Fabio Augusto Rezende — known to fans everywhere as Fabio Giga — is one of Brazil’s most recognisable bodybuilders. 🇧🇷
With his huge frame, heavily tattooed arms and the nickname “Giga Old Big Boy”, he built a following in the millions long before he ever stood on a major American stage.
But Giga’s story is not just about size. It is about a metalworker who started lifting in 1999 and worked his way, step by step, to an IFBB Pro card and the Arnold Classic stage. 💪
Fabio Giga: Quick Facts
Full name: Fabio Augusto Rezende
Known as: Fabio Giga, Giga Old Big Boy
Nationality: Brazilian 🇧🇷
Born: 29 June 1976 (age 50 in 2026)
Height: reported at around 180 cm (about 5 ft 11 in)
Status: IFBB Pro bodybuilder, nutritionist and coach
From Metalworker to Bodybuilder
Giga grew up in Brazil and spent years working in industry, including around 15 years as a metalworker. He began training in bodybuilding around 1999, encouraged by one of his brothers.
Like many lifters, he poured almost everything he earned into food, supplements and training. The gym slowly went from a hobby to the centre of his life. 🏋️
He later studied nutrition, a move that now shapes his second career as a coach — and his content is still built around training and eating for size.
The Breakthrough: Brazilian Titles
Giga’s first major competitive success came in 2014, when he won the Super Heavyweight division at the Campeonato Paulista in Brazil.
He followed that in 2017 by winning the Mr. Rio contest, taking both the Super Heavyweight class and the Overall title. Those wins made him a name to watch in Brazilian bodybuilding. 🏆
Earning the IFBB Pro Card (2020)
His career-changing moment came in 2020, when he travelled to the United States for the Arnold Classic Ohio Amateur.
There he won the Super Heavyweight division and the Overall title — and with that victory came his IFBB Pro card. He was now an international professional bodybuilder. ✨
For a lifter who had started out in a Brazilian gym in 1999, it was the reward for more than two decades of work.
The 2022 Arnold Classic: 9th in the Men’s Open
Giga’s biggest professional stage appearance came at the 2022 Arnold Classic Men’s Open in Columbus, Ohio, on 4–5 March 2022.
He finished 9th in a stacked line-up won by Brandon Curry, ahead of William Bonac in second and Steve Kuclo in third. Samson Dauda was fourth that night.
Notably, the man directly ahead of Giga in 8th was Maxx Charles, another wave-28 refresh on this site — a reminder of just how deep that Arnold Classic field really was. 🔥
A top-10 finish at the Arnold Classic is no small achievement. Only a handful of athletes in the world are even invited, and Giga earned his place among them.
What About After 2022?
Here is the honest position, and it matters: no verified IFBB Pro contest result for Fabio Giga after the 2022 Arnold Classic was found during research for this refresh.
That does not mean he stopped training — far from it. His public work since then has centred on coaching, nutrition consultations and content, including his YouTube channel and his @fabiogigapro Instagram presence.
So in 2026, the fair way to describe him is this: an IFBB Pro whose competitive peak so far is the 2022 Arnold Classic, now better known as a coach and fitness personality. Any future comeback would be news — it is not claimed here. 👀
Training Philosophy
Giga’s approach has always been simple and heavy: lift big weights, push sets hard, and listen to your body rather than following a programme blindly.
He has spoken about training by feel — adding forced reps where they help, and adjusting to what his body responds to. It is old-school bodybuilding, with no shortcuts promised. 💪
For younger lifters, the lesson is less about copying his weights and more about copying his patience: his pro card took over 20 years.
Diet and Nutrition
As a qualified nutritionist, Giga treats food as the fuel for everything else. His old-school approach centres on high protein, with carbohydrates timed mainly around mornings and post-workout meals.
No exact current meal plan or calorie figure is published here, because none could be verified for 2026 — and a made-up “Giga diet plan” would help nobody. 🍗
What is safe to say is that his coaching work today is built on the same principle: consistent, protein-rich eating, planned around training, not guesswork.
Why Fabio Giga Still Matters
Giga matters because he represents a route into pro bodybuilding that does not start with fame or money. He started as a working man, trained for years in Brazil, and earned his way onto the Arnold Classic stage.
His heavily tattooed look also made him instantly recognisable — and raised the same debate fans still have today: can a physique covered in ink score fairly against cleaner-looking rivals?
Whatever your view, his 2022 Arnold Classic top-10 finish answered the bigger question: he belonged on that stage. And like Roelly Winklaar, another giant of the same era, he showed that mass with personality can still capture a crowd. 🌍
Brazil’s bodybuilding scene has grown enormously, and Giga is part of that story — alongside the athletes in our look at how bodybuilding is rising around the world and the next generation chasing their own pro cards.
Frequently Asked Questions
Who is Fabio Giga?
Fabio Giga is the stage name of Brazilian IFBB Pro bodybuilder Fabio Augusto Rezende, also known as “Giga Old Big Boy”. He is known for his massive, heavily tattooed physique and his coaching work.
When did Fabio Giga turn pro?
He earned his IFBB Pro card in 2020 by winning the Super Heavyweight and Overall titles at the Arnold Classic Ohio Amateur.
What was Fabio Giga’s best Arnold Classic result?
He placed 9th in the Men’s Open at the 2022 Arnold Classic in Columbus, Ohio, in a field won by Brandon Curry.
How old is Fabio Giga in 2026?
Born on 29 June 1976, he turned 50 in June 2026.
Is Fabio Giga still competing in 2026?
No verified IFBB Pro contest result for Giga after the 2022 Arnold Classic was found. His recent public work is coaching, nutrition and fitness content rather than contest bodybuilding.
Fabio Giga’s journey — from metalworker to Arnold Classic top-10 finisher — is a reminder that bodybuilding rewards the patient. 🏆
He may not be chasing an Olympia qualification in 2026, but his place in Brazil’s bodybuilding story is secure — and his coaching now passes those lessons on to the next generation.