Marshall Mougine 🇺🇸
270 profile views · Last seen 3 month(s) ago
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About
- Training since first belt10 year(s) and 7 month(s)
- BirthdayFebruary 19, 197749 years old
- LocationMukilteo, Washington, United States of America
- AcademySleeper Jiujitsu Unclaimed
- AffiliationSleeper Jiujitsu
Achievements
5 of 18 unlockedCurrent rank verified by promoting instructor
Name verified by credit card
Profile manually reviewed & certificate issued
Verifications received16 / 25
102550
Years trained10 / 15
5101520
Gold medals0 / 5
51025
Competition matches0 / 10
1050100
Forum posts0 / 500
5001,000
Wall
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MMThank you, got it fixed up, appreciate you!
JKHey Marshall, the dates are a bit off. You need to change the date of promotion for your black belt - it’s the same date as your brown belt promotion 😉👍
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Promotion history
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- 8 months, 17 days
Black belt Current belt
January 14, 2026Sleeper Jiu Jitsu
Promoted by - 2 years, 1 month, 24 days
Brown belt
November 21, 2023Sleeper Jiu Jitsu
Promoted by - 2 years, 1 month, 3 days
Purple belt
October 18, 2021Sleeper Jiu Jitsu
Promoted by - 4 years, 6 months, 7 days
Blue belt
April 11, 2017Sleeper Jiu Jitsu, Lynnwood WA
Promoted by - 1 year, 2 months, 8 days
White belt
February 3, 2016GB Kirkland, Kirkland WA
Votes received for current rank
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"congratulations, Marshall!"
"legit profile congrats on the black "
"Jan 2026 BB confirmed by Cindy, who is also verified by me."
"Marshall Mougine's Brazilian Jiu-Jitsu progression aligns with IBJJF minimums, including over four years at blue belt, more than two years at purple, and over two years at brown before his black belt promotion. Cynthia Hales, a verified fourth-degree black belt and pioneer in women's BJJ, operates Sleeper Jiu Jitsu and has promoted him, as evidenced by competition databases like Smoothcomp. His 2025 IBJJF brown belt results in master divisions confirm consistency with reported timelines. As of my Jan-14-2026 review, this may take a while to get confirmed given no pictures, I encourage Marshall to beef this up. Cindy just confirmed minutes ago which helps too. Legit!"
"Lots of high quality photo evidence. Legit!"
"Congratulación "
"Verified "
"Congrats on your promotion!"
"Verified by promoting instructor "
"I don't know Marshall, but there seems to be enough evidence to verify rank. :)"
