TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
Language selector
Menu
DE

Hermann Zilberberg

Grappling-Dynamik

W–L
0–4
Won and lost rating-eligible matches in the past 12 months.
Gi
1,088
Rating based on Gi matches in the past 12 months.
No-Gi
-
Rating based on No-Gi matches in the past 12 months.
Current form
0–4
Results from the ten most recent rating-eligible matches.
Opponents
3
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

5
Events
Date Event Result Format Division
2026 AGF Dusseldorf Championships Germany · Gi · 12–13 yo · grey · ≤43.1 kg ; Gi · ≤43.1 kg 0–4 W–L: Win / Loss Gi
  • Place #4
  • Place #4
COLOGNE FALL OPEN 2025 I EUROPEAN CUP Germany 0–0 W–L: Win / Loss Gi
  • Boys Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
2025 AGF Dusseldorf Championships Germany · Gi · 10–11 yo · grey · ≤43.1 kg 2–1 W–L: Win / Loss Gi
  • Gi Kids / Mixed / Pre Teen (10 - 11 yrs) / Gray / Light I (Up to 43.10 kg)
COLOGNE FALL OPEN CHAMPIONSHIP 2024 | European Cup Germany · Gi · U16 · yellow · ≤38 kg 0–2 W–L: Win / Loss Gi
  • Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -38 kg
DÜSSELDORF FALL OPEN CHAMPIONSHIP 2024 I European Cup Germany · Gi · U16 · grey · ≤38 kg 0–2 W–L: Win / Loss Gi
  • Boys Gi (under 16 y.o.) / Grey / 10-11 years / -42 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 0 Rating 1,088

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
3 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 -3 Rating 1,088

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
3 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 +12 Rating 1,091

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
3 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 +1 Rating 1,079

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
3 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 -1 Rating 1,078

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
3 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 1,079

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
3 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 4 new matches · 3 left period Change -143 Rating 1,078

Rating-period composition

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

3 older matches left the 12-month period: 2 won and 1 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.
Loss
February 28, 2026 Muhammad Sakaev
2026 AGF Dusseldorf Championships Gi Kids Challenger / Boys / Regular Challenger / Light I (Up to 43.10 kg)
Method Submission 00:44 0–3
Marginal influence -15
Loss
February 28, 2026 Carlos Aleksej Dubrovin
2026 AGF Dusseldorf Championships Gi Kids Challenger / Boys / Regular Challenger / Light I (Up to 43.10 kg)
Method Points 03:00 5–10
Marginal influence -35
Loss
February 28, 2026 Muhammad Sakaev
2026 AGF Dusseldorf Championships Gi Kids / Boys / Juniors (12 - 13 yrs) / Gray / Light I (Up to 43.10 kg)
Method Submission 00:29 0–2
Marginal influence -15
Loss
February 28, 2026 Adam Umaev
2026 AGF Dusseldorf Championships Gi Kids / Boys / Juniors (12 - 13 yrs) / Gray / Light I (Up to 43.10 kg)
Method Submission 01:18 0–1
Marginal influence -30
January 2026 No new matches Change 0 Rating 1,221

Rating-period composition

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

December 2025 No new matches Change 0 Rating 1,221

Rating-period composition

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

November 2025 No new matches Change 0 Rating 1,221

Rating-period composition

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

October 2025 No new matches · 2 left period Change +15 Rating 1,221

Rating-period composition

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

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.

September 2025 No new matches · 2 left period Change +49 Rating 1,206

Rating-period composition

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

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.

Relevant matches
2.4
Official ranking percentile
-
Performance
-

2.4 weighted matches against 3 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,342
Repeated-opponent share
25.0%
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

2026 AGF Dusseldorf Championships
U14 · Counts
Competition T-shirt / Youth Medium
Gi Kids Challenger / Boys / Regular Challenger / Light I (Up to 43.10 kg)
  • Competition age 13
  • Registered age: u14
  • Source category: u14
Gi Kids / Boys / Juniors (12 - 13 yrs) / Gray / Light I (Up to 43.10 kg)
  • Competition age 13
  • Registered age: u14
  • Source category: u14
COLOGNE FALL OPEN 2025 I EUROPEAN CUP
Does not count
Boys Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
  • Competition age 12
  • Registered age: u14
  • Source category: u14

Classification evidence

Why ≤ 43 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

  • ≤ 43 kg 1 competition event Selected outcome

Registrations and outcomes

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

No matches in the rating period · no valid weight evidence

2026 AGF Dusseldorf Championships
≤ 43 kg · Counts as a competition event
Gi Kids Challenger / Boys / Regular Challenger / Light I (Up to 43.10 kg)
  • Registered weight class: Light I (Up to 43.10 kg)
  • Source competition limit: Light I (Up to 43.10 kg)

2 matches in the rating period

2026 AGF Dusseldorf Championships
≤ 43 kg · Counts as a competition event
Gi Kids / Boys / Juniors (12 - 13 yrs) / Gray / Light I (Up to 43.10 kg)
  • Registered weight class: Light I (Up to 43.10 kg)
  • Source competition limit: Light I (Up to 43.10 kg)

2 matches in the rating period

COLOGNE FALL OPEN 2025 I EUROPEAN CUP
Does not count
Boys Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

No matches in the rating period · no valid weight evidence

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 2 matches in the rating period Selected outcome

Registrations and outcomes

2026 AGF Dusseldorf Championships
grey · Counts as a match
Gi Kids / Boys / Juniors (12 - 13 yrs) / Gray / Light I (Up to 43.10 kg)
  • Source belt category: grey

2 matches in the rating period