TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
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 · 5 left period Change +8 Rating 1,473

Rating-period composition

Rating matches
65 -5
Record
39–26 Previous month 42–28
Opponents
28 -2
Events
13 -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.

July 2026 No new matches Change +2 Rating 1,465

Rating-period composition

Rating matches
70 0
Record
42–28 Previous month 42–28
Opponents
30 0
Events
14 0

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

June 2026 5 new matches · 7 left period Change -13 Rating 1,463

Rating-period composition

Rating matches
70 -2
Record
42–28 Previous month 44–28
Opponents
30 -4
Events
14 -1

7 older matches left the 12-month period: 4 won and 3 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
June 20, 2026 Unknown opponent
Open Czech championship submission only 2026 NOGI Litle Kids Boy 7-9 years / -40kg
Method Decision 03:22 0–0
Marginal influence -4
Loss
June 20, 2026 Unknown opponent
Open Czech championship submission only 2026 NOGI Litle Kids Boy 7-9 years / -40kg
Method Submission 02:03 0–0
Marginal influence -4
Win
June 20, 2026 Unknown opponent
Open Czech championship submission only 2026 GI Litle Kids Boy 7-9 years / -40kg / Grey belt
Method Submission 02:48 0–0
Marginal influence +2
Loss
June 20, 2026 Unknown opponent
Open Czech championship submission only 2026 GI Litle Kids Boy 7-9 years / -40kg / Grey belt
Method Decision 03:17 0–0
Marginal influence -2
Win
June 20, 2026 Unknown opponent
Open Czech championship submission only 2026 GI Litle Kids Boy 7-9 years / -40kg / Grey belt
Method Decision 03:09 0–0
Marginal influence +2
May 2026 7 new matches · 14 left period Change -19 Rating 1,476

Rating-period composition

Rating matches
72 -7
Record
44–28 Previous month 50–29
Opponents
34 -1
Events
15 0

14 older matches left the 12-month period: 9 won and 5 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 30, 2026 Unknown opponent
2026 AGF Czech Championships Gi Kids / Boys / Kids (8 - 9 yrs) / Gray / Light I (Up to 43.10 kg)
Method Points 02:00 5–2
Marginal influence +2
Loss
May 30, 2026 Unknown opponent
2026 AGF Czech Championships Gi Kids / Boys / Kids (8 - 9 yrs) / Gray / Light I (Up to 43.10 kg)
Method Points 02:00 3–5
Marginal influence -2
Win
May 30, 2026 Unknown opponent
2026 AGF Czech Championships Gi Kids / Boys / Kids (8 - 9 yrs) / Gray / Light I (Up to 43.10 kg)
Method Points 02:00 9–2
Marginal influence +2
Loss
May 2, 2026 Unknown opponent
ADCC CZECH OPEN CHAMPIONSHIP 2026 Kids Mix 9-10 years / Beginner / +40kg
Method Points 03:00 0–3
Marginal influence -4
Loss
May 2, 2026 Ivana Jakimovska
ADCC CZECH OPEN CHAMPIONSHIP 2026 Kids Mix 9-10 years / Beginner / +40kg
Method Submission 01:44 0–0
Marginal influence -12
Loss
May 2, 2026 Vitězslav Pítr
Valachien Challenge Gi 2026 Kids Mix 9-10 years / All belts / +40kg
Method Submission 01:49 0–11
Marginal influence -5
Win
May 2, 2026 David Polášek
Valachien Challenge Gi 2026 Kids Mix 9-10 years / All belts / +40kg
Method Submission 01:08 3–0
Marginal influence +2
April 2026 4 new matches · 6 left period Change -14 Rating 1,495

Rating-period composition

Rating matches
79 -2
Record
50–29 Previous month 52–29
Opponents
35 -4
Events
15 -1

6 older matches left the 12-month period: 6 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
April 11, 2026 Michal Mitlehner
Pardubice Grappling Open vol.6 Boys Junior GI / 9-10 years / -36 kg / Intermediate
Method Submission 00:48 0–0
Marginal influence +6
Win
April 11, 2026 Michal Mitlehner
Pardubice Grappling Open vol.6 Boys Junior GI / 9-10 years / -36 kg / Intermediate
Method Points 03:00 3–-1
Marginal influence +6
Win
April 11, 2026 Michal Mitlehner
Pardubice Grappling Open vol.6 Boys Junior No-GI / 9-10 years / -40 kg / Professional
Method Submission 01:35 0–0
Marginal influence +4
Win
April 11, 2026 Michal Mitlehner
Pardubice Grappling Open vol.6 Boys Junior No-GI / 9-10 years / -40 kg / Professional
Method Points 03:00 3–0
Marginal influence +4
March 2026 2 new matches · 11 left period Change -7 Rating 1,509

Rating-period composition

Rating matches
81 -9
Record
52–29 Previous month 58–32
Opponents
39 -6
Events
16 -1

11 older matches left the 12-month period: 7 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.
Loss
March 7, 2026 Nicolas Bonetti
2026 AGF Prague Championships Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Gray / Feather III (Up to 38.60 kg)
Method Points 03:00 0–5
Marginal influence -7
Win
2026 AGF Prague Championships Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Gray / Feather III (Up to 38.60 kg)
Method Submission 01:17 3–0
Marginal influence +5
February 2026 8 new matches · 10 left period Change +16 Rating 1,516

Rating-period composition

Rating matches
90 -2
Record
58–32 Previous month 59–33
Opponents
45 -1
Events
17 0

10 older matches left the 12-month period: 5 won and 5 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
February 21, 2026 Simon Kovac
TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 7-9 years / Mix / All levels / -40 kg
Method Submission 00:26 0–0
Marginal influence -4
Win
February 21, 2026 Unknown opponent
TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 7-9 years / Mix / All levels / -40 kg
Method Submission 02:38 6–0
Marginal influence +7
Loss
February 21, 2026 Unknown opponent
TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 7-9 years / Mix / All levels / -40 kg
Method Submission 01:18 0–0
Marginal influence -4
Win
February 21, 2026 Unknown opponent
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 7-9 years / Mix / All levels / -40 kg
Method Points 03:00 14–0
Marginal influence +2
Loss
February 21, 2026 Unknown opponent
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 7-9 years / Mix / All levels / -40 kg
Method Points 03:00 4–9
Marginal influence -2
Loss
February 21, 2026 Simon Kovac
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 7-9 years / Mix / All levels / -40 kg
Method Submission 00:34 0–0
Marginal influence -4
Win
February 21, 2026 Tomáš Dvorský
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 7-9 years / Mix / All levels / -40 kg
Method Submission 01:15 0–0
Marginal influence +6
Win
February 21, 2026 Karol Kušnierik
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 7-9 years / Mix / All levels / -40 kg
Method Submission 01:41 13–0
Marginal influence +4
January 2026 4 new matches · 3 left period Change +20 Rating 1,500

Rating-period composition

Rating matches
92 +1
Record
59–33 Previous month 56–35
Opponents
46 -1
Events
17 0

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.

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
January 24, 2026 Unknown opponent
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) No-Gi / 7-9 years / Mixed (4 - 9 years) / -40 kg / Mixed (4 - 9 years)
Method Submission 02:12 0–0
Marginal influence +2
Win
January 24, 2026 Unknown opponent
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) No-Gi / 7-9 years / Mixed (4 - 9 years) / -40 kg / Mixed (4 - 9 years)
Method Submission 02:54 0–2
Marginal influence +2
Win
January 24, 2026 Unknown opponent
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -40 kg / Mixed (4 - 9 years)
Method Points 03:00 7–2
Marginal influence +3
Win
January 24, 2026 Lukas Habich
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -40 kg / Mixed (4 - 9 years)
Method Submission 00:41 0–0
Marginal influence +4
December 2025 9 new matches · 6 left period Change +6 Rating 1,480

Rating-period composition

Rating matches
91 +3
Record
56–35 Previous month 54–34
Opponents
47 -1
Events
17 0

6 older matches left the 12-month period: 3 won and 3 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
December 6, 2025 Vladimír Lengál
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -36 kg
Method Points 03:00 0–8
Marginal influence -7
Loss
December 6, 2025 Artur Kovalov
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -36 kg
Method Points 03:00 0–8
Marginal influence -3
Loss
December 6, 2025 Mykola Beshleha
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -36 kg
Method Decision 03:00 0–0
Marginal influence -8
Win
December 6, 2025 Amelie Cervinkova
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -36 kg
Method Submission 00:06 0–0
Marginal influence +2
Win
December 6, 2025 Zoe Horvatova
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Submission 01:03 0–0
Marginal influence +2
Win
December 6, 2025 Mykola Beshleha
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Decision 03:00 0–0
Marginal influence +5
Loss
December 6, 2025 Simon Kovac
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Submission 00:47 0–0
Marginal influence -4
Win
December 6, 2025 Mariannka Prits
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Submission 01:50 0–0
Marginal influence +2
Win
December 6, 2025 Artur Kovalov
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Decision 0–0
Marginal influence +5
November 2025 9 new matches Change +2 Rating 1,474

Rating-period composition

Rating matches
88 +9
Record
54–34 Previous month 49–30
Opponents
48 +3
Events
17 +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
November 23, 2025 Miroslav Lagron
ADCC Czech National Championship 2025 Boys Junior / 9-10 years / Intermediate / -36 kg
Method Submission 01:22 0–0
Marginal influence -4
Win
November 23, 2025 Kristýna Šmelová
ADCC Czech National Championship 2025 Boys Junior / 9-10 years / Intermediate / -36 kg
Method Submission 01:17 0–0
Marginal influence +7
Loss
November 1, 2025 Artur Kovalov
TATAMY 17 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -36 kg
Method Points 03:00 0–3
Marginal influence -4
Win
November 1, 2025 Lada Cherchenko
TATAMY 17 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -36 kg
Method Submission 01:16 0–0
Marginal influence +3
Win
November 1, 2025 Matouš Dančo
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Points 03:00 0–0
Marginal influence +7
Win
November 1, 2025 Zoe Horvatova
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Submission 00:11 0–0
Marginal influence +2
Loss
November 1, 2025 Artur Kovalov
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Decision 03:00 0–0
Marginal influence -3
Win
November 1, 2025 Adela Kucerova
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Submission 00:16 0–0
Marginal influence +2
Loss
November 1, 2025 Mykola Beshleha
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Points 03:00 0–2
Marginal influence -5
October 2025 No new matches Change +5 Rating 1,472

Rating-period composition

Rating matches
79 0
Record
49–30 Previous month 49–30
Opponents
45 0
Events
15 0

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

September 2025 17 new matches · 7 left period Change -3 Rating 1,467

Rating-period composition

Rating matches
79 +10
Record
49–30 Previous month 40–29
Opponents
45 +3
Events
15 +1

7 older matches left the 12-month period: 2 won and 5 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
September 27, 2025 Unknown opponent
2025 AGF Prague Open No Gi Kids Challenger / Boys / Regular Challenger / Feather II (Up to 34.00 kg)
Method Points 03:00 9–6
Marginal influence +2
Win
September 27, 2025 Jan Koch
2025 AGF Prague Open No Gi Kids Challenger / Boys / Regular Challenger / Feather II (Up to 34.00 kg)
Method Points 03:00 8–4
Marginal influence +3
Win
September 27, 2025 Jan Koch
2025 AGF Prague Open No Gi Kids / Boys / Kids (8 - 9 yrs) / Gray / Feather II (Up to 34.00 kg)
Method Points 03:00 23–4
Marginal influence +3
Win
September 27, 2025 Jan Koch
2025 AGF Prague Open No Gi Kids / Boys / Kids (8 - 9 yrs) / Gray / Feather II (Up to 34.00 kg)
Method Points 03:00 1–0
Marginal influence +3
Loss
September 27, 2025 Jan Koch
2025 AGF Prague Open No Gi Kids / Boys / Kids (8 - 9 yrs) / Gray / Feather II (Up to 34.00 kg)
Method Points 03:00 5–6
Marginal influence -3
Loss
September 27, 2025 Unknown opponent
2025 AGF Prague Open Gi Kids / Boys / Kids (8 - 9 yrs) / Gray / Feather III (Up to 38.60 kg)
Method Points 03:00 4–7
Marginal influence -3
Loss
September 27, 2025 Unknown opponent
2025 AGF Prague Open Gi Kids / Boys / Kids (8 - 9 yrs) / Gray / Feather III (Up to 38.60 kg)
Method Points 03:00 0–16
Marginal influence -3
Loss
September 20, 2025 Denis Marakhovskii
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Points 03:00 0–3
Marginal influence -5
Win
September 20, 2025 František Strnadel
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Submission 00:12 0–0
Marginal influence +4
Loss
September 20, 2025 Artur Kovalov
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Points 03:00 0–4
Marginal influence -3
Loss
September 20, 2025 Zoe Horvatova
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Decision 03:00 0–0
Marginal influence -6
Win
September 20, 2025 Adela Kucerova
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Submission 00:17 0–0
Marginal influence +2
Win
September 20, 2025 Artur Kovalov
TATAMY 16 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -36 kg
Method Submission 03:00 0–0
Marginal influence +4
Win
September 20, 2025 Unknown opponent
TATAMY 16 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -36 kg
Method Points 03:00 4–3
Marginal influence +2
Win
September 20, 2025 Lada Cherchenko
TATAMY 16 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -36 kg
Method Submission 00:18 0–0
Marginal influence +2
Win
September 20, 2025 Amelie Cervinkova
TATAMY 16 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -36 kg
Method Submission 00:10 0–1
Marginal influence +2
Win
September 20, 2025 Dominik Schwarc
TATAMY 16 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -36 kg
Method Submission 00:15 0–0
Marginal influence +3
Relevant matches
31.9
Official ranking percentile
Top 11%
Performance
4.3 pp above expectation

31.9 weighted matches against 28 different opponents across 13 events

Weighted win rate
59.9%
Expected win rate
55.6%
Average opponent rating
1,367
Repeated-opponent share
56.9%
Network connectivity
80.9%