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Nina Otchwemah

Top Brother Europe

W–L
0–2
Won and lost rating-eligible matches in the past 12 months.
Gi
1,146
Rating based on Gi matches in the past 12 months.
No-Gi
1,137
Rating based on No-Gi matches in the past 12 months.
Current form
0–2
Results from the ten most recent rating-eligible matches.
Opponents
1
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

5
Events
Date Event Result Format Division
DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP Germany · Gi · U16 · yellow · ≤40 kg ; No-Gi · U16 · yellow · ≤40 kg 0–2 W–L: Win / Loss GiNo-Gi
  • Girls Gi (under 16 y.o.) / Yellow / 10-11 years / -44 kg
  • Girls No-Gi (under 16 y.o.) / Yellow / 10-11 years / -44 kg
GERMAN NATIONAL KIDS OPEN CHAMPIONSHIP 2025 Germany · Gi · U16 · grey · ≤40 kg ; No-Gi · U16 · grey · ≤40 kg 3–1 W–L: Win / Loss GiNo-Gi
  • Girls Gi (under 16 y.o.) / Grey / 10-11 years / -40 kg
  • Girls No-Gi (under 16 y.o.) / Grey / 10-11 years / -40 kg
Lion Cub Jiu Jitsu Competition 2 the Netherlands · Gi · 8–9 yo · white · ≤34 kg 4–0 W–L: Win / Loss Gi
  • Girls / 8 - 9 year girls / White / -34 kg
LET´S ROLL BONN IV Germany · Gi · 8–9 yo · ≤39 kg 1–1 W–L: Win / Loss Gi
  • Gi Kids / Beginner / 8-9 years / -39 kg
Lion Cub Jiu Jitsu Competition 1 the Netherlands · Gi · 8–9 yo · white/grey/yellow · ≤34/38 kg 2–1 W–L: Win / Loss Gi
  • Girls / 8 - 9 year girls / White & Grey & Yellow / -34 & -38 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 +2 Rating 1,236

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
Opponents
1 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 0 Rating 1,234

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
Opponents
1 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 · 4 left period Change -79 Rating 1,234

Rating-period composition

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

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

May 2026 No new matches Change +1 Rating 1,313

Rating-period composition

Rating matches
6 0
Record
3–3 Previous month 3–3
Opponents
3 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.

April 2026 No new matches Change 0 Rating 1,312

Rating-period composition

Rating matches
6 0
Record
3–3 Previous month 3–3
Opponents
3 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.

March 2026 No new matches Change -1 Rating 1,312

Rating-period composition

Rating matches
6 0
Record
3–3 Previous month 3–3
Opponents
3 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.

February 2026 No new matches Change -2 Rating 1,313

Rating-period composition

Rating matches
6 0
Record
3–3 Previous month 3–3
Opponents
3 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.

January 2026 No new matches Change 0 Rating 1,315

Rating-period composition

Rating matches
6 0
Record
3–3 Previous month 3–3
Opponents
3 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 Change -3 Rating 1,315

Rating-period composition

Rating matches
6 0
Record
3–3 Previous month 3–3
Opponents
3 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.

November 2025 No new matches Change +1 Rating 1,318

Rating-period composition

Rating matches
6 0
Record
3–3 Previous month 3–3
Opponents
3 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.

October 2025 No new matches Change 0 Rating 1,317

Rating-period composition

Rating matches
6 0
Record
3–3 Previous month 3–3
Opponents
3 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 2 new matches Change -19 Rating 1,317

Rating-period composition

Rating matches
6 +2
Record
3–3 Previous month 3–1
Opponents
3 +1
Events
2 +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
September 13, 2025 Amy Cumpelik
DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP Girls No-Gi (under 16 y.o.) / Yellow / 10-11 years / -44 kg
Method Points 03:00 0–6
Marginal influence -8
Loss
September 13, 2025 Amy Cumpelik
DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP Girls Gi (under 16 y.o.) / Yellow / 10-11 years / -44 kg
Method Submission 03:52 0–6
Marginal influence +8
Relevant matches
2
Official ranking percentile
-
Performance
-

2 weighted matches against 1 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,589
Repeated-opponent share
50.0%
Network connectivity
80.9%

Classification evidence

Why U12?

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

  • U12 1 event vote Selected outcome

Registrations and outcomes

DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP
U12 · Counts
Girls No-Gi (under 16 y.o.) / Yellow / 10-11 years / -44 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Girls Gi (under 16 y.o.) / Yellow / 10-11 years / -44 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12

Classification evidence

Why ≤ 40 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

  • ≤ 40 kg 1 competition event Selected outcome

Registrations and outcomes

DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP
≤ 40 kg · Counts as a competition event
Girls No-Gi (under 16 y.o.) / Yellow / 10-11 years / -44 kg
  • Registered weight class: -40 kg
  • Source competition limit: -40 kg

1 match in the rating period

DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP
≤ 40 kg · Counts as a competition event
Girls Gi (under 16 y.o.) / Yellow / 10-11 years / -44 kg
  • Registered weight class: -40 kg
  • Source competition limit: -40 kg

1 match in the rating period

Classification evidence

Why Yellow?

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

  • yellow 2 matches in the rating period Selected outcome

Registrations and outcomes

DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP
yellow · Counts as a match
Girls No-Gi (under 16 y.o.) / Yellow / 10-11 years / -44 kg
  • Source belt category: yellow

1 match in the rating period

DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP
yellow · Counts as a match
Girls Gi (under 16 y.o.) / Yellow / 10-11 years / -44 kg
  • Source belt category: yellow

1 match in the rating period