This is the virtual nafudakake of the Kuro Obi Kai (black belt society) for the organisation now called Southern Cross Martial Arts and includes students who graded under sensei Damien in either Zen Do Kai Karate or Gōki-Kai Karate. Only the highest known achievement is recorded:

十段 (Judan) / 10th Degree

N/A

九段 (Kyudan) / 9th Degree

N/A

八段 (Hachidan) / 8th Degree

Damien Martin (Kaichō)

七段 (Nanadan) / 7th Degree

N/A

六段 (Rokudan) / 6th Degree

Hannah Thornton (Kyōshi)

John Trebilco ((Kyōshi)

五段 (Godan) / 5th Degree

N/A

四段 (Yondan) / 4th Degree

Grant Davis

Nicole McCluskey

Ted Argyle

Craig (Reggie) Davis

Michael Tomlinson (Renshi)

Tania Rowan

三段 (Sandan) / 3rd Degree

Robert McGregor

Karl Ponsonby

Joel Hancox

二段 (Nidan) / 2nd Degree

Nicola McAllister

John Welding

Chris Kane

Mark Tolland

Warren Walters

Chris Edwards

Brett Gunning

Glenn Robertson

Peter Maloney

Brodie Manning

Cara Johnson

Rhys Phillips

Stephen Hickey

Steve McMurray

Brendan Ryan

Andrew Duynhoven

James Martin

Kyle Alford

James Ball

Jamy Coniglione

Dryden Saddler

Matthew Krenske

Nigel Casey

Aaron Huang

Brooke Thompson

Jenna Elliot Blewman

Jayden Lee

Tim Daley

初段 (Shodan) / 1st Degree

Bruce Barnes

Natalie Paynter

Doug Prescott

Dale Bell

Graeme Davis

Murray Plowman

Wayne Wagstaff

Richard Walsh

Jane Swanborough

Angus Gordon

Corey Andrews

Craig Kermond

Jason Lia

Zdravko Basar

Jeff Aldridge

Aaron McKenzie

Dale Inglis

Briony Darcy

Dominic Kerr

Paul Jeffrey

Ken Waterfall

Shane Brand

Jamie Robertson

Brooke Wagstaff

Stephen Bertram

Michael Vacic

Thomas Collins

Neil Stoddart

Blake Lewis

Riley Molloy

Brielle Halliday

Shervin Shoroosh

Lauren Carr

Broc Campsie

Junior Black Belts

Junior Black Belts who subsequently went on to achieve a senior black belt are listed above.

Junior Black Belt

Ethan Pain

Joshua Russell

Edwina Baillieu

Simon McGowan

Ian White

Mark Cottrill

Zach Gellie

Keith Falcone

Oskar Williams

Caleb Kennedy

Jeanie Jin Palicka

Dareh Saddler

Seth Saddler

Marley Cnningham

Dempsey Tomlinson

Liam Doherty

Malachai Tomlinson

Oscar Harrison

Jayden Lee

Corben Hare

Indigo Cheethan

Heath Wilkes-Johnson

Luca Lorenzi

Charlotte Bluett