TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
Language selector
Menu
NL

Codi Tan

Amersfoort BJJ

W–L
1–4
Won and lost rating-eligible matches in the past 12 months.
Gi
1,149
Rating based on Gi matches in the past 12 months.
No-Gi
-
Rating based on No-Gi matches in the past 12 months.
Current form
1–4
Results from the ten most recent rating-eligible matches.
Opponents
5
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

7
Indexed competition matches
Date Opponent Result Event Division
2025-10-25 Jayce Tai
Loss
Lion Cub Jiu Jitsu Competition 5 Gi · Boys GI / 7 & 8 years old (DAY 2: Sunday) / Grey belt / -30 kg
2025-10-25 Alberto Cassano
Loss
Lion Cub Jiu Jitsu Competition 5 Gi · Boys GI / 7 & 8 years old (DAY 2: Sunday) / Grey belt / -30 kg
2025-10-25 Davi Van Heeswijk
Loss
Lion Cub Jiu Jitsu Competition 5 Gi · Boys GI / 7 & 8 years old (DAY 2: Sunday) / Grey belt / -30 kg
2025-10-25 Kais De Boisgency
Loss
Lion Cub Jiu Jitsu Competition 5 Gi · Boys GI / 7 & 8 years old (DAY 2: Sunday) / Grey belt / -30 kg
2025-10-25 Sil Bruins Slot
Win
Lion Cub Jiu Jitsu Competition 5 Gi · Boys GI / 7 & 8 years old (DAY 2: Sunday) / Grey belt / -30 kg
2024-10-19 Virgilio Gallo Cavalcanti
Win
Lion Cub Jiu Jitsu Competition 3 Gi · Boys / 5 - 6 years / Grey / -24 & -27 kg
2024-10-19 Livan De Keijzer
Win
Lion Cub Jiu Jitsu Competition 3 Gi · Boys / 5 - 6 years / Grey / -24 & -27 kg

Calculation details

Rating breakdown for the past 12 months

See the published month-end rating and the rating-eligible matches added in each month. Open a month for details.

August 2026 No new matches Change -1 Rating 1,149

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
5 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

July 2026 No new matches Change +1 Rating 1,150

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
5 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

June 2026 No new matches Change +2 Rating 1,149

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
5 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

May 2026 No new matches Change -9 Rating 1,147

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
5 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

April 2026 No new matches Change 0 Rating 1,156

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
5 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

March 2026 No new matches Change 0 Rating 1,156

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
5 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

February 2026 No new matches Change 0 Rating 1,156

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
5 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

January 2026 No new matches Change +4 Rating 1,156

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
5 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

December 2025 No new matches Change +1 Rating 1,152

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
5 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

November 2025 No new matches Change +4 Rating 1,151

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
5 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

October 2025 5 new matches · 2 left period Change -142 Rating 1,147

Rating-period composition

Rating matches
5 +3
Record
1–4 Previous month 2–0
Opponents
5 +3
Events
1 0

2 older matches left the 12-month period: 2 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

New rating matches

This is a current what-if estimate: roughly how much the current rating changes when this match is omitted. These values cannot be added and therefore do not together explain the monthly change.
Loss
October 25, 2025 Jayce Tai
Lion Cub Jiu Jitsu Competition 5 Boys GI / 7 & 8 years old (DAY 2: Sunday) / Grey belt / -30 kg
Method Submission 00:56 0–0
Marginal influence -19
Loss
October 25, 2025 Alberto Cassano
Lion Cub Jiu Jitsu Competition 5 Boys GI / 7 & 8 years old (DAY 2: Sunday) / Grey belt / -30 kg
Method Submission 01:15 0–6
Marginal influence -30
Loss
October 25, 2025 Davi Van Heeswijk
Lion Cub Jiu Jitsu Competition 5 Boys GI / 7 & 8 years old (DAY 2: Sunday) / Grey belt / -30 kg
Method Submission 00:12 0–0
Marginal influence -31
Loss
October 25, 2025 Kais De Boisgency
Lion Cub Jiu Jitsu Competition 5 Boys GI / 7 & 8 years old (DAY 2: Sunday) / Grey belt / -30 kg
Method Submission 00:11 0–0
Marginal influence -6
Win
October 25, 2025 Sil Bruins Slot
Lion Cub Jiu Jitsu Competition 5 Boys GI / 7 & 8 years old (DAY 2: Sunday) / Grey belt / -30 kg
Method Points 03:00 6–2
Marginal influence +34
September 2025 No new matches Change 0 Rating 1,289

Rating-period composition

Rating matches
2 0
Record
2–0 Previous month 2–0
Opponents
2 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

Relevant matches
3.3
Official ranking percentile
-
Performance
-

3.3 weighted matches against 5 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,347
Repeated-opponent share
0.0%
Network connectivity
87.6%

Classification evidence

Why U10?

Within the published period from 2025-09-01 through 2026-08-31, only competition ages recorded at events in the calculation year determine this outcome, with at most one vote per event. Without such an age, the most recent unambiguous earlier competition age is projected to the calculation year; bracket evidence is the final fallback. The newest evidence breaks a tie.

Evidence outcome

  • U10 1 event vote Selected outcome

Registrations and outcomes

Lion Cub Jiu Jitsu Competition 5
U10 · Counts
Boys GI / 7 & 8 years old (DAY 2: Sunday) / Grey belt / -30 kg
  • Competition age 8
  • Registered age: u10
  • Source category: u10

Classification evidence

Why ≤ 27 kg?

This outcome uses at most one unambiguous upper weight limit per completed ranking event from 2025-09-01 through 2026-08-31. Only the three most recent eligible events are considered, and the lightest verified upper limit is selected. A higher division is not treated as measured body weight.

Evidence outcome

  • ≤ 27 kg 1 competition event Selected outcome

Registrations and outcomes

Lion Cub Jiu Jitsu Competition 5
≤ 27 kg · Counts as a competition event
Boys GI / 7 & 8 years old (DAY 2: Sunday) / Grey belt / -30 kg
  • Registered weight class: -27 kg
  • Source competition limit: -27 kg

5 matches in the rating period

Classification evidence

Why White?

This outcome uses the belt category of every rating-eligible match from 2025-09-01 through 2026-08-31. The most-fought category is selected; the newest evidence breaks a tie.

Evidence outcome

  • white 5 matches in the rating period Selected outcome

Registrations and outcomes

Lion Cub Jiu Jitsu Competition 5
white · Counts as a match
Boys GI / 7 & 8 years old (DAY 2: Sunday) / Grey belt / -30 kg
  • Source belt category: white

5 matches in the rating period