education
The brand

One coach. Three ways in.

coachserg.io connects everything I do: individual coaching, fitness travel for people, and full retreat delivery for gyms and coaches. The thread through all of it is simple — real movement, real coaching, real connection.

Live.

Train for a life that feels good outside the gym — energy, capacity, adventure.

Learn.

Understand the why behind the work so progress keeps going without me.

Lead.

Set the standard for the people around you — at home, in sport, in your gym.

The approach

Four things, done properly.

Move

Strength, conditioning and skill built on quality movement — not random hard work.

Nourish

Simple, sustainable nutrition habits that support performance and daily life.

Recover

Sleep, load management and honest recovery so progress compounds instead of breaking you.

Connect

Training with people, in real places. Community is part of the programme, not a bonus.

Experiences

Real people. Real experiences.

Different goals. Different backgrounds. Different journeys. Here's what people who have trained, travelled and worked with us have to say.

Experiences are being collected.

New testimonials are reviewed before they go live. If you've trained, travelled or worked with us, your story is welcome here.

Share your experience
Sergio Sartori Jr., CrossFit L3 coach
About

Sergio Sartori Jr.

CrossFit Level 3 coach with more than 15 years working with athletes, beginners, coaches and gym owners across Brazil, Australia and Bali. I've coached in boxes, on beaches, in mountains and online — and the best results always came from the same mix: good coaching, honest effort and real human connection.

Today I coach individuals online, run Fitcaytions fitness holidays, and deliver retreats for gyms and coaches who want to give their community something unforgettable.

Philosophy

Fitness beyond the gym.

In a world becoming more online, disconnected and overcomplicated, coachserg.io brings fitness back to real life. Move better. Learn more. Live fully. Lead by example.

Ready to move beyond the gym?

Pick the path that fits, send your details, and I'll reply personally within 24–48 hours.