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 · 4 left period Change -67 Rating 1,409

Rating-period composition

Rating matches
10 -4
Record
7–3 Previous month 11–3
Opponents
7 -4
Events
4 -1

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.

July 2026 No new matches Change +2 Rating 1,476

Rating-period composition

Rating matches
14 0
Record
11–3 Previous month 11–3
Opponents
11 0
Events
5 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 · 2 left period Change +1 Rating 1,474

Rating-period composition

Rating matches
14 -2
Record
11–3 Previous month 12–4
Opponents
11 -2
Events
5 -1

2 older matches left the 12-month period: 1 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 No new matches · 3 left period Change +4 Rating 1,473

Rating-period composition

Rating matches
16 -3
Record
12–4 Previous month 13–6
Opponents
13 -2
Events
6 -1

3 older matches left the 12-month period: 1 won and 2 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

April 2026 No new matches Change -3 Rating 1,469

Rating-period composition

Rating matches
19 0
Record
13–6 Previous month 13–6
Opponents
15 0
Events
7 0

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

March 2026 4 new matches Change +35 Rating 1,472

Rating-period composition

Rating matches
19 +4
Record
13–6 Previous month 10–5
Opponents
15 +3
Events
7 +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
March 21, 2026 Unknown opponent
TATAMY 20: PRAGUE - KIDS (round robin) Kids / No Gi / 13-14 years / Boys / Intermediate / -40 kg
Method Submission 00:41 0–0
Marginal influence +5
Win
March 21, 2026 Franciszek Pakuła
TATAMY 20: PRAGUE - KIDS (round robin) Kids / No Gi / 13-14 years / Boys / Intermediate / -40 kg
Method Submission 00:59 0–0
Marginal influence +13
Win
March 21, 2026 Denis Sivak
TATAMY 20: PRAGUE - KIDS (round robin) Kids / No Gi / 13-14 years / Boys / Intermediate / -40 kg
Method Points 04:00 3–0
Marginal influence +20
Loss
March 21, 2026 Matyáš Barák
TATAMY 20: PRAGUE - KIDS (round robin) Kids / No Gi / 13-14 years / Boys / Intermediate / -40 kg
Method Points 04:00 0–5
Marginal influence -12
February 2026 2 new matches Change +8 Rating 1,437

Rating-period composition

Rating matches
15 +2
Record
10–5 Previous month 9–4
Opponents
12 +1
Events
6 +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
February 21, 2026 Tomas Svitek
TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 10-12 years / Boys / Intermediate / -40 kg
Method Submission 01:40 0–0
Marginal influence +23
Loss
February 21, 2026 Unknown opponent
TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 10-12 years / Boys / Intermediate / -40 kg
Method Points 04:00 0–3
Marginal influence -14
January 2026 No new matches Change -5 Rating 1,429

Rating-period composition

Rating matches
13 0
Record
9–4 Previous month 9–4
Opponents
11 0
Events
5 0

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

December 2025 2 new matches Change +28 Rating 1,434

Rating-period composition

Rating matches
13 +2
Record
9–4 Previous month 7–4
Opponents
11 +1
Events
5 +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
December 6, 2025 Unknown opponent
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -40 kg
Method Submission 01:00 0–0
Marginal influence -11
Win
December 6, 2025 Unknown opponent
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 10-12 years / Boys / Intermediate / -40 kg
Method Submission 00:46 0–0
Marginal influence +8
November 2025 No new matches · 2 left period Change -15 Rating 1,406

Rating-period composition

Rating matches
11 -2
Record
7–4 Previous month 8–5
Opponents
10 -2
Events
4 -1

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

October 2025 No new matches · 6 left period Change -56 Rating 1,421

Rating-period composition

Rating matches
13 -6
Record
8–5 Previous month 12–7
Opponents
12 -3
Events
5 -1

6 older matches left the 12-month period: 4 won and 2 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

September 2025 2 new matches · 8 left period Change -48 Rating 1,477

Rating-period composition

Rating matches
19 -6
Record
12–7 Previous month 18–7
Opponents
15 -3
Events
6 0

8 older matches left the 12-month period: 7 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
September 14, 2025 Unknown opponent
ADCC AUSTRIAN NATIONALS OPEN 2025 Boys 11-12 years / Intermediate / -40 kg
Method Submission 01:35 0–-1
Marginal influence -14
Win
September 14, 2025 Platon Gorokhov
ADCC AUSTRIAN NATIONALS OPEN 2025 Boys 11-12 years / Intermediate / -40 kg
Method Points 04:00 3–0
Marginal influence +22
Relevant matches
7.2
Official ranking percentile
Top 25%
Performance
19.1 pp above expectation

7.2 weighted matches against 7 different opponents across 4 events

Weighted win rate
73.7%
Expected win rate
54.6%
Average opponent rating
1,371
Repeated-opponent share
30.0%
Network connectivity
80.9%