Jayden Ko + Follow

2026 San Jose Open 2026-09-19

🥈 2nd Male / Intermediate Novice / Under 30kg [No Double Knee, No Chokes, No Armbars]

• Lost vs Kayden Manglona (San Jose Judo Academy)
  Male / Intermediate Novice / Under 30kg [No Double Knee, No Chokes, No Armbars] · Round 2 · ippon
• Lost vs Kayden Manglona (San Jose Judo Academy)
  Male / Intermediate Novice / Under 30kg [No Double Knee, No Chokes, No Armbars] · Round 1 · yuko

2026 East Bay Invitational Judo Tournament (USJF #26-09-02) 2026-09-13

🥈 2nd Junior Male 11-12 / Under 74 lbs / Intermediate

• Won vs Benjamin Mirlohi (Napa SAL Judo Club)
  Junior Male 11-12 / Under 74 lbs / Intermediate · Round 3 · hansokumake
• Won vs Auguste Verniere (Tri-Valley Judo)
  Junior Male 11-12 / Under 74 lbs / Intermediate · Round 2 · ippon
• Lost vs Ajax Kaindl (Hanabi Judo)
  Junior Male 11-12 / Under 74 lbs / Intermediate · Round 1 · yuko

36th Annual Bojuka Judo Invitational Tournament USJF Sanction #26-08-06 2026-08-30

🥉 3rd Pool 66 / Boys 10-11 Yrs Old / White to Yellow-Orange Belt / 67-73 lbs

• Lost vs Panji Muljadi-Allen (Concord Judo Club)
  Pool 66 / Boys 10-11 Yrs Old / White to Yellow-Orange Belt / 67-73 lbs · Round 3 · decision
• Lost vs Tamon Thakor (Silicon Valley Judo)
  Pool 66 / Boys 10-11 Yrs Old / White to Yellow-Orange Belt / 67-73 lbs · Round 2 · ippon

2026 USJF Summer Nationals 2026-07-11

🥉 3rd Intermediate Male Novice / Male / 11 - 12 years / Novice / -30 kg

• Lost vs Kayden Manglona (San Jose Judo Academy)
  Intermediate Male Novice / Male / 11 - 12 years / Novice / -30 kg · Round 3 · ippon
• Lost vs Kayden Manglona (San Jose Judo Academy)
  Intermediate Male Novice / Male / 11 - 12 years / Novice / -30 kg · Round 1 · ippon

Palo Alto Judo Tournament 2026 2026-02-22

🥈 2nd Jr Male White-Yellow 10 & 11 62-66lbs

• Won vs Nicholas Zhou (Silicon Valley Judo)
  Jr Male White-Yellow 10 & 11 62-66lbs · Round 5 · ippon
• Lost vs Benjamin Mirlohi (Napa SAL Judo Club)
  Jr Male White-Yellow 10 & 11 62-66lbs · Round 4 · ippon
• Won vs Kai Kuwata Self (Hanabi Judo)
  Jr Male White-Yellow 10 & 11 62-66lbs · Round 3 · yuko
• Won vs William Montgomery (San Francisco Judo Institute)
  Jr Male White-Yellow 10 & 11 62-66lbs · Round 1 · ippon

2026 Champions Cup 2026-02-01

🥉 3rd 10yo - 12yo | Male | White - Yellow | Under 31kg - No Chokes, No Armbars

• Won vs Clark Gibo (Tamayo Judo club)
  10yo - 12yo | Male | White - Yellow | Under 31kg - No Chokes, No Armbars · Round 5 · ippon
• Lost vs Kai Kuwata Self (Hanabi Judo)
  10yo - 12yo | Male | White - Yellow | Under 31kg - No Chokes, No Armbars · Round 4 · ippon
• Lost vs Benjamin Mirlohi (Napa SAL Judo Club)
  10yo - 12yo | Male | White - Yellow | Under 31kg - No Chokes, No Armbars · Round 2 · hansokumake
• Won vs London Kwon (CJ Judo)
  10yo - 12yo | Male | White - Yellow | Under 31kg - No Chokes, No Armbars · Round 1 · walkover

2025 San Jose Open 2025-10-04

• Lost vs Joseph Nielsen (CJ Judo)
  Bantam 3 Novice / Male / Under 31kg | No Chokes, No Armbars, No Double Knee Drop · Round 3 · yuko
• Won vs Yashar Ghereghlou (Tamayo Judo club)
  Bantam 3 Novice / Male / Under 31kg | No Chokes, No Armbars, No Double Knee Drop · Round 2 · wazari
• Lost vs Parker Coles (San Diego Judo)
  Bantam 3 Novice / Male / Under 31kg | No Chokes, No Armbars, No Double Knee Drop · Round 2 · ippon

2025 East Bay Invitational Judo Tournament (USJF #25-09-02) 2025-09-14

• Won vs Kevin Kuo (Hanabi Judo)
  Junior Male 9-10 / White-Yellow / NOVICE · Round 4 · ippon
• Lost vs Jeremiah Ruan (CYC Judo)
  Junior Male 9-10 / White-Yellow / NOVICE · Round 3 · ippon
• Lost vs Alex Hirata (Silicon Valley Judo)
  Junior Male 9-10 / White-Yellow / NOVICE · Round 2 · ippon
• Won vs Sahmi Tjernell (Hanabi Judo)
  Junior Male 9-10 / White-Yellow / NOVICE · Round 1 · ippon

35th Annual Bojuka Judo Tournament 2025-08-24

🥇 1st Junior Boys | White-White/Yellow Belt | 10-11 Yrs Old

• Won vs Andrei Boiciuc (Nakano Judo Academy)
  Junior Boys | White-White/Yellow Belt | 10-11 Yrs Old · Round 3 · wazari
• Won vs Nicholas Zhou (Silicon Valley Judo)
  Junior Boys | White-White/Yellow Belt | 10-11 Yrs Old · Round 2 · ippon
• Won vs Clark Gibo (Tamayo Judo club)
  Junior Boys | White-White/Yellow Belt | 10-11 Yrs Old · Round 1 · ippon

2025 Champions Cup 2025-03-16

🥉 3rd [No Chokes, No Double Knee Drop] Boys / White - Yellow / 8-10 YO / Under 26kg

• Won vs Alex Hirata (Silicon Valley Judo)
  [No Chokes, No Double Knee Drop] Boys / White - Yellow / 8-10 YO / Under 26kg · Round 3 · ippon
• Won vs Joseph Nielsen (CJ Judo)
  [No Chokes, No Double Knee Drop] Boys / White - Yellow / 8-10 YO / Under 26kg · Round 2 · decision
• Lost vs Maxwell Zhu (Tri-Valley Judo)
  [No Chokes, No Double Knee Drop] Boys / White - Yellow / 8-10 YO / Under 26kg · Round 2 · yuko
• Won vs Takuto Hishiki (San Jose Buddhist Judo)
  [No Chokes, No Double Knee Drop] Boys / White - Yellow / 8-10 YO / Under 26kg · Round 1 · ippon

Palo Alto Judo Tournament 2025 2025-02-23

🥇 1st Junior Male 9-10 years old / Under 57lbs / White, Yellow

• Won vs Jaiden Mirchandani (Tri-Valley Judo)
  Junior Male 9-10 years old / Under 57lbs / White, Yellow · Round 3 · ippon
• Won vs Darwin Nguyen (San Jose Judo Academy)
  Junior Male 9-10 years old / Under 57lbs / White, Yellow · Round 2 · ippon
• Won vs Alex Hirata (Silicon Valley Judo)
  Junior Male 9-10 years old / Under 57lbs / White, Yellow · Round 1 · wazari