Dennis de Booij
| Dennis De Booij VERIFIED | |
| Blue belt 1 stripe(s) VERIFIED | |
| 2 year(s) and 5 month(s) of training | |
| 416hr 5m of training logged | |
| Leiden, Zuid-Holland, Netherlands | |
| UNDERHOOK SOCIETY VERIFIED | |
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Achievements
| Profile manually reviewed & certificate issued | |
| Current rank verified by promoting instructor | |
| Name verified by credit card | |
| 10 verifications received | |
| 25 verifications received | |
| 50 verifications received | |
| Trained for 5 years | |
| Trained for 10 years | |
| Trained for 15 years | |
| Trained for 20 years | |
| Won 5 gold medals | |
| Won 10 gold medals | |
| Won 25 gold medals | |
| 10 competition matches | |
| 50 competition matches | |
| 100 competition matches | |
| 500 forum posts | |
| 1,000 forum posts |
Blue belt verification progress
Profile filled out Promotion history filled out Identity Confirmed 630/200 vote points
100%
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Gallery
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First BJJ training with Iwan Hansen at USC Leiden
Training with Iwan's teacher, Alex Ramirez, and with Jasper from Honeybadgers
Attended Spar Wars on 14 Jan 2024 in Dordrecht, The Netherlands. Two hours of sparring.
Thiago Abreu seminar on sweeps from spider/lasso/DLR guard combinations on Oct 6, 2024 @ BJJ Leiden, The Netherlands
Attended BJJ Globetrotters Spring Camp in Tallinn Estonia. 14 April to 19 April 2025.
Remco Pardoel seminar Leiden 23 March 2025
Trained at CVA jiujitsu in Edinburgh together with fellow globetrotters David Rogers (coach) and Nathan Ferguson.
Helio Moreira SONECA BJJ Seminar on half guard. 14 December 2025, Leusden, the Netherlands
Promotion history
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May 23, 2025 - Underhook Society, Leiden, The Netherlands
0 year(s) 9 month(s) 26 day(s)
Stripe 1: September 12, 2025
October 13, 2023 - Leiden, The Netherlands
1 year(s) 7 month(s) 10 day(s)
Stripe 1: December 15, 2023
Stripe 2: May 31, 2024
Stripe 3: September 13, 2024
Stripe 4: December 6, 2024
Stripe 2: May 31, 2024
Stripe 3: September 13, 2024
Stripe 4: December 6, 2024
Votes received for current rank
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Seminars, camps & workshops attended
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| BJJ globetrotters Spring Camp |  |
| Thiago Abreu seminar on lasso guard sweeps |  |
| Spar Wars |  |
