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Sefanja Rosies

Brasa Belgium

W–L
1–5
Won and lost rating-eligible matches in the past 12 months.
Gi
1,108
Rating based on Gi matches in the past 12 months.
No-Gi
1,189
Rating based on No-Gi matches in the past 12 months.
Current form
1–5
Results from the ten most recent rating-eligible matches.
Opponents
6
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
2
Silver
8
Bronze
2
Total medals
12
Events with results
8

Full career record

Wins
15
Losses
19
Matches
34
Win rate
44.1%

Ways of winning

Submission
1
Points
9
Decision
2
Disqualification
0

Personal records

Longest winning streak
3
Longest submission streak
1
Largest recorded points win
16–0

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
1
Unique opponents
6
Distinct events
1

Ways of winning

  • Submission 0 0%
  • Points 1 100%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1108
Record
0–2
Win rate
0%
Submission share
-

No-Gi

Rating
1189
Record
1–3
Win rate
25%
Submission share
0%

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
1,239
Change over 90 days
+79
Highest rating in 12 months
1,221
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,438
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
0%
Effective evidence
4.5
Confidence
67/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 7–7 7–7 across 14 rematches against 5 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

No win over a currently ranked opponent in this period.

Full career

  1. #299 Mujahid Ali Faerber · Be.Brussels Interclub Jiu Jitsu Dec 0–0
  2. #800 Tao Vallée · International Veluwe Open Jiu Jitsu Championship 2023 GI & NO-GI Pts 16–0

Rivals

Opponent Head-to-head record Matches
Rafael Derache 0–3 3
Tao Vallée 2–1 3

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 1,239

Rating-period composition

Rating matches
6 0
Record
1–5 Previous month 1–5
Opponents
6 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 1,238

Rating-period composition

Rating matches
6 0
Record
1–5 Previous month 1–5
Opponents
6 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 1,238

Rating-period composition

Rating matches
6 0
Record
1–5 Previous month 1–5
Opponents
6 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 +2 Rating 1,240

Rating-period composition

Rating matches
6 0
Record
1–5 Previous month 1–5
Opponents
6 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 1,238

Rating-period composition

Rating matches
6 0
Record
1–5 Previous month 1–5
Opponents
6 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 · 2 left period Change +10 Rating 1,238

Rating-period composition

Rating matches
6 -2
Record
1–5 Previous month 1–7
Opponents
6 0
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.

February 2026 No new matches Change -1 Rating 1,228

Rating-period composition

Rating matches
8 0
Record
1–7 Previous month 1–7
Opponents
6 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 +5 Rating 1,229

Rating-period composition

Rating matches
8 0
Record
1–7 Previous month 1–7
Opponents
6 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 0 Rating 1,224

Rating-period composition

Rating matches
8 0
Record
1–7 Previous month 1–7
Opponents
6 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 +3 Rating 1,224

Rating-period composition

Rating matches
8 0
Record
1–7 Previous month 1–7
Opponents
6 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 6 new matches Change +81 Rating 1,221

Rating-period composition

Rating matches
8 +6
Record
1–7 Previous month 0–2
Opponents
6 +5
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.
Win
October 25, 2025 Tiras Rosies
Lion Cub Jiu Jitsu Competition 5 Boys NO-GI / 12 - 14 years old (DAY 1: Saturday) / Yellow & Orange belt / -46 & -50 & -55 kg
Method Points 03:00 17–2
Marginal influence +23
Loss
October 25, 2025 Léo Hostiez
Lion Cub Jiu Jitsu Competition 5 Boys NO-GI / 12 - 14 years old (DAY 1: Saturday) / Yellow & Orange belt / -46 & -50 & -55 kg
Method Submission 00:47 0–7
Marginal influence -5
Loss
October 25, 2025 Nikita Skalevskyi
Lion Cub Jiu Jitsu Competition 5 Boys NO-GI / 12 - 14 years old (DAY 1: Saturday) / Yellow & Orange belt / -46 & -50 & -55 kg
Method Submission 01:03 0–7
Marginal influence -1
Loss
October 25, 2025 Jules Huys
Lion Cub Jiu Jitsu Competition 5 Boys NO-GI / 12 - 14 years old (DAY 1: Saturday) / Yellow & Orange belt / -46 & -50 & -55 kg
Method Submission 02:34 2–9
Marginal influence -7
Loss
October 25, 2025 David Luis
Lion Cub Jiu Jitsu Competition 5 Boys GI / 13 & 14 years old (DAY 1: Saturday) / Orange & Green belt / -46 & -50 & -55 kg
Method Submission 01:16 0–7
Marginal influence -16
Loss
October 25, 2025 Tao Vallée
Lion Cub Jiu Jitsu Competition 5 Boys GI / 13 & 14 years old (DAY 1: Saturday) / Orange & Green belt / -46 & -50 & -55 kg
Method Points 04:00 0–14
Marginal influence -22
September 2025 No new matches Change -2 Rating 1,140

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.

Relevant matches
4.5
Official ranking percentile
-
Performance
-

4.5 weighted matches against 6 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,438
Repeated-opponent share
0.0%
Network connectivity
87.6%

Classification evidence

Why U16?

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

  • U16 1 event vote Selected outcome

Registrations and outcomes

Lion Cub Jiu Jitsu Competition 5
U16 · Counts
Boys NO-GI / 12 - 14 years old (DAY 1: Saturday) / Yellow & Orange belt / -46 & -50 & -55 kg
  • Competition age 14
  • Registered age: u14
  • Source category: u14
Boys GI / 13 & 14 years old (DAY 1: Saturday) / Orange & Green belt / -46 & -50 & -55 kg
  • Competition age 14
  • Registered age: u16
  • Source category: u16

Classification evidence

Why Orange?

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

  • orange 6 matches in the rating period Selected outcome

Registrations and outcomes

Lion Cub Jiu Jitsu Competition 5
orange · Counts as a match
Boys NO-GI / 12 - 14 years old (DAY 1: Saturday) / Yellow & Orange belt / -46 & -50 & -55 kg
  • Source belt category: orange

4 matches in the rating period

Lion Cub Jiu Jitsu Competition 5
orange · Counts as a match
Boys GI / 13 & 14 years old (DAY 1: Saturday) / Orange & Green belt / -46 & -50 & -55 kg
  • Source belt category: orange

2 matches in the rating period