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Niyazi Koray

Resistencia jiu-jitsu

W–L
1–2
Won and lost rating-eligible matches in the past 12 months.
Gi
1,206
Rating based on Gi matches in the past 12 months.
No-Gi
1,135
Rating based on No-Gi matches in the past 12 months.
Current form
1–2
Results from the ten most recent rating-eligible matches.
Opponents
2
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
0
Silver
2
Bronze
2
Total medals
4
Events with results
3

Full career record

Wins
1
Losses
3
Matches
4
Win rate
25.0%

Ways of winning

Submission
0
Points
1
Decision
0
Disqualification
0

Personal records

Longest winning streak
1

Recent recorded placements

  1. 2026 AGF Antwerp Championships

    BE Event record 0–0

    • Bronze

  2. Grappling Industries BRUSSELS

    BE Event record 1–3

    • Gi Teens / Male / White / 16 - 17 years / +210 lbs
    • No Gi Teens / Male / Beginner (White) / 16 - 17 years / +210 lbs

  3. BRUSSELS OPEN 1 FBJJB RANKING *** ADULT GI & NoGi 20.09.2025

    BE Event record 0–0

    • Silver

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
2
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
1206
Record
1–1
Win rate
50%
Submission share
0%

No-Gi

Rating
1135
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
1,262
Change over 90 days
-
Highest rating in 12 months
1,261
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,293
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
33%
Effective evidence
2.7
Confidence
47/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 0–2 0–2 across 2 rematches against 1 repeat opponents.

Rivals

Opponent Head-to-head record Matches
Anwar El Aamery 0–2 2

Recent tournaments

  1. 2026 AGF Antwerp Championships

    June 13, 2026
    Gi 0–0

  3. BRUSSELS OPEN 1 FBJJB RANKING *** ADULT GI & NoGi 20.09.2025

    September 20, 2025
    No-Gi 0–0

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 1,262

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
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.

July 2026 No new matches Change 0 Rating 1,262

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
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.

June 2026 No new matches Change 0 Rating 1,262

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
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.

May 2026 No new matches Change 0 Rating 1,262

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
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.

April 2026 No new matches Change 0 Rating 1,262

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
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.

March 2026 No new matches Change +1 Rating 1,262

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
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.

February 2026 No new matches Change 0 Rating 1,261

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
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.

January 2026 No new matches Change 0 Rating 1,261

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
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.

December 2025 No new matches Change 0 Rating 1,261

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
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.

November 2025 3 new matches Change Starting point Rating 1,261

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 29, 2025 Anwar El Aamery
Grappling Industries BRUSSELS No Gi Teens / Male / Beginner (White) / 16 - 17 years / +210 lbs
Method Points 04:00 0–9
Marginal influence -15
Loss
November 29, 2025 Anwar El Aamery
Grappling Industries BRUSSELS Gi Teens / Male / White / 16 - 17 years / +210 lbs
Method Submission 01:02 0–6
Marginal influence -15
Win
November 29, 2025 Anas Echikr
Grappling Industries BRUSSELS Gi Teens / Male / White / 16 - 17 years / +210 lbs
Method Points 04:00 9–3
Marginal influence +30
Relevant matches
2.7
Official ranking percentile
-
Performance
-

2.7 weighted matches against 2 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,293
Repeated-opponent share
33.3%
Network connectivity
87.6%

Classification evidence

Why U18?

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

  • U18 1 event vote Selected outcome

Registrations and outcomes

Grappling Industries PARIS
Does not count
No Gi Adult / Male / Beginner (White) / Adult / -200 lbs
  • Competition age 18
Gi Adult / Male / White / Adult / -200 lbs
  • Competition age 18
Grappling Industries AMSTERDAM
Does not count
Gi Adult / Male / White / Adult / -200 lbs
  • Competition age 18
2026 AGF Antwerp Championships
Does not count
Gi Juveniles / Adults / Male / Adult (18+) / White / Medium Heavy (Up to 93.00 kg)
  • Competition age 18
OPEN BRUSSELS 3 FBJJB RANKING ***** ADULT GI & NoGi 09.05.2026
Does not count
Male Gi (16+) / White / Adult / -94,3 kg (Heavy)
  • Competition age 18
NO GI - BELGIAN CHAMPIONSHIP KIDS YOUTH & ADULTS 2026
Does not count
Male NoGi / White / -94,3 kg (Heavy) / Adult
  • Competition age 18
Grappling Industries BRUSSELS
U18 · Counts
No Gi Teens / Male / Beginner (White) / 16 - 17 years / +210 lbs
  • Competition age 17
  • Registered age: u18
  • Source category: u18
Gi Teens / Male / White / 16 - 17 years / +210 lbs
  • Competition age 17
  • Registered age: u18
  • Source category: u18
INTERCLUB GRAPPLING VLAANDEREN Jiu Jitsu - Gi - 18/10
Does not count
Male Gi / White / +94,3 kg (Super & Ultra heavy)
  • Competition age 17
BRUSSELS OPEN 1 FBJJB RANKING *** ADULT GI & NoGi 20.09.2025
Does not count
Male No-Gi / White / Adult / Above 97,0 kg+ (Ultra heavy)
  • Competition age 17

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 3 matches in the rating period Selected outcome

Registrations and outcomes

Grappling Industries BRUSSELS
white · Counts as a match
No Gi Teens / Male / Beginner (White) / 16 - 17 years / +210 lbs
  • Source belt category: white

1 match in the rating period

Grappling Industries BRUSSELS
white · Counts as a match
Gi Teens / Male / White / 16 - 17 years / +210 lbs
  • Source belt category: white

2 matches in the rating period