Germaine de Randamie
Former UFC champion. Duane cornered her title fights at the very highest level of the sport.
"No — he always believed in me!" Germaine de Randamie on Duane — Mixfight (translated)
Pro MMA fighter, 3rd degree BJJ black belt and the coach behind UFC, PFL and Bellator fighters. Nineteen finishes. Twenty years in the cage. Far from done.
Duane van Helvoirt (Helmond, 1986) has fought professional MMA since 2007, building his record against opponents of real pedigree — no padded résumé, but bouts against legends like Caol Uno and Takeshi Inoue at Tokyo's Korakuen Hall. It earned him a shot at the Shooto world title; COVID-19 decided otherwise. The Shooto European title at –70.3 kg, he does hold.
Away from the cage he is a judo black belt, a 3rd degree black belt in Brazilian Jiu-Jitsu under Frans van Casteren and Gracie Barra legend Vinicius "Draculino" Magalhães, and he studied Sport and Movement Education at HAN University of Applied Sciences. Since the start of his career he has kept a diary around every fight — how he feels before, during and after. It is the quiet engine behind twenty years of craftsmanship.
"This is my big opportunity to show people who I am" Duane van Helvoirt — Asian MMA
W · Unanimous decision — winning at 40. Watch the full event.
W · TKO (elbows) — finished in 58 seconds. Watch the fight.
W · Triangle choke R1 — the comeback after five years. Rewatch via the LFL channel.
W · Unanimous decision over the two-time Shooto champion. Watch the fight.
Professional debut.
2–0 in Tokyo: wins over Caol Uno and Takeshi Inoue.
Shooto world-title fight cancelled by COVID-19.
Comeback by triangle choke + gold at the Dutch Black Belts –76 kg Gi.
Van Buel Sports opens (Elzeneind) and victory at LFL 22.
From the first lesson to the title fight — the same corner.
In the fight game, Duane is known as the coach behind Dutch standouts: from first steps on the mats in Oss to cornering title fights on the world stage.
Former UFC champion. Duane cornered her title fights at the very highest level of the sport.
"No — he always believed in me!" Germaine de Randamie on Duane — Mixfight (translated)
Unbeaten in MMA (9-0, 1 NC) with Duane as his MMA and grappling coach. Main-evented LFL 22 for the interim featherweight title.
7-2 and active at PFL Madrid in March 2026. "Chasing my dream: becoming the very best." (translated)
Pro from the Van Buel Sports stable, forged on the mats in Oss.
Founder of Gracie Barra.
Opened the first Gracie Barra outside Rio; over a hundred black belts.
Gracie Barra Netherlands.
Gracie Barra Oss · gold at the Dutch Black Belts –76 kg Gi (2024, Adults and Masters).
Also: black belt in judo — the foundation under his throws and control.
Duane has been teaching seminars since 2012, alongside names like Andy Souwer and Stefan Struve. Today he travels across the Netherlands and abroad for seminars and clinics at every level — from fundamentals to competition-team training.
Personal coaching at Van Buel Sports in Oss — technique, strength, conditioning or fight-camp preparation. A tailored plan built on twenty years at the top level.
Visibility in the cage, on the mats and online — with a fighter and coach connected to the entire Dutch MMA landscape.