TopBJJ Index Youth
Language selector
Menu

Calculation details

Rating breakdown for the past 12 months

Close

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 +1 Rating 1,454

Rating-period composition

Rating matches
20 0
Record
13–7 Previous month 13–7
Opponents
18 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.

July 2026 No new matches Change -1 Rating 1,453

Rating-period composition

Rating matches
20 0
Record
13–7 Previous month 13–7
Opponents
18 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.

June 2026 No new matches Change +2 Rating 1,454

Rating-period composition

Rating matches
20 0
Record
13–7 Previous month 13–7
Opponents
18 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.

May 2026 5 new matches Change -15 Rating 1,452

Rating-period composition

Rating matches
20 +5
Record
13–7 Previous month 12–3
Opponents
18 +4
Events
4 +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
May 23, 2026 Jan Rác
NAGA Germany Grappling Championship Children No-Gi (Male) / Expert / 25 - 29.9 / 10-11 years
Method Points 00:48 0–3
Marginal influence -7
Loss
May 23, 2026 Davyd Khachatrian
NAGA Germany Grappling Championship Children No-Gi (Male) / Expert / 25 - 29.9 / 10-11 years
Method Submission 01:14 0–4
Marginal influence -8
Loss
May 23, 2026 Davyd Khachatrian
NAGA Germany Grappling Championship Children Gi (Male) / Expert / 25 - 29.9 / 10-11 years
Method Submission 03:45 0–5
Marginal influence -11
Win
May 23, 2026 Matvii Poliakov
NAGA Germany Grappling Championship Children Gi (Male) / Expert / 25 - 29.9 / 10-11 years
Method Points 04:00 11–0
Marginal influence +12
Loss
May 23, 2026 Yahya Adam
NAGA Germany Grappling Championship Children Gi (Male) / Expert / 25 - 29.9 / 10-11 years
Method Submission 01:32 0–5
Marginal influence -9
April 2026 No new matches Change +2 Rating 1,467

Rating-period composition

Rating matches
15 0
Record
12–3 Previous month 12–3
Opponents
14 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.

March 2026 No new matches Change +7 Rating 1,465

Rating-period composition

Rating matches
15 0
Record
12–3 Previous month 12–3
Opponents
14 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.

February 2026 No new matches · 3 left period Change -12 Rating 1,458

Rating-period composition

Rating matches
15 -3
Record
12–3 Previous month 14–4
Opponents
14 -1
Events
3 -1

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.

January 2026 7 new matches Change +61 Rating 1,470

Rating-period composition

Rating matches
18 +7
Record
14–4 Previous month 8–3
Opponents
15 +6
Events
4 +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
January 31, 2026 Lian Feddersen
The Combatch Games 5: Kids & Teens - Berlin Girls & Boys Gi (under 10) / Grey / Junior 1 (8/9yrs) / - 30 kg
Method Points 03:00 0–8
Marginal influence -13
Win
January 31, 2026 Marlin Voitz-Wiedau
The Combatch Games 5: Kids & Teens - Berlin Girls & Boys Gi (under 10) / Grey / Junior 1 (8/9yrs) / - 30 kg
Method Submission 00:36 6–2
Marginal influence +6
Win
January 31, 2026 Konrad Michalik
The Combatch Games 5: Kids & Teens - Berlin Girls & Boys Gi (under 10) / Grey / Junior 1 (8/9yrs) / - 30 kg
Method Submission 00:21 0–0
Marginal influence +7
Win
January 31, 2026 Ilaria Schön
The Combatch Games 5: Kids & Teens - Berlin Girls & Boys Gi (under 10) / Grey / Junior 1 (8/9yrs) / - 30 kg
Method Points 03:00 13–0
Marginal influence +10
Win
January 31, 2026 Marlin Voitz-Wiedau
The Combatch Games 5: Kids & Teens - Berlin Girls & Boys Nogi (under 10) / Fortgeschrittene / Junior 1 (8/9yrs) / - 30 kg
Method Points 03:00 10–0
Marginal influence +7
Win
January 31, 2026 Emilia Hodzhaieva
The Combatch Games 5: Kids & Teens - Berlin Girls & Boys Nogi (under 10) / Fortgeschrittene / Junior 1 (8/9yrs) / - 30 kg
Method Points 03:00 6–0
Marginal influence +5
Win
January 31, 2026 Louis Fischer
The Combatch Games 5: Kids & Teens - Berlin Girls & Boys Nogi (under 10) / Fortgeschrittene / Junior 1 (8/9yrs) / - 30 kg
Method Decision 03:00 0–0
Marginal influence +9
December 2025 No new matches Change +3 Rating 1,409

Rating-period composition

Rating matches
11 0
Record
8–3 Previous month 8–3
Opponents
9 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.

November 2025 4 new matches · 5 left period Change -8 Rating 1,406

Rating-period composition

Rating matches
11 -1
Record
8–3 Previous month 9–3
Opponents
9 0
Events
3 0

5 older matches left the 12-month period: 3 won and 2 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.
Win
November 1, 2025 Antonín Vejmelka
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -28 kg
Method Decision 03:00 0–0
Marginal influence +14
Win
November 1, 2025 Šimon Huráb
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -28 kg
Method Points 03:00 2–0
Marginal influence +12
Loss
November 1, 2025 Vojtěch Šatava
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -28 kg
Method Points 03:00 0–3
Marginal influence -9
Loss
November 1, 2025 Kristian Kubíček
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -28 kg
Method Decision 03:00 0–0
Marginal influence -16
October 2025 No new matches · 5 left period Change -51 Rating 1,414

Rating-period composition

Rating matches
12 -5
Record
9–3 Previous month 13–4
Opponents
9 -5
Events
3 -1

5 older matches left the 12-month period: 4 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

September 2025 4 new matches Change +55 Rating 1,465

Rating-period composition

Rating matches
17 +4
Record
13–4 Previous month 9–4
Opponents
14 +4
Events
4 +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 Jawad Anani
King Tatami - BJJ Gi Kids Pro Boys Gi / 8-9 Jahre/Years / -27 kg
Method Submission 00:25 4–2
Marginal influence +7
Win
September 27, 2025 Robert Rafail Koukaras
King Tatami - BJJ Gi Kids Pro Boys Gi / 8-9 Jahre/Years / -27 kg
Method Points 03:00 10–0
Marginal influence +10
Win
September 27, 2025 Alvar Thomä
King Tatami - BJJ Gi Kids Pro Boys Gi / 8-9 Jahre/Years / -27 kg
Method Points 03:00 6–0
Marginal influence +13
Win
September 27, 2025 Oleksandr Yeromenko
King Tatami - BJJ Gi Kids Pro Boys Gi / 8-9 Jahre/Years / -27 kg
Method Points 03:00 15–7
Marginal influence +10
Relevant matches
14.7
Official ranking percentile
Top 14%
Performance
9.9 pp above expectation

14.7 weighted matches against 18 different opponents across 4 events

Weighted win rate
65.1%
Expected win rate
55.2%
Average opponent rating
1,353
Repeated-opponent share
10.0%
Network connectivity
80.9%