Greg Maertens
| Greg Maertens VERIFIED | |
| Gray belt 1 stripe(s) VERIFIED | |
| 1 year(s) and 11 month(s) of training | |
| 6 competition matches (4-2-0) | |
2 medals (0 x  2 x  0 x  ) | |
| 147hr 30m of training logged | |
| November 21, 2012 (age 12) | |
| Oostende, West-Vlaanderen, Belgium | |
| Ronin MMA Germany/Belgium VERIFIED | |
| Behring Jiu Jitsu / RONIN M.M.A. Jiu Jitsu | |
 | Smoothcomp profile |
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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 |
Coaches
 | Eric Van Vaerenbergh Ronin MMA Germany/Belgium Blankenberge, Belgium Black belt 3rd degree |
 | Diego Afonso Verde Ronin MMA Germany/Belgium Wenduine, Belgium Black belt |
Gray belt verification progress
Profile filled out Promotion history filled out Identity Confirmed 50+/50 vote points
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Promotion history
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January 19, 2025 - Blankenberge/Belgium/RONIN M.M.A.
0 year(s) 6 month(s) 15 day(s)
Stripe 1: July 13, 2025
August 13, 2023 - Blankenberge/Belgium/RONIN M.M.A.
1 year(s) 5 month(s) 6 day(s)
Stripe 1: November 26, 2023
Stripe 2: February 25, 2024
Stripe 3: June 16, 2024
Stripe 4: November 3, 2024
Stripe 2: February 25, 2024
Stripe 3: June 16, 2024
Stripe 4: November 3, 2024
Medals
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| Gi Interclub Grappling Vlaanderen | |
| No Gi Interclub Grappling Vlaanderen |  |
Competition record
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| Celine Modde | Win Won By Walk Over |
| Ciano Van Ceunebroucke | Loss Lost On Points |
| Euam Besems | Win Won On Points |
| Harun Ibrahim | Win Won On Points |
| Mohamed Hassan Adkhi | Win Won On Points |
| Rafael Gregoire | Loss Lost On Points |
Seminars, camps & workshops attended
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| BJJ workshop with Professor Frank Beels |  |
