Marcus Wong

Marcus Wong is a Grey belt Brazilian jiu-jitsu competitor from SJJA Team, with a recorded Australian record of 26–30.

GreyHigh volume

Fought 56 recorded matches as Grey since Nov 2025

Upset win

Ended a 10-match win streak

Beat Christopher Michael Koulianos at NSWBJJF WINTER CUP 2026 while they were on a 10-match run.

Wins

Win rate

46%

Losses

Recorded performance56 matches

53%

20–18 · 38 matches

No-Gi

33%

6–12 · 18 matches

By belt

Grey26–30 · 5646%

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Penelope Janes	7 Dec 2025Grappling Industries SYDNEY	No Gi Kids / Intermediate (Grey) / 4 - 5 years / -45 lbs	Walkover
Ranui King	7 Dec 2025Grappling Industries SYDNEY	No Gi Kids / Intermediate (Grey) / 4 - 5 years / -45 lbs	Decision
Olivia Hughes	7 Dec 2025Grappling Industries SYDNEY	Gi Kids / Grey / 4 - 5 years / -45 lbs	Submission
Penelope Janes	7 Dec 2025Grappling Industries SYDNEY	Gi Kids / Grey / 4 - 5 years / -45 lbs	Walkover
Egan Mulhern	7 Dec 2025Grappling Industries SYDNEY	Gi Kids / Grey / 4 - 5 years / -45 lbs	Points
Ranui King	23 Nov 2025NSWBJJF SUMMER CUP 2025 - GI & NO GI	Boys Gi / Grey / Mighty Mite II (5yrs) / 20.0 kg	Submission