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UA

Nazar Kozlov

Gracie Jiu-Jitsu Alkmaar

W–L
4–1
Won and lost rating-eligible matches in the past 12 months.
Gi
1,169
Rating based on Gi matches in the past 12 months.
No-Gi
1,309
Rating based on No-Gi matches in the past 12 months.
Current form
4–1
Results from the ten most recent rating-eligible matches.
Opponents
5
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
1
Silver
0
Bronze
1
Total medals
2
Events with results
4

Full career record

Wins
6
Losses
7
Matches
13
Win rate
46.2%

Ways of winning

Submission
2
Points
1
Decision
2
Disqualification
0

Personal records

Longest winning streak
3
Longest submission streak
2
Longest gold streak
1

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
1
Unique opponents
5
Distinct events
2

Ways of winning

  • Submission 2 50%
  • Points 0 0%
  • Decision 2 50%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1169
Record
1–1
Win rate
50%
Submission share
0%

No-Gi

Rating
1309
Record
3–0
Win rate
100%
Submission share
67%

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
1,335
Change over 90 days
+23
Highest rating in 12 months
1,340
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,279
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
0%
Effective evidence
4
Confidence
68/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

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

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #780 Eymen Ali · 2025 NO GI International Veluwe Open Jiu Jitsu Championship Dec 0–0
  2. #809 Frits Van Est · 2025 NO GI International Veluwe Open Jiu Jitsu Championship Sub 02:19 6–0
  3. #847 Alexander Klak · 2025 NO GI International Veluwe Open Jiu Jitsu Championship Sub 00:52 0–0
  4. #1410 Yassine Bachri · Nijmegen Open BJJ 2026 Dec 0–0

Full career

  1. #780 Eymen Ali · 2025 NO GI International Veluwe Open Jiu Jitsu Championship Dec 0–0
  2. #809 Frits Van Est · 2025 NO GI International Veluwe Open Jiu Jitsu Championship Sub 02:19 6–0
  3. #847 Alexander Klak · 2025 NO GI International Veluwe Open Jiu Jitsu Championship Sub 00:52 0–0
  4. #1410 Yassine Bachri · Nijmegen Open BJJ 2026 Dec 0–0

Rivals

Opponent Head-to-head record Matches
Bram Van Soest 1–1 2

Around this athlete

Athlete Rank Rating
Helen Probst #715 1,336
Nazar Kozlov #716 1,335
Anis Boukhzar #717 1,335

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 -5 Rating 1,335

Rating-period composition

Rating matches
5 0
Record
4–1 Previous month 4–1
Opponents
5 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.

July 2026 No new matches Change 0 Rating 1,340

Rating-period composition

Rating matches
5 0
Record
4–1 Previous month 4–1
Opponents
5 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.

June 2026 No new matches Change 0 Rating 1,340

Rating-period composition

Rating matches
5 0
Record
4–1 Previous month 4–1
Opponents
5 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.

May 2026 2 new matches · 4 left period Change +38 Rating 1,340

Rating-period composition

Rating matches
5 -2
Record
4–1 Previous month 4–3
Opponents
5 -2
Events
2 0

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

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
May 30, 2026 Yassine Bachri
Nijmegen Open BJJ 2026 Kids / 10 - 12 years boys / Grey / -50 & -55kg
Method Decision 03:00 0–0
Marginal influence -15
Loss
May 30, 2026 Sandro Rubino
Nijmegen Open BJJ 2026 Kids / 10 - 12 years boys / Grey / -50 & -55kg
Method Points 03:00 2–7
Marginal influence -32
April 2026 No new matches Change -6 Rating 1,302

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
7 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 1,308

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
7 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 -4 Rating 1,307

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
7 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 -2 Rating 1,311

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
7 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 1,313

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
7 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 -4 Rating 1,313

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
7 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 3 new matches · 2 left period Change +171 Rating 1,317

Rating-period composition

Rating matches
7 +1
Record
4–3 Previous month 1–5
Opponents
7 +1
Events
2 0

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.

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 18, 2025 Eymen Ali
2025 NO GI International Veluwe Open Jiu Jitsu Championship Kids No-gi / 10 - 11 years boys / Grey & Yellow / -46 & -50 kg
Method Decision 03:00 0–0
Marginal influence +31
Win
October 18, 2025 Alexander Klak
2025 NO GI International Veluwe Open Jiu Jitsu Championship Kids No-gi / 10 - 11 years boys / Grey & Yellow / -46 & -50 kg
Method Submission 00:52 0–0
Marginal influence +21
Win
October 18, 2025 Frits Van Est
2025 NO GI International Veluwe Open Jiu Jitsu Championship Kids No-gi / 10 - 11 years boys / Grey & Yellow / -46 & -50 kg
Method Submission 02:19 6–0
Marginal influence +26
September 2025 No new matches Change +4 Rating 1,146

Rating-period composition

Rating matches
6 0
Record
1–5 Previous month 1–5
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.

Relevant matches
4
Official ranking percentile
Top 48%
Performance
-

4 weighted matches against 5 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,279
Repeated-opponent share
0.0%
Network connectivity
87.6%

Classification evidence

Why U14?

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

  • U14 1 event vote Selected outcome

Registrations and outcomes

Nijmegen Open BJJ 2026
U14 · Counts
Kids / 10 - 12 years boys / Grey / -50 & -55kg
  • Competition age 12
  • Registered age: u12
  • Source category: u12
2025 NO GI International Veluwe Open Jiu Jitsu Championship
Does not count
Kids No-gi / 10 - 11 years boys / Grey & Yellow / -46 & -50 kg
  • Competition age 11
  • Registered age: u12
  • Source category: u12

Classification evidence

Why ≤ 50 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

  • ≤ 50 kg 2 competition events Selected outcome

Registrations and outcomes

Nijmegen Open BJJ 2026
≤ 50 kg · Counts as a competition event
Kids / 10 - 12 years boys / Grey / -50 & -55kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

2 matches in the rating period

2025 NO GI International Veluwe Open Jiu Jitsu Championship
≤ 50 kg · Counts as a competition event
Kids No-gi / 10 - 11 years boys / Grey & Yellow / -46 & -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 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 5 matches in the rating period Selected outcome

Registrations and outcomes

Nijmegen Open BJJ 2026
grey · Counts as a match
Kids / 10 - 12 years boys / Grey / -50 & -55kg
  • Source belt category: grey

2 matches in the rating period

2025 NO GI International Veluwe Open Jiu Jitsu Championship
grey · Counts as a match
Kids No-gi / 10 - 11 years boys / Grey & Yellow / -46 & -50 kg
  • Source belt category: grey

3 matches in the rating period