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Berkay Çakır

GFTeam Academia Braunschweig

W–L
2–9
Won and lost rating-eligible matches in the past 12 months.
Gi
1,168
Rating based on Gi matches in the past 12 months.
No-Gi
1,160
Rating based on No-Gi matches in the past 12 months.
Current form
2–8
Results from the ten most recent rating-eligible matches.
Opponents
8
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
1
Silver
5
Bronze
3
Total medals
9
Events with results
8

Full career record

Wins
7
Losses
16
Matches
23
Win rate
30.4%

Ways of winning

Submission
0
Points
6
Decision
0
Disqualification
0

Personal records

Longest winning streak
3
Longest gold streak
1
Largest recorded points win
14–2

Recent recorded placements

  4. Fennec BJJ Kids Cup Vol.5

    DE Event record 0–1

    • Boys Gi / Teen I (13/14 yrs) / Yellow/Orange (bzw. 1 bis 3 Jahre Training) / Above 65,0 kg

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
8
Distinct events
3

Ways of winning

  • Submission 0 0%
  • Points 2 100%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1168
Record
1–4
Win rate
20%
Submission share
0%

No-Gi

Rating
1160
Record
1–5
Win rate
17%
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
-15
Highest rating in 12 months
1,259
Performance versus expectation
-15.2 pp
Schedule strength
Top 44%
Average opponent rating
1,332
Weighted win rate
19%
Expected win rate
34%
Repeat-opponent share
27%
Effective evidence
8.8
Confidence
88/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 1–10 1–10 across 11 rematches against 5 repeat opponents.

Rivals

Opponent Head-to-head record Matches
Joel Lehfeld 1–2 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
11 0
Record
2–9 Previous month 2–9
Opponents
8 0
Events
3 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 1,240

Rating-period composition

Rating matches
11 0
Record
2–9 Previous month 2–9
Opponents
8 0
Events
3 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 -4 Rating 1,240

Rating-period composition

Rating matches
11 0
Record
2–9 Previous month 2–9
Opponents
8 0
Events
3 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

May 2026 4 new matches Change +7 Rating 1,244

Rating-period composition

Rating matches
11 +4
Record
2–9 Previous month 1–6
Opponents
8 +3
Events
3 +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
May 23, 2026 Marcel Dziubek
NAGA Germany Grappling Championship Teens Gi (Male) / Expert / 80 - 84.9 / 14-15 years
Method Submission 03:56 0–5
Marginal influence -6
Win
May 23, 2026 Jonas Junker
NAGA Germany Grappling Championship Teens Gi (Male) / Expert / 80 - 84.9 / 14-15 years
Method Points 04:00 2–0
Marginal influence +20
Loss
May 23, 2026 Maks Vrhovec
NAGA Germany Grappling Championship Teens No-Gi (Male) / Expert / 80 - 84.9 / 16-17 years
Method Submission 00:27 0–0
Marginal influence -9
Loss
May 23, 2026 Maks Vrhovec
NAGA Germany Grappling Championship Teens No-Gi (Male) / Expert / 80 - 84.9 / 16-17 years
Method Submission 01:38 0–5
Marginal influence -9
April 2026 2 new matches Change -22 Rating 1,237

Rating-period composition

Rating matches
7 +2
Record
1–6 Previous month 1–4
Opponents
5 +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
April 11, 2026 Fidan-Ylli Murtezi
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi Boys Gi (under 16 y.o.) / Green / 14-15 years / -84 kg
Method Decision 05:00 0–0
Marginal influence -8
Loss
April 11, 2026 Fidan-Ylli Murtezi
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi Boys No-Gi (under 16 y.o.) / Orange / 14-15 years / -84 kg
Method Points 04:00 2–4
Marginal influence -13
March 2026 No new matches Change 0 Rating 1,259

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
4 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 1,259

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
4 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 +1 Rating 1,259

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
4 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 1,258

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
4 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 No new matches Change -1 Rating 1,258

Rating-period composition

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

October 2025 5 new matches Change Starting point Rating 1,259

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
October 4, 2025 Leon Fokin
NAGA Europe Grappling Championship Teens No-Gi (Male) / Expert / 70 - 74.9 / 16-17 years
Method Submission 03:41 0–11
Marginal influence -12
Loss
October 4, 2025 Amine Safir
NAGA Europe Grappling Championship Teens No-Gi (Male) / Expert / 70 - 74.9 / 16-17 years
Method Submission 00:31 1–0
Marginal influence -6
Win
October 4, 2025 Oleh Cheban
NAGA Europe Grappling Championship Teens No-Gi (Male) / Expert / 70 - 74.9 / 16-17 years
Method Points 04:00 8–0
Marginal influence +22
Loss
October 4, 2025 Ivan Pashkovich
NAGA Europe Grappling Championship Teens Gi (Male) / Expert / 70 - 74.9 / 16-17 years
Method Submission 00:17 0–0
Marginal influence -13
Loss
October 4, 2025 Leon Fokin
NAGA Europe Grappling Championship Teens Gi (Male) / Expert / 70 - 74.9 / 16-17 years
Method Submission 00:26 0–2
Marginal influence -9
Relevant matches
8.8
Official ranking percentile
-
Performance
15.2 pp below expectation

8.8 weighted matches against 8 different opponents across 3 events

Weighted win rate
18.9%
Expected win rate
34.1%
Average opponent rating
1,332
Repeated-opponent share
27.3%
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 2 event votes Selected outcome

Registrations and outcomes

NAGA Germany Grappling Championship
U18 · Counts
Teens No-Gi (Male) / Expert / 80 - 84.9 / 16-17 years
  • Competition age 16
  • Registered age: u18
  • Source category: u18
Teens Gi (Male) / Expert / 80 - 84.9 / 14-15 years
  • Competition age 16
  • Registered age: u16
  • Source category: u16
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
U18 · Counts
Boys No-Gi (under 16 y.o.) / Orange / 14-15 years / -84 kg
  • Competition age 16
  • Registered age: u16
  • Source category: u16
Boys Gi (under 16 y.o.) / Green / 14-15 years / -84 kg
  • Competition age 16
  • Registered age: u16
  • Source category: u16
Fennec BJJ Kids Cup Gi & NoGi
Does not count
Boys No-Gi (under 16 y.o.) / Green / 14-15 years / -72 kg
  • Competition age 15
  • Registered age: u16
  • Source category: u16
Boys Gi (under 16 y.o.) / Green / 14-15 years / -72 kg
  • Competition age 15
  • Registered age: u16
  • Source category: u16
NAGA Europe Grappling Championship
Does not count
Teens No-Gi (Male) / Expert / 70 - 74.9 / 16-17 years
  • Competition age 15
  • Registered age: u18
  • Source category: u18
Teens Gi (Male) / Expert / 70 - 74.9 / 16-17 years
  • Competition age 15
  • Registered age: u18
  • Source category: u18

Classification evidence

Why ≤ 75 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

  • ≤ 75 kg 1 competition event Selected outcome
  • ≤ 84 kg 1 competition event
  • ≤ 85 kg 1 competition event

Registrations and outcomes

NAGA Germany Grappling Championship
≤ 85 kg · Counts as a competition event
Teens No-Gi (Male) / Expert / 80 - 84.9 / 16-17 years
  • Registered weight class: 80 - 84.9
  • Source competition limit: 80 - 84.9

2 matches in the rating period

NAGA Germany Grappling Championship
≤ 85 kg · Counts as a competition event
Teens Gi (Male) / Expert / 80 - 84.9 / 14-15 years
  • Registered weight class: 80 - 84.9
  • Source competition limit: 80 - 84.9

2 matches in the rating period

Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
≤ 84 kg · Counts as a competition event
Boys No-Gi (under 16 y.o.) / Orange / 14-15 years / -84 kg
  • Registered weight class: -84 kg
  • Source competition limit: -84 kg

1 match in the rating period

Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
≤ 84 kg · Counts as a competition event
Boys Gi (under 16 y.o.) / Green / 14-15 years / -84 kg
  • Registered weight class: -84 kg
  • Source competition limit: -84 kg

1 match in the rating period

Fennec BJJ Kids Cup Gi & NoGi
Does not count
Boys No-Gi (under 16 y.o.) / Green / 14-15 years / -72 kg
  • Registered weight class: -72 kg
  • Source competition limit: -72 kg

No matches in the rating period · no valid weight evidence

Fennec BJJ Kids Cup Gi & NoGi
Does not count
Boys Gi (under 16 y.o.) / Green / 14-15 years / -72 kg
  • Registered weight class: -72 kg
  • Source competition limit: -72 kg

No matches in the rating period · no valid weight evidence

NAGA Europe Grappling Championship
≤ 75 kg · Counts as a competition event
Teens No-Gi (Male) / Expert / 70 - 74.9 / 16-17 years
  • Registered weight class: 70 - 74.9
  • Source competition limit: 70 - 74.9

3 matches in the rating period

NAGA Europe Grappling Championship
≤ 75 kg · Counts as a competition event
Teens Gi (Male) / Expert / 70 - 74.9 / 16-17 years
  • Registered weight class: 70 - 74.9
  • Source competition limit: 70 - 74.9

2 matches in the rating period

Classification evidence

Why Green?

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

  • green 1 match in the rating period Selected outcome
  • orange 1 match in the rating period

Registrations and outcomes

Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
green · Counts as a match
Boys Gi (under 16 y.o.) / Green / 14-15 years / -84 kg
  • Source belt category: green

1 match in the rating period

Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
orange · Counts as a match
Boys No-Gi (under 16 y.o.) / Orange / 14-15 years / -84 kg
  • Source belt category: orange

1 match in the rating period