Jamie Sum

Grappling Industries HONG KONG 2026-01-11

• Lost vs Koen Luke Teo (Gracie Barra Singapore)
  No Gi Kids / Intermediate (Grey) / 6 - 7 years / -55 lbs · Round 4 · submission
• Won vs Poon Chi Chung (Red impulse bjj)
  No Gi Kids / Intermediate (Grey) / 6 - 7 years / -55 lbs · Round 3 · submission
• Lost vs Cheuk Yin Lui (KOWLOON JIU JITSU)
  No Gi Kids / Intermediate (Grey) / 6 - 7 years / -55 lbs · Round 2 · submission
• Lost vs LONG YIN Reynold WONG (KOWLOON JIU JITSU)
  No Gi Kids / Intermediate (Grey) / 6 - 7 years / -55 lbs · Round 1 · submission
• Lost vs Bryant Liang (4Rivers BJJ Academy)
  Gi Kids / Grey / 6 - 7 years / -55 lbs · Round 4 · submission
• Lost vs Cheuk Yin Lui (KOWLOON JIU JITSU)
  Gi Kids / Grey / 6 - 7 years / -55 lbs · Round 4 · submission
• Lost vs Robyn Sam Jones (Fitness in Motion)
  Gi Kids / Grey / 6 - 7 years / -55 lbs · Round 3 · points
• Won vs Tso Sin Hang (Red impulse bjj)
  Gi Kids / Grey / 6 - 7 years / -55 lbs · Round 2 · submission

HKJJA Hong Kong Summer Open & HK Team Trial 2025-07-05

🥈 2nd Kids & Teens Gi / Male / Kid 1 & 2 / White & Grey / -23 kg

• Lost vs Ziyuan Zhou (HONOR JIU JITSU ACADEMY)
  Kids & Teens Gi / Male / Kid 1 & 2 / White & Grey / -23 kg · Round 3 · submission
• Won vs Albert Zhiyu Zhu (HONOR JIU JITSU ACADEMY)
  Kids & Teens Gi / Male / Kid 1 & 2 / White & Grey / -23 kg · Round 2 · submission
• Won vs 楷霖 郑 (HONOR JIU JITSU ACADEMY)
  Kids & Teens Gi / Male / Kid 1 & 2 / White & Grey / -23 kg · Round 1 · points