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Muhammad Abdurrahman

ZR TEAM X-FIGHTS HANNOVER

W–L
8–2
Won and lost rating-eligible matches in the past 12 months.
Gi
1,419
Rating based on Gi matches in the past 12 months.
No-Gi
1,298
Rating based on No-Gi matches in the past 12 months.
Current form
8–2
Results from the ten most recent rating-eligible matches.
Opponents
8
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

9
Events
Date Event Result Format Division
Flanders Open 2026 Belgium · Gi · U12 · ≤36 kg ; Gi · U12 · ≤40 kg 4–1 W–L: Win / Loss Gi
  • Youth Jiu-Jitsu BJJ MALE / U12 / -36 kg / ALL BELTS
  • Youth Jiu-Jitsu BJJ MALE / U12 / -40 kg / ALL BELTS
HANNOVER WINTER OPEN 2025 I EUROPEAN CUP Germany · Gi · U16 · yellow · ≤42 kg ; No-Gi · U16 · yellow · ≤42 kg 1–1 W–L: Win / Loss GiNo-Gi
  • Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -42 kg
  • Boys No-Gi (under 16 y.o.) / Yellow / 10-11 years / -42 kg
ILLCS Germany Winter 2025 Germany · Gi · 10–13 yo · ≤13/34 kg 4–0 W–L: Win / Loss Gi
  • Kids 10-13 / -34 kg
Fennec BJJ Kids Cup Gi & NoGi Germany · Gi · U16 · grey · ≤38 kg ; No-Gi · U16 · grey · ≤38 kg 4–1 W–L: Win / Loss GiNo-Gi
  • Boys Gi (under 16 y.o.) / Grey / 10-11 years / -38 kg
  • Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -38 kg
King Tatami - BJJ Gi Kids Pro Germany · Gi · 10–11 yo · ≤34 kg 4–0 W–L: Win / Loss Gi
  • Boys Gi / 10-11 Jahre/Years / -34 kg
GERMAN NATIONAL KIDS OPEN CHAMPIONSHIP 2025 Germany · Gi · U16 · grey · ≤34 kg ; No-Gi · U16 · grey · ≤34 kg 7–1 W–L: Win / Loss GiNo-Gi
  • Boys Gi (under 16 y.o.) / Grey / 10-11 years / -34 kg
  • Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -34 kg
HANNOVER SPRING OPEN 2025 I EUROPEAN CUP Germany · Gi · U16 · grey/yellow · ≤34 kg ; No-Gi · U16 · grey · ≤38 kg 6–2 W–L: Win / Loss GiNo-Gi
  • Boys Gi (under 16 y.o.) / Grey/Yellow / 10-11 years / -34 kg
  • Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -38 kg
FRANKFURT WINTER OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP Germany · Gi · U16 · grey · ≤34 kg ; No-Gi · U16 · grey · ≤34 kg 4–0 W–L: Win / Loss GiNo-Gi
  • Boys Gi (under 16 y.o.) / Grey / 10-11 years / -34 kg
  • Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -34 kg
King Tatami - BJJ Gi Kids Pro Germany · Gi · 10–11 yo · ≤34 kg 2–0 W–L: Win / Loss Gi
  • Boys Gi / 10-11 Jahre/Years / -34 kg

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 -8 Rating 1,448

Rating-period composition

Rating matches
10 0
Record
8–2 Previous month 8–2
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 1,456

Rating-period composition

Rating matches
10 0
Record
8–2 Previous month 8–2
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 · 8 left period Change -80 Rating 1,456

Rating-period composition

Rating matches
10 -8
Record
8–2 Previous month 15–3
Opponents
8 -3
Events
3 -1

8 older matches left the 12-month period: 7 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

May 2026 No new matches Change +3 Rating 1,536

Rating-period composition

Rating matches
18 0
Record
15–3 Previous month 15–3
Opponents
11 0
Events
4 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 · 8 left period Change -25 Rating 1,533

Rating-period composition

Rating matches
18 -8
Record
15–3 Previous month 21–5
Opponents
11 -4
Events
4 -1

8 older matches left the 12-month period: 6 won and 2 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

March 2026 No new matches Change 0 Rating 1,558

Rating-period composition

Rating matches
26 0
Record
21–5 Previous month 21–5
Opponents
15 0
Events
5 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 · 6 left period Change -55 Rating 1,558

Rating-period composition

Rating matches
26 -6
Record
21–5 Previous month 27–5
Opponents
15 -3
Events
5 -2

6 older matches left the 12-month period: 6 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

January 2026 No new matches Change -5 Rating 1,613

Rating-period composition

Rating matches
32 0
Record
27–5 Previous month 27–5
Opponents
18 0
Events
7 0

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

December 2025 2 new matches Change -11 Rating 1,618

Rating-period composition

Rating matches
32 +2
Record
27–5 Previous month 26–4
Opponents
18 +1
Events
7 +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
December 20, 2025 Martin Silin
HANNOVER WINTER OPEN 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -42 kg
Method Points 03:00 2–3
Marginal influence -30
Win
December 20, 2025 Martin Silin
HANNOVER WINTER OPEN 2025 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / Yellow / 10-11 years / -42 kg
Method Submission 00:06 0–0
Marginal influence +8
November 2025 4 new matches Change +11 Rating 1,629

Rating-period composition

Rating matches
30 +4
Record
26–4 Previous month 23–3
Opponents
17 +2
Events
6 +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
November 22, 2025 Benedikt Großmann
Fennec BJJ Kids Cup Gi & NoGi Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -38 kg
Method Submission 00:27 6–0
Marginal influence 0
Loss
November 22, 2025 Bruce Broekhuizen
Fennec BJJ Kids Cup Gi & NoGi Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -38 kg
Method Points 0–2
Marginal influence -9
Win
November 22, 2025 Mads Poppelbaum
Fennec BJJ Kids Cup Gi & NoGi Boys Gi (under 16 y.o.) / Grey / 10-11 years / -38 kg
Method Submission 00:14 0–0
Marginal influence +15
Win
November 22, 2025 Bruce Broekhuizen
Fennec BJJ Kids Cup Gi & NoGi Boys Gi (under 16 y.o.) / Grey / 10-11 years / -38 kg
Method Decision 03:00 0–0
Marginal influence +34
October 2025 No new matches Change -1 Rating 1,618

Rating-period composition

Rating matches
26 0
Record
23–3 Previous month 23–3
Opponents
15 0
Events
5 0

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

September 2025 4 new matches Change +30 Rating 1,619

Rating-period composition

Rating matches
26 +4
Record
23–3 Previous month 19–3
Opponents
15 +3
Events
5 +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
September 27, 2025 Uroš Vučković
King Tatami - BJJ Gi Kids Pro Boys Gi / 10-11 Jahre/Years / -34 kg
Method Submission 00:36 4–0
Marginal influence +12
Win
September 27, 2025 Leon Erkibaev
King Tatami - BJJ Gi Kids Pro Boys Gi / 10-11 Jahre/Years / -34 kg
Method Submission 00:21 0–0
Marginal influence +19
Win
September 27, 2025 David Khudoyan
King Tatami - BJJ Gi Kids Pro Boys Gi / 10-11 Jahre/Years / -34 kg
Method Submission 00:32 0–0
Marginal influence +12
Win
September 27, 2025 Ömer Gündüz
King Tatami - BJJ Gi Kids Pro Boys Gi / 10-11 Jahre/Years / -34 kg
Method Submission 00:22 0–0
Marginal influence +8
Relevant matches
8.2
Official ranking percentile
Top 17%
Performance
34.1 pp above expectation

8.2 weighted matches against 8 different opponents across 3 events

Weighted win rate
78.1%
Expected win rate
44.0%
Average opponent rating
1,363
Repeated-opponent share
20.0%
Network connectivity
87.6%

Classification evidence

Why U12?

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

  • U12 1 event vote Selected outcome

Registrations and outcomes

Flanders Open 2026
U12 · Counts
Youth Jiu-Jitsu BJJ MALE / U12 / -40 kg / ALL BELTS
  • Competition age 11
  • Registered age: u12
  • Source category: u12
Youth Jiu-Jitsu BJJ MALE / U12 / -36 kg / ALL BELTS
  • Competition age 11
  • Registered age: u12
  • Source category: u12
HANNOVER WINTER OPEN 2025 I EUROPEAN CUP
Does not count
Boys No-Gi (under 16 y.o.) / Yellow / 10-11 years / -42 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -42 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
ILLCS Germany Winter 2025
Does not count
Kids 10-13 / -34 kg
  • Competition age 10
Fennec BJJ Kids Cup Gi & NoGi
Does not count
Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -38 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Boys Gi (under 16 y.o.) / Grey / 10-11 years / -38 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
King Tatami - BJJ Gi Kids Pro
Does not count
Boys Gi / 10-11 Jahre/Years / -34 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12

Classification evidence

Why ≤ 34 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

  • ≤ 34 kg 1 competition event Selected outcome
  • ≤ 38 kg 1 competition event
  • ≤ 42 kg 1 competition event

Registrations and outcomes

Flanders Open 2026
≤ 40 kg · Does not count
Youth Jiu-Jitsu BJJ MALE / U12 / -40 kg / ALL BELTS
  • Registered weight class: -40 kg
  • Source competition limit: -40 kg

3 matches in the rating period · conflicting upper weight limits make this event ambiguous

Flanders Open 2026
≤ 36 kg · Does not count
Youth Jiu-Jitsu BJJ MALE / U12 / -36 kg / ALL BELTS
  • Registered weight class: -36 kg
  • Source competition limit: -36 kg

2 matches in the rating period · conflicting upper weight limits make this event ambiguous

HANNOVER WINTER OPEN 2025 I EUROPEAN CUP
≤ 42 kg · Counts as a competition event
Boys No-Gi (under 16 y.o.) / Yellow / 10-11 years / -42 kg
  • Registered weight class: -42 kg
  • Source competition limit: -42 kg

1 match in the rating period

HANNOVER WINTER OPEN 2025 I EUROPEAN CUP
≤ 42 kg · Counts as a competition event
Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -42 kg
  • Registered weight class: -42 kg
  • Source competition limit: -42 kg

1 match in the rating period

ILLCS Germany Winter 2025
≤ 34 kg · Counts as a competition event
Kids 10-13 / -34 kg
  • Registered weight class: -34 kg
  • Source competition limit: -34 kg

3 matches in the rating period

Fennec BJJ Kids Cup Gi & NoGi
≤ 38 kg · Counts as a competition event
Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -38 kg
  • Registered weight class: -38 kg
  • Source competition limit: -38 kg

2 matches in the rating period

Fennec BJJ Kids Cup Gi & NoGi
≤ 38 kg · Counts as a competition event
Boys Gi (under 16 y.o.) / Grey / 10-11 years / -38 kg
  • Registered weight class: -38 kg
  • Source competition limit: -38 kg

2 matches in the rating period

King Tatami - BJJ Gi Kids Pro
≤ 34 kg · Does not count
Boys Gi / 10-11 Jahre/Years / -34 kg
  • Registered weight class: -34 kg
  • Source competition limit: -34 kg

4 matches in the rating period · outside the three most recent unambiguous events

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 4 matches in the rating period Selected outcome
  • yellow 2 matches in the rating period

Registrations and outcomes

HANNOVER WINTER OPEN 2025 I EUROPEAN CUP
yellow · Counts as a match
Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -42 kg
  • Source belt category: yellow

1 match in the rating period

HANNOVER WINTER OPEN 2025 I EUROPEAN CUP
yellow · Counts as a match
Boys No-Gi (under 16 y.o.) / Yellow / 10-11 years / -42 kg
  • Source belt category: yellow

1 match in the rating period

Fennec BJJ Kids Cup Gi & NoGi
grey · Counts as a match
Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -38 kg
  • Source belt category: grey

2 matches in the rating period

Fennec BJJ Kids Cup Gi & NoGi
grey · Counts as a match
Boys Gi (under 16 y.o.) / Grey / 10-11 years / -38 kg
  • Source belt category: grey

2 matches in the rating period