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 1,264

Rating-period composition

Rating matches
30 0
Record
9–21 Previous month 9–21
Opponents
21 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 0 Rating 1,264

Rating-period composition

Rating matches
30 0
Record
9–21 Previous month 9–21
Opponents
21 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 No new matches Change -2 Rating 1,264

Rating-period composition

Rating matches
30 0
Record
9–21 Previous month 9–21
Opponents
21 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.

May 2026 6 new matches Change +27 Rating 1,266

Rating-period composition

Rating matches
30 +6
Record
9–21 Previous month 6–18
Opponents
21 +4
Events
6 +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.
Win
May 2, 2026 Michal Chuda
ADCC CZECH OPEN CHAMPIONSHIP 2026 Kids Mix 9-10 years / Beginner / -28kg
Method Points 03:00 6–4
Marginal influence +11
Loss
May 2, 2026 Jan Veselý
ADCC CZECH OPEN CHAMPIONSHIP 2026 Kids Mix 9-10 years / Beginner / -28kg
Method Submission 00:36 0–0
Marginal influence -8
Loss
May 2, 2026 Michal Chuda
Valachien Challenge Gi 2026 Kids Mix 9-10 years / All belts / -28kg
Method Points 03:00 6–8
Marginal influence -6
Win
Valachien Challenge Gi 2026 Kids Mix 9-10 years / All belts / -28kg
Method Points 03:00 2–2
Marginal influence +14
Win
May 2, 2026 Filip Martinec
Valachien Challenge Gi 2026 Kids Mix 9-10 years / All belts / -28kg
Method Points 03:00 11–9
Marginal influence +10
Loss
May 2, 2026 Michal Chuda
Valachien Challenge Gi 2026 Kids Mix 9-10 years / All belts / -28kg
Method Submission 02:42 9–11
Marginal influence -6
April 2026 8 new matches Change +34 Rating 1,239

Rating-period composition

Rating matches
24 +8
Record
6–18 Previous month 3–13
Opponents
17 +5
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.
Win
April 18, 2026 Ondřej Kahánek
XV. REBEL BJJ CUP Boys Gi / White grey / Pee Wee (7-9 yrs) / -29 kg (2017,2018,2019)
Method Points 03:00 7–0
Marginal influence +8
Win
April 18, 2026 Medard Volný
XV. REBEL BJJ CUP Boys Gi / White grey / Pee Wee (7-9 yrs) / -29 kg (2017,2018,2019)
Method Points 03:00 8–3
Marginal influence +10
Loss
April 18, 2026 Oliver Alčer
XV. REBEL BJJ CUP Boys Gi / White grey / Pee Wee (7-9 yrs) / -29 kg (2017,2018,2019)
Method Points 03:00 0–8
Marginal influence -3
Loss
April 18, 2026 Daniel Cetkovsky
XV. REBEL BJJ CUP Boys Gi / White grey / Pee Wee (7-9 yrs) / -29 kg (2017,2018,2019)
Method Points 03:00 0–16
Marginal influence -5
Loss
April 18, 2026 Oliver Alčer
XV. REBEL BJJ CUP Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -32 kg (2017,2018,2019)
Method Points 03:00 8–14
Marginal influence -6
Win
April 18, 2026 Stela Byrtusová
XV. REBEL BJJ CUP Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -32 kg (2017,2018,2019)
Method Points 03:00 9–9
Marginal influence +7
Loss
April 18, 2026 Daniel Cetkovsky
XV. REBEL BJJ CUP Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -32 kg (2017,2018,2019)
Method Points 03:00 0–2
Marginal influence -6
Loss
April 18, 2026 Daniil Prokopenko
XV. REBEL BJJ CUP Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -32 kg (2017,2018,2019)
Method Points 03:00 5–15
Marginal influence -7
March 2026 5 new matches Change -15 Rating 1,205

Rating-period composition

Rating matches
16 +5
Record
3–13 Previous month 3–8
Opponents
12 +2
Events
3 +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 David Řezníček
N-GEN Kids BJJ Tournament #4 Boys Gi / White grey / Pee Wee (7-9 yrs) / -29 kg (2017,2018,2019)
Method Submission 00:39 0–0
Marginal influence -7
Loss
March 22, 2026 Darek Pobuda
N-GEN Kids BJJ Tournament #4 Boys Gi / White grey / Pee Wee (7-9 yrs) / -29 kg (2017,2018,2019)
Method Submission 01:03 0–9
Marginal influence -1
Loss
March 22, 2026 David Řezníček
N-GEN Kids BJJ Tournament #4 Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -29 kg (2017,2018,2019)
Method Submission 00:20 0–0
Marginal influence -8
Loss
March 22, 2026 Tobiáš Jendrisek
N-GEN Kids BJJ Tournament #4 Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -29 kg (2017,2018,2019)
Method Submission 02:12 0–11
Marginal influence -6
Loss
March 22, 2026 Darek Pobuda
N-GEN Kids BJJ Tournament #4 Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -29 kg (2017,2018,2019)
Method Submission 01:00 0–9
Marginal influence -3
February 2026 No new matches Change -6 Rating 1,220

Rating-period composition

Rating matches
11 0
Record
3–8 Previous month 3–8
Opponents
10 0
Events
2 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 -2 Rating 1,226

Rating-period composition

Rating matches
11 0
Record
3–8 Previous month 3–8
Opponents
10 0
Events
2 0

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

December 2025 11 new matches Change Starting point Rating 1,228

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 Samuel Cetkovsky
XIII. GrappleXmas BJJ Cup Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -26 kg (2016,2017,2018)
Method Submission 02:06 2–2
Marginal influence -8
Win
December 20, 2025 Tomáš Frydrych
XIII. GrappleXmas BJJ Cup Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -26 kg (2016,2017,2018)
Method Points 03:00 9–2
Marginal influence +13
Win
December 20, 2025 Dominik Bátrla
XIII. GrappleXmas BJJ Cup Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -26 kg (2016,2017,2018)
Method Points 03:00 10–7
Marginal influence +14
Loss
December 6, 2025 Botond Baros
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -28 kg
Method Submission 00:54 0–0
Marginal influence -4
Loss
December 6, 2025 Daniel Cetkovsky
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -28 kg
Method Decision 03:00 0–0
Marginal influence -6
Loss
December 6, 2025 Tobiáš Jendrisek
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -28 kg
Method Submission 00:23 0–0
Marginal influence -6
Loss
December 6, 2025 Michal Hrnčár
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -28 kg
Method Points 03:00 0–2
Marginal influence -8
Win
December 6, 2025 Adélka Bugnerová
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -28 kg
Method Decision 03:00 0–0
Marginal influence +10
Loss
December 6, 2025 Šimon Huráb
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -28 kg
Method Submission 01:57 0–3
Marginal influence -4
Loss
December 6, 2025 Ludwig Biel
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -28 kg
Method Points 03:00 0–6
Marginal influence -8
Loss
December 6, 2025 Samuel Cetkovsky
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -28 kg
Method Submission 01:33 0–0
Marginal influence -9
Relevant matches
20.8
Official ranking percentile
Top 72%
Performance
9.3 pp below expectation

20.8 weighted matches against 21 different opponents across 6 events

Weighted win rate
31.9%
Expected win rate
41.3%
Average opponent rating
1,338
Repeated-opponent share
30.0%
Network connectivity
80.9%