From Janja to the top
He started with nothing
Erko Jun, born Ermin Junuzović, grew up as a war refugee. In 1992 his family fled Bosnia to a refugee camp in Germany, eventually settling in Antwerp, Belgium. As a teenager he got into trouble on the streets, until trainer Bill Richardson pushed him to channel that energy into sport.
After a devastating leg injury at 16, Erko discovered his passion for bodybuilding. Under coach Bill's guidance he won three consecutive junior championships in the Benelux and appeared on six international fitness magazine covers in 2014. But the fighter in him kept calling.
Proof he kept winning
3x Junior Champion
Three consecutive junior bodybuilding titles in the Benelux, guided by coach Bill Richardson.
International fitness face
On the cover of 6 international fitness magazines in one year, from Muscle & Fitness to FIT.
MMA debut at KSW 44
First-round knockout at KSW 44 in Warsaw, the start of an unbeaten MMA career.
BRAVE CF World Champion
TKO in round 4 in Ljubljana: Light Heavyweight Champion. Record: 9 wins, all by KO/TKO.
JunFit launched
AI-powered fitness app with motion tracking. The coach he himself missed, now for everyone.
Chasing a second belt
Stepped into the middleweight division to fight for a second world title, against veteran Mohammad Fakhreddine. A fighter who always aims for the very top.
Title defense in Ljubljana
Defended his Light Heavyweight title and gave everything for four rounds against Mohamed Said Maalem. Back to the drawing board, hungrier than ever.
JunFit, even better
JunFit fully leveled up on everything users taught us: faster, smarter and more personal than ever.
Now he coaches you
Today Erko builds JunFit. Camera that counts your reps at home, and him in your WhatsApp. Two things nobody can copy without him. His mission: be the coach he himself missed as a teenager.