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Isaac Okuka

BRUSSELS BRAZILIAN JIU JITSU ACADEMY

W–L
2–1
Won and lost rating-eligible matches in the past 12 months.
Gi
1,264
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
2–1
Results from the ten most recent rating-eligible matches.
Opponents
3
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

8
Indexed competition matches
Date Opponent Result Event Division
2025-11-22 Rizgar Deniz
Loss
BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Gi · Boys Gi / White-Grey / 6-7 yrs / -28 kg
2025-11-22 Mathias Rivera
Win
BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Gi · Boys Gi / White-Grey / 6-7 yrs / -28 kg
2025-11-22 Souheil Belkasem
Win
BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Gi · Boys Gi / White-Grey / 6-7 yrs / -28 kg
2025-02-22 Mohamed Taghzou
Loss
Interclub Jiu Jitsu 22/02 Gi · Boys Gi / White-Grey / 6-7 yrs / -26 kg
2025-02-22 Mohamed Taghzou
Loss
Interclub Jiu Jitsu 22/02 Gi · Boys Gi / White-Grey / 6-7 yrs / -26 kg
2024-12-07 Issa OKUKA
Win
INTERCLUB GRAPPLING (NO GI) No-Gi · Boys / White - Grey / 4-5 yrs / -24 kg
2024-12-07 Unknown User
Win
INTERCLUB GRAPPLING (NO GI) No-Gi · Boys / White - Grey / 4-5 yrs / -24 kg
2024-12-07 Naïl El Azouzi
Loss
INTERCLUB GRAPPLING (NO GI) No-Gi · Boys / White - Grey / 4-5 yrs / -24 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 0 Rating 1,264

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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 1,264

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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 -1 Rating 1,263

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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 -7 Rating 1,264

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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 +1 Rating 1,271

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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 -7 Rating 1,270

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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 · 2 left period Change +40 Rating 1,277

Rating-period composition

Rating matches
3 -2
Record
2–1 Previous month 2–3
Opponents
3 -1
Events
1 -1

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

January 2026 No new matches Change +3 Rating 1,237

Rating-period composition

Rating matches
5 0
Record
2–3 Previous month 2–3
Opponents
4 0
Events
2 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 · 3 left period Change -85 Rating 1,234

Rating-period composition

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

3 older matches left the 12-month period: 2 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

November 2025 3 new matches Change +28 Rating 1,319

Rating-period composition

Rating matches
8 +3
Record
4–4 Previous month 2–3
Opponents
7 +3
Events
3 +1

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
November 22, 2025 Rizgar Deniz
BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Boys Gi / White-Grey / 6-7 yrs / -28 kg
Method Points 02:00 0–7
Marginal influence -44
Win
November 22, 2025 Mathias Rivera
BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Boys Gi / White-Grey / 6-7 yrs / -28 kg
Method Points 02:00 2–0
Marginal influence +50
Win
November 22, 2025 Souheil Belkasem
BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Boys Gi / White-Grey / 6-7 yrs / -28 kg
Method Points 02:00 13–0
Marginal influence +27
October 2025 No new matches Change 0 Rating 1,291

Rating-period composition

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

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

September 2025 No new matches Change 0 Rating 1,291

Rating-period composition

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

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

Relevant matches
2.3
Official ranking percentile
-
Performance
-

2.3 weighted matches against 3 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,275
Repeated-opponent share
0.0%
Network connectivity
87.6%

Classification evidence

Why U8?

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

  • U8 1 event vote Selected outcome

Registrations and outcomes

BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS
U8 · Counts
Boys Gi / White-Grey / 6-7 yrs / -28 kg
  • Competition age 6
  • Registered age: u8
  • Source category: u8

Classification evidence

Why ≤ 28 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

  • ≤ 28 kg 1 competition event Selected outcome

Registrations and outcomes

BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS
≤ 28 kg · Counts as a competition event
Boys Gi / White-Grey / 6-7 yrs / -28 kg
  • Registered weight class: -28 kg
  • Source competition limit: -28 kg

3 matches in the rating period

Classification evidence

Why Grey?

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

  • grey 3 matches in the rating period Selected outcome

Registrations and outcomes

BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS
grey · Counts as a match
Boys Gi / White-Grey / 6-7 yrs / -28 kg
  • Source belt category: grey

3 matches in the rating period