TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
Language selector
Menu
DE

Oskar David Zampich

United kings jiu jitsu germany

W–L
2–2
Won and lost rating-eligible matches in the past 12 months.
Gi
1,199
Rating based on Gi matches in the past 12 months.
No-Gi
1,193
Rating based on No-Gi matches in the past 12 months.
Current form
2–2
Results from the ten most recent rating-eligible matches.
Opponents
2
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

5
Indexed competition matches
Date Opponent Result Event Division
2025-11-22 Jan Wiegand
Loss
Grappling Industries BERLIN No-Gi · No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
2025-11-22 Djamil Chaaban
Win
Grappling Industries BERLIN No-Gi · No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
2025-11-22 Hieu Nguyen
Win
Grappling Industries BERLIN No-Gi · No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
2025-11-22 Hieu Nguyen
Loss
Grappling Industries BERLIN Gi · Gi Kids / White / 14 - 15 years (Male) / -155 lbs
2025-11-22 Jan Wiegand
Win
Grappling Industries BERLIN Gi · Gi Kids / White / 14 - 15 years (Male) / -155 lbs

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 +4 Rating 1,282

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
2 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 0 Rating 1,278

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
2 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 +1 Rating 1,278

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
2 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 -5 Rating 1,277

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
2 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 0 Rating 1,282

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
2 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 1,282

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
2 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 1,283

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
2 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 1,283

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
2 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 1,284

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
2 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 4 new matches Change Starting point Rating 1,284

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
November 22, 2025 Jan Wiegand
Grappling Industries BERLIN No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
Method Points 04:00 0–2
Marginal influence -20
Win
November 22, 2025 Hieu Nguyen
Grappling Industries BERLIN No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
Method Points 04:00 6–2
Marginal influence +14
Loss
November 22, 2025 Hieu Nguyen
Grappling Industries BERLIN Gi Kids / White / 14 - 15 years (Male) / -155 lbs
Method Submission 03:17 7–11
Marginal influence -19
Win
November 22, 2025 Jan Wiegand
Grappling Industries BERLIN Gi Kids / White / 14 - 15 years (Male) / -155 lbs
Method Points 04:00 12–2
Marginal influence +18
Relevant matches
3.4
Official ranking percentile
-
Performance
-

3.4 weighted matches against 2 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,284
Repeated-opponent share
50.0%
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 1 event vote Selected outcome

Registrations and outcomes

Grappling Industries BERLIN
U18 · Counts
Gi Kids / White / 14 - 15 years (Male) / -155 lbs
  • Competition age 15
  • Registered age: u16
  • Source category: u16
No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
  • Competition age 15
  • Registered age: u16
  • Source category: u16

Classification evidence

Why ≤ 70 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

  • ≤ 70 kg 1 competition event Selected outcome

Registrations and outcomes

Grappling Industries BERLIN
≤ 70 kg · Counts as a competition event
Gi Kids / White / 14 - 15 years (Male) / -155 lbs
  • Registered weight class: -155 lbs
  • Source competition limit: -155 lbs

2 matches in the rating period

Grappling Industries BERLIN
≤ 70 kg · Counts as a competition event
No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
  • Registered weight class: -155 lbs
  • Source competition limit: -155 lbs

2 matches in the rating period

Classification evidence

Why White?

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

  • white 4 matches in the rating period Selected outcome

Registrations and outcomes

Grappling Industries BERLIN
white · Counts as a match
No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
  • Source belt category: white

2 matches in the rating period

Grappling Industries BERLIN
white · Counts as a match
Gi Kids / White / 14 - 15 years (Male) / -155 lbs
  • Source belt category: white

2 matches in the rating period