TopBJJ Index Youth
Language selector
Menu
TR

Hamza Mercan

Gracie Barra Sternschanze

W–L
5–9
Won and lost rating-eligible matches in the past 12 months.
Gi
1,186
Rating based on Gi matches in the past 12 months.
No-Gi
1,202
Rating based on No-Gi matches in the past 12 months.
Current form
4–6
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
2
Bronze
0
Total medals
3
Events with results
3

Full career record

Wins
5
Losses
9
Matches
14
Win rate
35.7%

Ways of winning

Submission
4
Points
1
Decision
0
Disqualification
0

Personal records

Longest winning streak
2
Longest submission streak
2

Recent recorded placements

  1. 2026 AGF Bremen Championships

    DE Event record 2–3

    • Gi Kids / Mixed / Tiny Kids (4 - 5 yrs) / Gray / Rooster II (Up to 20.40 kg)
    • No Gi Kids / Mixed / Tiny Kids (4 - 5 yrs) / Gray / Rooster II (Up to 20.40 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 4 80%
  • Points 1 20%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1186
Record
2–5
Win rate
29%
Submission share
100%

No-Gi

Rating
1202
Record
3–4
Win rate
43%
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
1,265
Change over 90 days
+22
Highest rating in 12 months
1,265
Performance versus expectation
-9.5 pp
Schedule strength
Top 74%
Average opponent rating
1,286
Weighted win rate
36%
Expected win rate
46%
Repeat-opponent share
43%
Effective evidence
8.8
Confidence
88/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 2–6 2–6 across 8 rematches against 2 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #1169 Dua Bunjaku · 2026 AGF Bremen Championships Sub 00:59 0–0 Earlier · Sub 00:49 0–0 February 21, 2026 · 2026 AGF Bremen Championships
  2. #1293 André Comesaña Takács · HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Sub 00:29 0–0

Full career

  1. #1169 Dua Bunjaku · 2026 AGF Bremen Championships Sub 00:59 0–0 Earlier · Sub 00:49 0–0 February 21, 2026 · 2026 AGF Bremen Championships
  2. #1293 André Comesaña Takács · HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Sub 00:29 0–0

Rivals

Opponent Head-to-head record Matches
Dua Bunjaku 2–3 5

Around this athlete

Athlete Rank Rating
Alexander Morgunov #1040 1,266
Hamza Mercan #1041 1,265
Pierre Ballo #1042 1,265

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 0 Rating 1,265

Rating-period composition

Rating matches
14 0
Record
5–9 Previous month 5–9
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 3 new matches Change +3 Rating 1,265

Rating-period composition

Rating matches
14 +3
Record
5–9 Previous month 4–7
Opponents
8 +1
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
2026 AGF Hamburg Summer Open Gi Kids / Boys / Tiny Kids (4 - 5 yrs) / Gray / Rooster III (Up to 24.94 kg)
Method Submission 00:36 0–3
Marginal influence -8
Win
2026 AGF Hamburg Summer Open Gi Kids / Boys / Tiny Kids (4 - 5 yrs) / Gray / Rooster III (Up to 24.94 kg)
Method Submission 0–0
Marginal influence +15
Loss
2026 AGF Hamburg Summer Open Gi Kids / Boys / Tiny Kids (4 - 5 yrs) / Gray / Rooster III (Up to 24.94 kg)
Method Points 02:00 0–13
Marginal influence -8
June 2026 No new matches Change 0 Rating 1,262

Rating-period composition

Rating matches
11 0
Record
4–7 Previous month 4–7
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.

May 2026 6 new matches Change +19 Rating 1,262

Rating-period composition

Rating matches
11 +6
Record
4–7 Previous month 2–3
Opponents
7 +6
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
HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / Grey / 4-5 years / -21 kg
Method Submission 01:43 0–2
Marginal influence -12
Loss
May 2, 2026 Noah Ammar Ahlf
HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / Grey / 4-5 years / -21 kg
Method Submission 02:34 0–23
Marginal influence -9
Win
HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / Grey / 4-5 years / -21 kg
Method Points 03:00 12–6
Marginal influence +13
Loss
HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / Grey / 4-5 years / -21 kg
Method Submission 00:42 0–10
Marginal influence -4
HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 4-5 years / -21 kg
Method Submission 00:29 0–0
Marginal influence +14
Loss
May 2, 2026 Miraç Doğru
HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 4-5 years / -21 kg
Method Submission 01:10 0–9
Marginal influence -10
April 2026 No new matches Change 0 Rating 1,243

Rating-period composition

Rating matches
5 0
Record
2–3 Previous month 2–3
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.

March 2026 No new matches Change 0 Rating 1,243

Rating-period composition

Rating matches
5 0
Record
2–3 Previous month 2–3
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.

February 2026 5 new matches Change Starting point Rating 1,243

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
February 21, 2026 Dua Bunjaku
2026 AGF Bremen Championships No Gi Kids / Mixed / Tiny Kids (4 - 5 yrs) / Gray / Rooster II (Up to 20.40 kg)
Method Submission 00:59 0–0
Marginal influence +9
Win
February 21, 2026 Dua Bunjaku
2026 AGF Bremen Championships No Gi Kids / Mixed / Tiny Kids (4 - 5 yrs) / Gray / Rooster II (Up to 20.40 kg)
Method Submission 00:49 0–0
Marginal influence +9
Loss
February 21, 2026 Dua Bunjaku
2026 AGF Bremen Championships No Gi Kids / Mixed / Tiny Kids (4 - 5 yrs) / Gray / Rooster II (Up to 20.40 kg)
Method Decision 02:00 0–0
Marginal influence -10
Loss
February 21, 2026 Dua Bunjaku
2026 AGF Bremen Championships Gi Kids / Mixed / Tiny Kids (4 - 5 yrs) / Gray / Rooster II (Up to 20.40 kg)
Method Points 02:00 0–5
Marginal influence -14
Loss
February 21, 2026 Dua Bunjaku
2026 AGF Bremen Championships Gi Kids / Mixed / Tiny Kids (4 - 5 yrs) / Gray / Rooster II (Up to 20.40 kg)
Method Submission 01:28 0–6
Marginal influence -14
Relevant matches
8.8
Official ranking percentile
Top 70%
Performance
9.5 pp below expectation

8.8 weighted matches against 8 different opponents across 3 events

Weighted win rate
36.3%
Expected win rate
45.8%
Average opponent rating
1,286
Repeated-opponent share
42.9%
Network connectivity
87.6%

Classification evidence

Why U8?

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

  • U8 5 event votes Selected outcome

Registrations and outcomes

Grappling Industries HAMBURG
U8 · Counts
No Gi Kids / 4 - 5 years / Intermediate (Grey) / -55 lbs
  • Competition age 6
  • Registered age: u8
  • Source category: u8
Gi Kids / 4 - 5 years / Grey / -55 lbs
  • Competition age 6
  • Registered age: u8
  • Source category: u8
2026 AGF Hamburg Summer Open
U8 · Counts
Competition T-shirt / Youth Medium
Gi Kids / Boys / Tiny Kids (4 - 5 yrs) / Gray / Rooster III (Up to 24.94 kg)
  • Competition age 6
  • Registered age: u8
  • Source category: u8
BERLIN OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
U8 · Counts
Boys No-Gi (under 16 y.o.) / Grey / 4-5 years / -24 kg
  • Competition age 6
  • Registered age: u8
  • Source category: u8
Boys Gi (under 16 y.o.) / Grey / 4-5 years / -24 kg
  • Competition age 6
  • Registered age: u8
  • Source category: u8
HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
U8 · Counts
Boys No-Gi (under 16 y.o.) / Grey / 4-5 years / -21 kg
  • Competition age 6
  • Registered age: u8
  • Source category: u8
Boys Gi (under 16 y.o.) / Grey / 4-5 years / -21 kg
  • Competition age 6
  • Registered age: u8
  • Source category: u8
2026 AGF Bremen Championships
U8 · Counts
Competition T-shirt / Youth Medium
No Gi Kids / Mixed / Tiny Kids (4 - 5 yrs) / Gray / Rooster II (Up to 20.40 kg)
  • Competition age 6
  • Registered age: u8
  • Source category: u8
Gi Kids / Mixed / Tiny Kids (4 - 5 yrs) / Gray / Rooster II (Up to 20.40 kg)
  • Competition age 6
  • Registered age: u8
  • Source category: u8

Classification evidence

Why ≤ 20 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

  • ≤ 20 kg 1 competition event Selected outcome
  • ≤ 21 kg 1 competition event
  • ≤ 25 kg 1 competition event

Registrations and outcomes

Grappling Industries HAMBURG
Does not count
No Gi Kids / 4 - 5 years / Intermediate (Grey) / -55 lbs
  • Registered weight class: -55 lbs
  • Source competition limit: -55 lbs

No matches in the rating period · no valid weight evidence

Grappling Industries HAMBURG
Does not count
Gi Kids / 4 - 5 years / Grey / -55 lbs
  • Registered weight class: -55 lbs
  • Source competition limit: -55 lbs

No matches in the rating period · no valid weight evidence

2026 AGF Hamburg Summer Open
Does not count
Competition T-shirt / Youth Medium

No matches in the rating period · no valid weight evidence

2026 AGF Hamburg Summer Open
≤ 25 kg · Counts as a competition event
Gi Kids / Boys / Tiny Kids (4 - 5 yrs) / Gray / Rooster III (Up to 24.94 kg)
  • Registered weight class: Rooster III (Up to 24.94 kg)
  • Source competition limit: Rooster III (Up to 24.94 kg)

3 matches in the rating period

BERLIN OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
Does not count
Boys No-Gi (under 16 y.o.) / Grey / 4-5 years / -24 kg
  • Registered weight class: -24 kg
  • Source competition limit: -24 kg

No matches in the rating period · no valid weight evidence

BERLIN OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
Does not count
Boys Gi (under 16 y.o.) / Grey / 4-5 years / -24 kg
  • Registered weight class: -24 kg
  • Source competition limit: -24 kg

No matches in the rating period · no valid weight evidence

HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
≤ 21 kg · Counts as a competition event
Boys No-Gi (under 16 y.o.) / Grey / 4-5 years / -21 kg
  • Registered weight class: -21 kg
  • Source competition limit: -21 kg

4 matches in the rating period

HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
≤ 21 kg · Counts as a competition event
Boys Gi (under 16 y.o.) / Grey / 4-5 years / -21 kg
  • Registered weight class: -21 kg
  • Source competition limit: -21 kg

2 matches in the rating period

2026 AGF Bremen Championships
Does not count
Competition T-shirt / Youth Medium

No matches in the rating period · no valid weight evidence

2026 AGF Bremen Championships
≤ 20 kg · Counts as a competition event
No Gi Kids / Mixed / Tiny Kids (4 - 5 yrs) / Gray / Rooster II (Up to 20.40 kg)
  • Registered weight class: Rooster II (Up to 20.40 kg)
  • Source competition limit: Rooster II (Up to 20.40 kg)

3 matches in the rating period

2026 AGF Bremen Championships
≤ 20 kg · Counts as a competition event
Gi Kids / Mixed / Tiny Kids (4 - 5 yrs) / Gray / Rooster II (Up to 20.40 kg)
  • Registered weight class: Rooster II (Up to 20.40 kg)
  • Source competition limit: Rooster II (Up to 20.40 kg)

2 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 11 matches in the rating period Selected outcome
  • white 3 matches in the rating period

Registrations and outcomes

2026 AGF Hamburg Summer Open
white · Counts as a match
Gi Kids / Boys / Tiny Kids (4 - 5 yrs) / Gray / Rooster III (Up to 24.94 kg)
  • Source belt category: white

3 matches in the rating period

HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
grey · Counts as a match
Boys No-Gi (under 16 y.o.) / Grey / 4-5 years / -21 kg
  • Source belt category: grey

4 matches in the rating period

HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
grey · Counts as a match
Boys Gi (under 16 y.o.) / Grey / 4-5 years / -21 kg
  • Source belt category: grey

2 matches in the rating period

2026 AGF Bremen Championships
grey · Counts as a match
No Gi Kids / Mixed / Tiny Kids (4 - 5 yrs) / Gray / Rooster II (Up to 20.40 kg)
  • Source belt category: grey

3 matches in the rating period

2026 AGF Bremen Championships
grey · Counts as a match
Gi Kids / Mixed / Tiny Kids (4 - 5 yrs) / Gray / Rooster II (Up to 20.40 kg)
  • Source belt category: grey

2 matches in the rating period