Yuiko Koyama
Academia Vitoria
Japan 
Age 11      Belt GRAY
FEMALE GRAY PRE TEEN
Points
9.75
Gold
2
Silver
0
Bronze
1
Sjjif World Accumulative Rank
Ranking
15
Rank Points Gold Silver Bronze
Sjjif World Rank 2025 7.7 1 0 0
kyushu international open jiu jitsu championship 2024 female gray pre teen feather GOLD
Sjjif World Rank 2023 2.05 1 0 1
the 1st reversal jiu jitsu cup 2023 in fukuoka female gray pre teen light feather GOLD
kyushu international jiu jitsu championship 2023 female gray pre teen light feather BRONZ