Sjef van de Werf 🇳🇱
132 profile views · Last seen 1 hour(s) ago
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About
- Training since first belt7 year(s) and 2 month(s)
- Medals7
2
3
2
- BirthdayFebruary 27, 199234 years old
- LocationDen Bosch, Netherlands
- AcademyYoujitsu Verified
- AffiliationHoneybadgers
- Member sinceJuly 20233 years on Beltchecker.com
Gi or no-gi
Gi and no-gi equallynow
50% Gi50% No-gi
- White50% gi
- Blue50% gi
- Purple50% gi
Achievements
4 of 18 unlockedCurrent rank verified by promoting instructor
Name verified by credit card
Profile manually reviewed & certificate issued
Verifications received14 / 25
102550
Years trained7 / 10
5101520
Gold medals2 / 5
51025
Competition matches0 / 10
1050100
Forum posts0 / 500
5001,000
Wall
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SV
JMDo you have any pictures of your promotion you could post?
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Promotion history
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- 4 months, 19 days
Purple belt Current belt
June 27, 2026Den Bosch
Promoted by
2 years, 11 months, 19 daysBlue belt
July 8, 2023Youjitsu
Promoted by- Stripe 1January 20, 2024
- Stripe 3December 21, 2024
- Stripe 4June 21, 2025
- 3 years, 10 months, 7 days
White belt
September 1, 2019Youjitsu
- Stripe 3December 18, 2021
- Stripe 4July 16, 2022
Votes received for current rank
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"verified"
"Student of my bb twin, Brian."
"Student"
"Sjef is a team mate and student. Also a realy good guy. "
"Sjef has some solid jiu jitsu I know from occasionally training with him."
"I don't know Sjef, but there seems to be enough evidence to verify rank. :)"
"Good profile, claimed by promoting party. "
"Coach Brian confirmed "
"Confirmed promotion "
"Super goeie gast"
Medals
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Grappling Industries AMSTERDAM
Mar 1
BJJ Dutch Open NO-GI 2025
Jun 2025
Grappling Industries AMSTERDAM
Feb 2025
Grappling Industries AMSTERDAM
Feb 2025
BJJ Dutch Open 2023
Dec 2023
Evolve Submission Grappling Championship 2023
May 2023
BJJ Dutch Open 2022
Dec 2022
