TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
Language selector
Menu
PL

Wiktor Herma

Unity Team - Copacabana

W–L
4–3
Won and lost rating-eligible matches in the past 12 months.
Gi
1,299
Rating based on Gi matches in the past 12 months.
No-Gi
1,205
Rating based on No-Gi matches in the past 12 months.
Current form
4–3
Results from the ten most recent rating-eligible matches.
Opponents
6
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
1
Silver
1
Bronze
0
Total medals
2
Events with results
2

Full career record

Wins
4
Losses
3
Matches
7
Win rate
57.1%

Ways of winning

Submission
0
Points
4
Decision
0
Disqualification
0

Personal records

Longest winning streak
3

Recent recorded placements

  1. Züri Kids Cup 2025

    CH Event record 3–1

    • Boys GI / Grey / Kids 3 (2016-2017) / 27kg-30kg (heavy)
    • Boys NO-GI / Grey / Kids 3 (2016-2017) / 27kg-30kg (heavy)

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
6
Distinct events
2

Ways of winning

  • Submission 0 0%
  • Points 4 100%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1299
Record
2–0
Win rate
100%
Submission share
0%

No-Gi

Rating
1205
Record
2–3
Win rate
40%
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
1,300
Change over 90 days
-
Highest rating in 12 months
1,295
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,242
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
14%
Effective evidence
5.6
Confidence
74/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 2–0 2–0 across 2 rematches against 1 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #928 Leonardo Faria Gloder · Züri Kids Cup 2025 Pts 2–1

Full career

  1. #928 Leonardo Faria Gloder · Züri Kids Cup 2025 Pts 2–1

Rivals

Opponent Head-to-head record Matches
Flynn Mahlstein 2–0 2

Around this athlete

Athlete Rank Rating
Arlo Payne #1822 1,300
Wiktor Herma #1823 1,300
Adam Berouijil #1824 1,300

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 1,300

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
6 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.

July 2026 No new matches Change +1 Rating 1,300

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
6 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.

June 2026 No new matches Change 0 Rating 1,299

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
6 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 No new matches Change +5 Rating 1,299

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
6 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.

April 2026 No new matches Change -1 Rating 1,294

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
6 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.

March 2026 No new matches Change +2 Rating 1,295

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
6 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.

February 2026 No new matches Change -1 Rating 1,293

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
6 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.

January 2026 No new matches Change 0 Rating 1,294

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
6 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.

December 2025 No new matches Change +1 Rating 1,294

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
6 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.

November 2025 No new matches Change 0 Rating 1,293

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
6 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.

October 2025 No new matches Change -2 Rating 1,293

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
6 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.

September 2025 7 new matches Change Starting point Rating 1,295

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
September 20, 2025 Oleksii Ganchev
Züri Kids Cup 2025 Boys NO-GI / Grey / Kids 3 (2016-2017) / 27kg-30kg (heavy)
Method Points 02:00 2–6
Marginal influence -29
Win
September 20, 2025 Flynn Mahlstein
Züri Kids Cup 2025 Boys NO-GI / Grey / Kids 3 (2016-2017) / 27kg-30kg (heavy)
Method Points 02:00 4–0
Marginal influence +15
Win
September 20, 2025 Leonardo Faria Gloder
Züri Kids Cup 2025 Boys GI / Grey / Kids 3 (2016-2017) / 27kg-30kg (heavy)
Method Points 02:00 2–1
Marginal influence +25
Win
September 20, 2025 Flynn Mahlstein
Züri Kids Cup 2025 Boys GI / Grey / Kids 3 (2016-2017) / 27kg-30kg (heavy)
Method Points 02:00 2–1
Marginal influence +21
Loss
September 6, 2025 Unknown opponent
ADCC European, Middle East & African Championship 2025 Boys 9-10 years / Beginner / -32Kg
Method Submission 00:17 0–0
Marginal influence -27
Loss
September 6, 2025 Unknown opponent
ADCC European, Middle East & African Championship 2025 Boys 9-10 years / Beginner / -32Kg
Method Submission 02:39 0–0
Marginal influence -27
Win
September 6, 2025 Unknown opponent
ADCC European, Middle East & African Championship 2025 Boys 9-10 years / Beginner / -32Kg
Method Points 04:00 2–0
Marginal influence +17
Relevant matches
5.6
Official ranking percentile
Top 60%
Performance
-

5.6 weighted matches against 6 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,242
Repeated-opponent share
14.3%
Network connectivity
80.9%

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

Züri Kids Cup 2025
U12 · Counts
Boys NO-GI / Grey / Kids 3 (2016-2017) / 27kg-30kg (heavy)
  • Competition age 9
  • Registered age: u10
  • Source category: u10
Boys GI / Grey / Kids 3 (2016-2017) / 27kg-30kg (heavy)
  • Competition age 9
  • Registered age: u10
  • Source category: u10
ADCC European, Middle East & African Championship 2025
Does not count
Boys 9-10 years / Beginner / -32Kg
  • Competition age 9

Classification evidence

Why ≤ 30 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

  • ≤ 30 kg 1 competition event Selected outcome
  • ≤ 32 kg 1 competition event

Registrations and outcomes

Züri Kids Cup 2025
≤ 30 kg · Counts as a competition event
Boys NO-GI / Grey / Kids 3 (2016-2017) / 27kg-30kg (heavy)
  • Registered weight class: 27kg-30kg (heavy)
  • Source competition limit: 27kg-30kg (heavy)

2 matches in the rating period

Züri Kids Cup 2025
≤ 30 kg · Counts as a competition event
Boys GI / Grey / Kids 3 (2016-2017) / 27kg-30kg (heavy)
  • Registered weight class: 27kg-30kg (heavy)
  • Source competition limit: 27kg-30kg (heavy)

2 matches in the rating period

ADCC European, Middle East & African Championship 2025
≤ 32 kg · Counts as a competition event
Boys 9-10 years / Beginner / -32Kg
  • Registered weight class: -32Kg
  • Source competition limit: -32Kg

3 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 4 matches in the rating period Selected outcome

Registrations and outcomes

Züri Kids Cup 2025
grey · Counts as a match
Boys NO-GI / Grey / Kids 3 (2016-2017) / 27kg-30kg (heavy)
  • Source belt category: grey

2 matches in the rating period

Züri Kids Cup 2025
grey · Counts as a match
Boys GI / Grey / Kids 3 (2016-2017) / 27kg-30kg (heavy)
  • Source belt category: grey

2 matches in the rating period