J
J Martendal
Blue Belt
Ranked competitor representing Gracie Barra Curitiba.
Associations
Performance Scorecard
Dynamic skill index based on verified matches and accomplishments.
14Overall Score
D
Performance RankGi BJJ7
No-Gi / Submission Grappling0
Kids & Juvenile7
Major Titles
Verified achievements recognized on the rankings.
- 1x National Bronze Medalist Gi 2026 (Light Feather - 3rd)
- 1x Juvenile National Bronze Medalist Gi 2026 (Light Feather - 3rd)