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 0 Rating 1,270

Rating-period composition

Rating matches
25 0
Record
10–15 Previous month 10–15
Opponents
20 0
Events
9 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 1,270

Rating-period composition

Rating matches
25 0
Record
10–15 Previous month 10–15
Opponents
20 0
Events
9 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 · 1 left period Change +8 Rating 1,270

Rating-period composition

Rating matches
25 -1
Record
10–15 Previous month 10–16
Opponents
20 -1
Events
9 -1

1 older matches left the 12-month period: 0 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

May 2026 2 new matches · 6 left period Change -78 Rating 1,262

Rating-period composition

Rating matches
26 -4
Record
10–16 Previous month 15–15
Opponents
21 -4
Events
10 0

6 older matches left the 12-month period: 5 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
May 23, 2026 Zulfikar Chkair
BERLIN OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / Yellow / 12-13 years / -66 kg
Method Points 04:00 6–13
Marginal influence -13
Loss
May 23, 2026 Elias Benabdallah
BERLIN OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / Yellow / 12-13 years / -66 kg
Method Submission 00:34 0–2
Marginal influence -10
April 2026 2 new matches Change -20 Rating 1,340

Rating-period composition

Rating matches
30 +2
Record
15–15 Previous month 15–13
Opponents
25 +2
Events
10 +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
April 26, 2026 Jules Huys
NAGA Brussels Grappling Championship Children No-Gi (Male) / Expert / 60 - 64.9 / 12-13 years
Method Submission 03:17 3–7
Marginal influence -8
NAGA Brussels Grappling Championship Children No-Gi (Male) / Expert / 60 - 64.9 / 12-13 years
Method Submission 01:33 1–8
Marginal influence -13
March 2026 5 new matches · 6 left period Change -3 Rating 1,360

Rating-period composition

Rating matches
28 -1
Record
15–13 Previous month 14–15
Opponents
23 +1
Events
9 0

6 older matches left the 12-month period: 2 won and 4 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
March 14, 2026 Raphael Böhm
Grappling Industries NUREMBERG No Gi Kids / Intermediate (Grey) / 12 - 13 years (Male) / -135 lbs
Method Submission 02:28 0–2
Marginal influence +14
Win
March 14, 2026 Poiarkov Ilarion
Grappling Industries NUREMBERG No Gi Kids / Intermediate (Grey) / 12 - 13 years (Male) / -135 lbs
Method Submission 00:22 2–0
Marginal influence +15
Loss
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Children No-Gi (Male) / Expert / 55 - 59.9 / 12-13 years
Method Submission 01:35 0–7
Marginal influence -11
Win
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Children No-Gi (Male) / Expert / 55 - 59.9 / 12-13 years
Method Submission 00:21 0–0
Marginal influence +13
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Children No-Gi (Male) / Expert / 55 - 59.9 / 12-13 years
Method Submission 02:10 0–10
Marginal influence -12
February 2026 No new matches Change -1 Rating 1,363

Rating-period composition

Rating matches
29 0
Record
14–15 Previous month 14–15
Opponents
22 0
Events
9 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

January 2026 6 new matches Change +12 Rating 1,364

Rating-period composition

Rating matches
29 +6
Record
14–15 Previous month 11–12
Opponents
22 +4
Events
9 +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 Soma Sakai
The Combatch Games 5: Kids & Teens - Berlin Openclass Male Nogi (10 - 13 years) / Experten / 10 - 13 years / Open Class - Heavy (+45kg)
Method Submission 02:43 2–2
Marginal influence -5
Win
January 31, 2026 Lukas Steindl
The Combatch Games 5: Kids & Teens - Berlin Openclass Male Nogi (10 - 13 years) / Experten / 10 - 13 years / Open Class - Heavy (+45kg)
Method Submission 00:33 0–0
Marginal influence +8
Loss
January 31, 2026 Yroslav Pashetnykh
The Combatch Games 5: Kids & Teens - Berlin Teen Boys Nogi / Experten / Teen 1 (13/14yrs) / - 65 kg
Method Points 04:00 0–7
Marginal influence -8
Loss
January 31, 2026 Iyad Allam
The Combatch Games 5: Kids & Teens - Berlin Teen Boys Nogi / Fortgeschrittene / Teen 1 (12/13yrs) / - 60 kg
Method Points 04:00 4–5
Marginal influence -7
Win
January 31, 2026 Elisha Bar Nisan
The Combatch Games 5: Kids & Teens - Berlin Teen Boys Nogi / Fortgeschrittene / Teen 1 (12/13yrs) / - 60 kg
Method Submission 01:10 4–2
Marginal influence +10
Win
January 31, 2026 Lukas Steindl
The Combatch Games 5: Kids & Teens - Berlin Teen Boys Nogi / Fortgeschrittene / Teen 1 (12/13yrs) / - 60 kg
Method Submission 00:44 0–2
Marginal influence +8
December 2025 No new matches Change -2 Rating 1,352

Rating-period composition

Rating matches
23 0
Record
11–12 Previous month 11–12
Opponents
18 0
Events
8 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

November 2025 3 new matches · 5 left period Change -7 Rating 1,354

Rating-period composition

Rating matches
23 -2
Record
11–12 Previous month 12–13
Opponents
18 -4
Events
8 -1

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 22, 2025 Joseph Morris
Grappling Industries BERLIN No Gi Kids / Intermediate (Grey) / 12 - 13 years (Male) / -125 lbs
Method Submission 01:32 0–0
Marginal influence +9
Loss
November 22, 2025 Joseph Morris
Grappling Industries BERLIN No Gi Kids / Intermediate (Grey) / 12 - 13 years (Male) / -125 lbs
Method Submission 01:38 0–5
Marginal influence -8
Win
November 22, 2025 Joseph Morris
Grappling Industries BERLIN No Gi Kids / Intermediate (Grey) / 12 - 13 years (Male) / -125 lbs
Method Submission 00:43 0–0
Marginal influence +9
October 2025 6 new matches · 4 left period Change -59 Rating 1,361

Rating-period composition

Rating matches
25 +2
Record
12–13 Previous month 14–9
Opponents
22 +1
Events
9 0

4 older matches left the 12-month period: 4 won and 0 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
October 11, 2025 Ansgar Von Manteuffel
Grappling Industries NUREMBERG No Gi Kids / Intermediate (Grey) / 12 - 13 years (Male) / -135 lbs
Method Submission 01:02 0–0
Marginal influence +14
Win
October 11, 2025 Raphael Böhm
Grappling Industries NUREMBERG No Gi Kids / Intermediate (Grey) / 12 - 13 years (Male) / -135 lbs
Method Points 03:00 9–4
Marginal influence +13
Loss
October 4, 2025 Ivan Avramkin
NAGA Europe Grappling Championship Children No-Gi (Male) / Expert / 55 - 59.9 / 12-13 years
Method Points 00:44 0–2
Marginal influence -6
Loss
October 4, 2025 Ivan Avramkin
NAGA Europe Grappling Championship Children No-Gi (Male) / Expert / 55 - 59.9 / 12-13 years
Method Submission 00:48 0–2
Marginal influence -6
Loss
October 4, 2025 Volodymyr Gamzian
NAGA Europe Grappling Championship Children No-Gi (Male) / Expert / 50 - 54.9 / 12-13 years
Method Submission 03:42 0–8
Marginal influence -8
Loss
October 4, 2025 Victor Lebedev
NAGA Europe Grappling Championship Children No-Gi (Male) / Expert / 50 - 54.9 / 12-13 years
Method Submission 02:53 2–10
Marginal influence -7
September 2025 1 new match · 2 left period Change -32 Rating 1,420

Rating-period composition

Rating matches
23 -1
Record
14–9 Previous month 16–8
Opponents
21 -1
Events
9 0

2 older matches left the 12-month period: 2 won and 0 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
September 6, 2025 Unknown opponent
ADCC European, Middle East & African Championship 2025 Boys 11-12 years / Beginner / -55 kg
Method Submission 00:22 0–0
Marginal influence -5
Relevant matches
16.7
Official ranking percentile
Top 70%
Performance
4.5 pp below expectation

16.7 weighted matches against 20 different opponents across 9 events

Weighted win rate
36.2%
Expected win rate
40.8%
Average opponent rating
1,342
Repeated-opponent share
20.0%
Network connectivity
80.9%