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 1,559

Rating-period composition

Rating matches
25 0
Record
24–1 Previous month 24–1
Opponents
15 0
Events
6 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 -2 Rating 1,559

Rating-period composition

Rating matches
25 0
Record
24–1 Previous month 24–1
Opponents
15 0
Events
6 0

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

June 2026 4 new matches Change +28 Rating 1,561

Rating-period composition

Rating matches
25 +4
Record
24–1 Previous month 20–1
Opponents
15 +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
June 20, 2026 Zoe Horvatova
Open Czech championship submission only 2026 NOGI - Kids girls 10-13y / -36 kg / Intermediate (2-4 years of training)
Method Submission 00:24 0–0
Marginal influence +5
Win
June 20, 2026 Barbora Telecká
Open Czech championship submission only 2026 NOGI - Kids girls 10-13y / -36 kg / Intermediate (2-4 years of training)
Method Submission 00:13 0–0
Marginal influence +8
Win
June 20, 2026 Barbora Telecká
Open Czech championship submission only 2026 GI - Kids girls 10-13y / -36 kg / Yellow belt
Method Submission 01:59 0–0
Marginal influence +8
Win
June 20, 2026 Zoe Horvatova
Open Czech championship submission only 2026 GI - Kids girls 10-13y / -36 kg / Yellow belt
Method Submission 00:33 0–0
Marginal influence +3
May 2026 5 new matches · 2 left period Change +21 Rating 1,533

Rating-period composition

Rating matches
21 +3
Record
20–1 Previous month 17–1
Opponents
14 +2
Events
5 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.
Win
May 16, 2026 Pia Riegler
Vienna Open Championship 2026 - Offene Wiener Landesmeisterschaft 2026 Jiu Jitsu Gi (BJJ Gi) - Female / U14 / Orange / Green Belt (Advanced Kids) / -36 kg
Method Submission 00:05 0–0
Marginal influence +4
Win
May 16, 2026 Sophie Ascher
Vienna Open Championship 2026 - Offene Wiener Landesmeisterschaft 2026 Jiu Jitsu Gi (BJJ Gi) - Female / U14 / Orange / Green Belt (Advanced Kids) / -36 kg
Method Submission 01:02 6–0
Marginal influence +5
Win
May 16, 2026 Zoey Fiala
Vienna Open Championship 2026 - Offene Wiener Landesmeisterschaft 2026 Jiu Jitsu Gi (BJJ Gi) - Female / U14 / Orange / Green Belt (Advanced Kids) / -36 kg
Method Submission 00:34 2–0
Marginal influence +6
Win
May 16, 2026 Emilia Lukic
Vienna Open Championship 2026 - Offene Wiener Landesmeisterschaft 2026 Jiu Jitsu No Gi (BJJ No Gi) - Female / U14 / Grey / Yellow Belt (Advanced Kids) / -36 kg
Method Submission 00:40 9–0
Marginal influence +3
Win
May 16, 2026 Emilia Lukic
Vienna Open Championship 2026 - Offene Wiener Landesmeisterschaft 2026 Jiu Jitsu No Gi (BJJ No Gi) - Female / U14 / Grey / Yellow Belt (Advanced Kids) / -36 kg
Method Submission 01:01 9–0
Marginal influence +3
April 2026 No new matches · 5 left period Change -16 Rating 1,512

Rating-period composition

Rating matches
18 -5
Record
17–1 Previous month 21–2
Opponents
12 -4
Events
5 -2

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.

March 2026 No new matches · 5 left period Change -47 Rating 1,528

Rating-period composition

Rating matches
23 -5
Record
21–2 Previous month 26–2
Opponents
16 -3
Events
7 -1

5 older matches left the 12-month period: 5 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

February 2026 4 new matches · 5 left period Change +11 Rating 1,575

Rating-period composition

Rating matches
28 -1
Record
26–2 Previous month 26–3
Opponents
19 -1
Events
8 0

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.

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 Kristýna Šmelová
TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 10-12 years / Girls / Beginner / -36 kg
Method Submission 02:30 0–0
Marginal influence +5
Win
February 21, 2026 Zoe Horvatova
TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 10-12 years / Girls / Beginner / -36 kg
Method Submission 01:37 0–0
Marginal influence +5
Win
February 21, 2026 Markó Rebeka
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Girls / Yellow/orange/green belt / -36 kg
Method Submission 01:18 0–0
Marginal influence +5
Win
February 21, 2026 Zoe Horvatova
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Girls / Yellow/orange/green belt / -36 kg
Method Submission 00:58 7–0
Marginal influence +3
January 2026 No new matches Change +6 Rating 1,564

Rating-period composition

Rating matches
29 0
Record
26–3 Previous month 26–3
Opponents
20 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.

December 2025 4 new matches Change +24 Rating 1,558

Rating-period composition

Rating matches
29 +4
Record
26–3 Previous month 22–3
Opponents
20 +2
Events
8 +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 Markó Rebeka
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Girls / Yellow/orange/green belt / -36 kg
Method Points 04:00 4–2
Marginal influence +4
Win
December 6, 2025 Markó Rebeka
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Girls / Yellow/orange/green belt / -36 kg
Method Submission 01:08 0–0
Marginal influence +4
Win
December 6, 2025 Kristýna Šmelová
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 10-12 years / Girls / Beginner / -36 kg
Method Submission 00:23 0–0
Marginal influence +5
Win
December 6, 2025 Kristýna Šmelová
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 10-12 years / Girls / Beginner / -36 kg
Method Submission 00:20 0–0
Marginal influence +5
November 2025 3 new matches · 1 left period Change +2 Rating 1,534

Rating-period composition

Rating matches
25 +2
Record
22–3 Previous month 20–3
Opponents
18 +2
Events
7 0

1 older matches left the 12-month period: 1 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
November 23, 2025 Maksym Kalynych
ADCC Czech National Championship 2025 Boys Junior / 11-12 years / Beginner / -36 kg
Method Submission 02:01 0–0
Marginal influence +8
Win
November 23, 2025 Jan Koch
ADCC Czech National Championship 2025 Boys Junior / 11-12 years / Beginner / -36 kg
Method Submission 02:24 0–0
Marginal influence +5
Win
November 23, 2025 Kristýna Řezníčková
ADCC Czech National Championship 2025 Boys Junior / 11-12 years / Beginner / -36 kg
Method Submission 00:06 0–0
Marginal influence +6
October 2025 5 new matches Change +16 Rating 1,532

Rating-period composition

Rating matches
23 +5
Record
20–3 Previous month 16–2
Opponents
16 +4
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
October 25, 2025 David Polášek
N-GEN Kids BJJ Tournament #3 Boys No-Gi / All belt / Junior (10-11yrs) / -36 kg (2014,2015)
Method Submission 00:39 0–0
Marginal influence +2
Win
October 25, 2025 Jan Koch
N-GEN Kids BJJ Tournament #3 Boys No-Gi / All belt / Junior (10-11yrs) / -36 kg (2014,2015)
Method Submission 00:47 0–0
Marginal influence +5
Loss
October 25, 2025 Simon Kovac
N-GEN Kids BJJ Tournament #3 Boys No-Gi / All belt / Junior (10-11yrs) / -36 kg (2014,2015)
Method Submission 02:34 0–2
Marginal influence -15
Win
October 25, 2025 Viktoria Hošková
N-GEN Kids BJJ Tournament #3 Girls Gi / All belt / Junior (10-11yrs) / -42 kg (2014,2015)
Method Submission 01:24 2–0
Marginal influence +7
Win
October 25, 2025 Ingrid Chmelarova
N-GEN Kids BJJ Tournament #3 Girls Gi / All belt / Junior (10-11yrs) / -42 kg (2014,2015)
Method Submission 00:48 9–0
Marginal influence +3
September 2025 No new matches Change -1 Rating 1,516

Rating-period composition

Rating matches
18 0
Record
16–2 Previous month 16–2
Opponents
12 0
Events
6 0

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

Relevant matches
16.2
Official ranking percentile
Top 4%
Performance
21.7 pp above expectation

16.2 weighted matches against 15 different opponents across 6 events

Weighted win rate
95.8%
Expected win rate
74.1%
Average opponent rating
1,275
Repeated-opponent share
40.0%
Network connectivity
80.9%