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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.

Honours

Medals and placements

Gold
2
Silver
4
Bronze
1
Total medals
7
Events with results
5

Full career record

Wins
10
Losses
5
Matches
15
Win rate
66.7%

Ways of winning

Submission
4
Points
5
Decision
1
Disqualification
0

Personal records

Longest winning streak
7
Longest submission streak
4
Longest gold streak
1
Largest recorded points win
9–0

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
1
Distinct events
1

Ways of winning

  • Submission 0
  • Points 0
  • Decision 0
  • Other recorded result 0

Gi versus No-Gi

Gi

Rating
1146
Record
0–1
Win rate
0%
Submission share
-

No-Gi

Rating
1137
Record
0–1
Win rate
0%
Submission share
-

Win quality

Grouped by pre-match win probability. This provides context and does not award an extra rating bonus.

As underdog 0–0 Less than 35% expected win probability before the match.
Even match 0–0 Between 35% and 65% expected win probability before the match.
As favourite 0–0 More than 65% expected win probability before the match.

Development

Rating and development

The same published rating, supported by trend, opponent strength and evidence quality.

Current rating
1,236
Change over 90 days
-20
Highest rating in 12 months
1,336
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,585
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
50%
Effective evidence
2
Confidence
39/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 4–4 4–4 across 8 rematches against 4 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

No win over a currently ranked opponent in this period.

Full career

  1. #224 Reza Van Dun · Lion Cub Jiu Jitsu Competition 2 Pts 9–0

Rivals

Opponent Head-to-head record Matches
Amy Cumpelik 0–2 2
Dilay Aktug 1–1 2

Recent tournaments

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 1,236

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 +1 Rating 1,235

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 -78 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 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.

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 +2 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 1,316

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 -20 Rating 1,316

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 -9
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 +9
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
1,585
Repeated-opponent share
50.0%
Network connectivity
87.6%

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