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 1,342

Rating-period composition

Rating matches
11 0
Record
6–5 Previous month 6–5
Opponents
10 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.

July 2026 No new matches Change 0 Rating 1,342

Rating-period composition

Rating matches
11 0
Record
6–5 Previous month 6–5
Opponents
10 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.

June 2026 No new matches · 2 left period Change -3 Rating 1,342

Rating-period composition

Rating matches
11 -2
Record
6–5 Previous month 6–7
Opponents
10 -2
Events
3 -1

2 older matches left the 12-month period: 0 won and 2 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 Change -10 Rating 1,345

Rating-period composition

Rating matches
13 0
Record
6–7 Previous month 6–7
Opponents
12 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.

April 2026 No new matches Change +6 Rating 1,355

Rating-period composition

Rating matches
13 0
Record
6–7 Previous month 6–7
Opponents
12 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.

March 2026 4 new matches Change -15 Rating 1,349

Rating-period composition

Rating matches
13 +4
Record
6–7 Previous month 5–4
Opponents
12 +3
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
March 22, 2026 Alexander Polák
N-GEN Kids BJJ Tournament #4 Boys No-Gi / All belt / Junior (10-11yrs) / -36 kg (2015,2016)
Method Submission 02:12 0–17
Marginal influence -16
Win
March 22, 2026 Jakub Dominik
N-GEN Kids BJJ Tournament #4 Boys No-Gi / All belt / Junior (10-11yrs) / -36 kg (2015,2016)
Method Decision 03:00 0–0
Marginal influence +20
Loss
March 22, 2026 Štefan Jakubec
N-GEN Kids BJJ Tournament #4 Boys No-Gi / All belt / Junior (10-11yrs) / -36 kg (2015,2016)
Method Submission 01:07 0–2
Marginal influence -17
Loss
March 22, 2026 Oliver Balej
N-GEN Kids BJJ Tournament #4 Boys No-Gi / All belt / Junior (10-11yrs) / -36 kg (2015,2016)
Method Submission 02:46 0–9
Marginal influence -24
February 2026 No new matches Change +1 Rating 1,364

Rating-period composition

Rating matches
9 0
Record
5–4 Previous month 5–4
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.

January 2026 No new matches Change +1 Rating 1,363

Rating-period composition

Rating matches
9 0
Record
5–4 Previous month 5–4
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.

December 2025 7 new matches Change +235 Rating 1,362

Rating-period composition

Rating matches
9 +7
Record
5–4 Previous month 0–2
Opponents
9 +7
Events
3 +2

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
December 20, 2025 Alexander Polák
XIII. GrappleXmas BJJ Cup Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -32 kg (2016,2017,2018)
Method Points 03:00 0–2
Marginal influence -16
Win
December 20, 2025 Daniil Prokopenko
XIII. GrappleXmas BJJ Cup Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -32 kg (2016,2017,2018)
Method Submission 02:04 10–2
Marginal influence +25
Win
December 6, 2025 Aurélia Nena Holotová
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -32 kg
Method Decision 03:00 0–0
Marginal influence +23
Win
December 6, 2025 Alexander Millner
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -32 kg
Method Points 03:00 7–0
Marginal influence +9
Win
December 6, 2025 Arina Grishanova
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -32 kg
Method Points 03:00 7–3
Marginal influence +13
Win
December 6, 2025 Unknown opponent
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -32 kg
Method Decision 03:00 0–0
Marginal influence +17
Loss
December 6, 2025 Jiří Polzer
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -32 kg
Method Submission 01:55 0–0
Marginal influence -11
November 2025 No new matches Change 0 Rating 1,127

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
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.

October 2025 No new matches Change +1 Rating 1,127

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
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.

September 2025 No new matches Change -2 Rating 1,126

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
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.

Relevant matches
7.4
Official ranking percentile
Top 46%
Performance
10.3 pp above expectation

7.4 weighted matches against 10 different opponents across 3 events

Weighted win rate
57.9%
Expected win rate
47.6%
Average opponent rating
1,401
Repeated-opponent share
9.1%
Network connectivity
80.9%