For those who train with Gee at Onyx, the match offers another opportunity to see one of our own coaches doing what we encourage our competitors to do: test their skills, put themselves under pressure and continue learning through competition.
The whole Onyx squad will be behind Coach G when she steps onto the mat.
From Karate black belt to Brazilian Jiu-Jitsu competitor
Gee brings a broad martial-arts background to the Onyx coaching team. Long before developing her Brazilian Jiu-Jitsu and submission-grappling skills, she built extensive experience in Karate, reaching 4th Dan black belt.
Her competition history stretches back years. The official results from the 2015 GKR Karate World Cup list Ghislaine Hallacy among the bronze medallists.
She subsequently developed her Brazilian Jiu-Jitsu, earning her purple belt in 2025 according to her academy biography, while continuing to compete and coach. That experience gives her a perspective that crosses disciplines: movement, timing and distance from a striking background, alongside the positional control and problem-solving of grappling.
A proven No-Gi competitor
Gee’s competition experience includes conventional tournaments and invitational superfights. Her competition biography supplied to Onyx records appearances at Impact Invitational and Warehouse JJ, alongside the 2023 No-Gi Jiu-Jitsu British Open.
Her documented tournament record includes the Mauricio Gomes Legacy Cup Buckinghamshire 2024. The published match record lists her in Female No-Gi Middle, Adult Blue, including a submission win over Solana Gamboa. The blue-belt category reflects her rank at that event, rather than her current purple-belt status.
That experience matters to the people she coaches. Gee is still testing her own Jiu-Jitsu, preparing for opponents and working through the demands of competition.
Final Kumite 6: Gee Hallacy vs Rae Hussey
The next test comes on 24 October 2026: Gee Hallacy vs Rae Hussey, 60kg, No-Gi.
Brighton BJJ’s official Final Kumite page describes an eight-person bracket event with additional superfights, and lists the next event at the Brighthelm Centre, North Road, Brighton, BN1 1YD.
The bracket uses a hybrid gi/no-gi format. Gee’s announced match is a separate No-Gi superfight; the bracket’s randomly selected format should not be confused with her bout.
Check the organiser’s event information or follow its Final Kumite 6 ticket link for current arrangements.
For an active coach, a match has value beyond the result. Decisions have to be made under pressure. Positions become harder to hold. Small technical errors matter. Those experiences provide useful lessons to bring back into training.
Coaches who still compete
We value experience on the mats at Onyx Combat Academy in Northampton. Across our coaching team, that experience includes professional MMA, Judo, wrestling, international Kickboxing and active Brazilian Jiu-Jitsu and submission-grappling competition.
Gee contributes directly to that culture. She understands preparing for a match, managing nerves and trying to make a technique work against somebody determined to stop it.
Improvement continues throughout a coaching career. Tom Mearns’ upcoming OXO match is another example of an Onyx coach continuing to test himself in competition.
Female-led Brazilian Jiu-Jitsu at Onyx
Gee plays an important role in our female-led Brazilian Jiu-Jitsu programme. Representation can help women and girls feel more comfortable taking their first steps onto the mats, backed by clear instruction and a credible martial-arts background.
She brings years of training, a 4th Dan Karate background and active grappling experience to her coaching. Beginners can learn at their own pace, while aspiring competitors have someone who understands the demands of stepping out to compete.
Competition remains optional. Our grappling programme includes recreational members as well as athletes preparing for events. Visit ZR Team Northampton’s dedicated BJJ website for the wider Brazilian Jiu-Jitsu programme, or ask our team about female-led training.
The Onyx squad is behind Coach G
When one of our athletes or coaches competes, the result belongs to the individual, while the preparation involves a room full of people. Training partners provide the rounds. Coaches offer another set of eyes. Teammates help keep the work moving.
Eventually, someone has to walk out and put that preparation to the test. On 24 October, it is Gee’s turn.
Ghislaine “Gee” Hallacy vs Rae Hussey. 60kg. No-Gi. Final Kumite 6.
From everyone at Onyx Combat Academy: we’re behind you, Coach G. Go get it.
Meet the coach behind the competitor.
Read about Gee’s background and approach to helping students develop.
Read Gee’s coach profile