TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
Language selector
Menu
DE

Aaron Berg

CJJF Germany

W–L
6–1
Won and lost rating-eligible matches in the past 12 months.
Gi
1,391
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
6–1
Results from the ten most recent rating-eligible matches.
Opponents
7
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
2
Silver
1
Bronze
0
Total medals
3
Events with results
3

Full career record

Wins
6
Losses
1
Matches
7
Win rate
85.7%

Ways of winning

Submission
5
Points
1
Decision
0
Disqualification
0

Personal records

Longest winning streak
6
Longest submission streak
3
Longest gold streak
2

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
7
Distinct events
3

Ways of winning

  • Submission 5 83%
  • Points 1 17%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1391
Record
6–1
Win rate
86%
Submission share
83%

No-Gi

Rating
-
Record
-
Win rate
-
Submission share
-

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
1,391
Change over 90 days
+97
Highest rating in 12 months
1,391
Performance versus expectation
+17.8 pp
Schedule strength
Top 99%
Average opponent rating
1,207
Weighted win rate
85%
Expected win rate
67%
Repeat-opponent share
0%
Effective evidence
5.6
Confidence
73/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #1072 Njegoš Irić · Newcomer Battle Trials 2026 Sub 04:00 14–0
  2. #1392 Jalil Dif · Pandamania Summercup 2026 (Kids & Teens) Sub 00:47 5–0
  3. #1439 Enno Stuhler · Newcomer Battle Trials 2026 Sub 04:00 8–0

Full career

  1. #1072 Njegoš Irić · Newcomer Battle Trials 2026 Sub 04:00 14–0
  2. #1392 Jalil Dif · Pandamania Summercup 2026 (Kids & Teens) Sub 00:47 5–0
  3. #1439 Enno Stuhler · Newcomer Battle Trials 2026 Sub 04:00 8–0

Around this athlete

Athlete Rank Rating
Daniil Morasch #433 1,391
Aaron Berg #434 1,391
Jackson Hendriks #435 1,391

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 2 new matches Change +3 Rating 1,391

Rating-period composition

Rating matches
7 +2
Record
6–1 Previous month 5–0
Opponents
7 +2
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
August 15, 2026 Karim Nahmatov
LET´S ROLL HENNEF | EBI SUB-ONLY Teens Mixed Gi / Advanced / 14-15 years / -52 kg
Method Submission 02:50
Marginal influence -37
Win
August 15, 2026 Aminah Brahmi
LET´S ROLL HENNEF | EBI SUB-ONLY Teens Mixed Gi / Advanced / 14-15 years / -52 kg
Method Submission 01:38
Marginal influence +16
July 2026 No new matches Change 0 Rating 1,388

Rating-period composition

Rating matches
5 0
Record
5–0 Previous month 5–0
Opponents
5 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 3 new matches Change +119 Rating 1,388

Rating-period composition

Rating matches
5 +3
Record
5–0 Previous month 2–0
Opponents
5 +3
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.
Win
June 20, 2026 Jalil Dif
Pandamania Summercup 2026 (Kids & Teens) Kids (9-11 Jahre) - Gi / Boys / Beginner / -60 kg
Method Submission 00:47 5–0
Marginal influence +11
Win
June 20, 2026 Bastian Krey
Pandamania Summercup 2026 (Kids & Teens) Kids (9-11 Jahre) - Gi / Boys / Beginner / -60 kg
Method Submission 01:35 9–0
Marginal influence +29
Win
June 20, 2026 Marven Rolland
Pandamania Summercup 2026 (Kids & Teens) Kids (9-11 Jahre) - Gi / Boys / Beginner / -60 kg
Method Points 02:59 10–0
Marginal influence +19
May 2026 No new matches Change -17 Rating 1,269

Rating-period composition

Rating matches
2 0
Record
2–0 Previous month 2–0
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 -8 Rating 1,286

Rating-period composition

Rating matches
2 0
Record
2–0 Previous month 2–0
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 2 new matches Change Starting point Rating 1,294

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
March 15, 2026 Enno Stuhler
Newcomer Battle Trials 2026 U13 - male Gi / U13 - Male Gi - Alter 10 Jahre bis 12 Jahre / -55 kg
Method Submission 04:00 8–0
Marginal influence +14
Win
March 15, 2026 Njegoš Irić
Newcomer Battle Trials 2026 U13 - male Gi / U13 - Male Gi - Alter 10 Jahre bis 12 Jahre / -55 kg
Method Submission 04:00 14–0
Marginal influence +17
Relevant matches
5.6
Official ranking percentile
Top 30%
Performance
17.8 pp above expectation

5.6 weighted matches against 7 different opponents across 3 events

Weighted win rate
85.1%
Expected win rate
67.3%
Average opponent rating
1,207
Repeated-opponent share
0.0%
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 3 event votes Selected outcome

Registrations and outcomes

LET´S ROLL HENNEF | EBI SUB-ONLY
U14 · Counts
Teens Mixed Gi / Advanced / 14-15 years / -52 kg
  • Competition age 12
  • Registered age: u16
  • Source category: u16
Pandamania Summercup 2026 (Kids & Teens)
U14 · Counts
Kids (9-11 Jahre) - Gi / Boys / Beginner / -60 kg
  • Competition age 12
Newcomer Battle Trials 2026
U14 · Counts
U13 - male Gi / U13 - Male Gi - Alter 10 Jahre bis 12 Jahre / -55 kg
  • Competition age 12
  • Registered age: u12
  • Source category: u12

Classification evidence

Why ≤ 48 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

  • ≤ 48 kg 1 competition event Selected outcome
  • ≤ 55 kg 1 competition event
  • ≤ 60 kg 1 competition event

Registrations and outcomes

LET´S ROLL HENNEF | EBI SUB-ONLY
≤ 48 kg · Counts as a competition event
Teens Mixed Gi / Advanced / 14-15 years / -52 kg
  • Registered weight class: -48 kg
  • Source competition limit: -48 kg

2 matches in the rating period

Pandamania Summercup 2026 (Kids & Teens)
≤ 60 kg · Counts as a competition event
Kids (9-11 Jahre) - Gi / Boys / Beginner / -60 kg
  • Registered weight class: -60 kg
  • Source competition limit: -60 kg

3 matches in the rating period

Newcomer Battle Trials 2026
≤ 55 kg · Counts as a competition event
U13 - male Gi / U13 - Male Gi - Alter 10 Jahre bis 12 Jahre / -55 kg
  • Registered weight class: -55 kg
  • Source competition limit: -55 kg

2 matches in the rating period