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 Change 0 Rating 1,546

Rating-period composition

Rating matches
23 0
Record
20–3 Previous month 20–3
Opponents
17 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.

July 2026 No new matches Change 0 Rating 1,546

Rating-period composition

Rating matches
23 0
Record
20–3 Previous month 20–3
Opponents
17 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.

June 2026 No new matches Change -5 Rating 1,546

Rating-period composition

Rating matches
23 0
Record
20–3 Previous month 20–3
Opponents
17 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.

May 2026 No new matches Change -1 Rating 1,551

Rating-period composition

Rating matches
23 0
Record
20–3 Previous month 20–3
Opponents
17 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 0 Rating 1,552

Rating-period composition

Rating matches
23 0
Record
20–3 Previous month 20–3
Opponents
17 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 No new matches Change +5 Rating 1,552

Rating-period composition

Rating matches
23 0
Record
20–3 Previous month 20–3
Opponents
17 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.

February 2026 8 new matches Change +53 Rating 1,547

Rating-period composition

Rating matches
23 +8
Record
20–3 Previous month 13–2
Opponents
17 +7
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
February 21, 2026 Sergei Kovalev
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
Method Submission 01:14 0–5
Marginal influence +9
Win
February 21, 2026 Samuel Nikolas Stejskal
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
Method Submission 02:52 3–4
Marginal influence +6
Win
February 21, 2026 Filip Krupka
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
Method Submission 01:47 6–0
Marginal influence +7
Win
February 21, 2026 Abubakar Salgereev
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
Method Submission 02:40 10–0
Marginal influence +11
Win
February 21, 2026 Sergei Kovalev
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
Method Submission 00:37 0–0
Marginal influence +9
Win
February 21, 2026 Libor Dobeš
TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 13-14 years / Boys / Beginner / -50 kg
Method Submission 01:05 0–0
Marginal influence +6
Win
February 21, 2026 Ksenija Almashi
TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 13-14 years / Boys / Beginner / -50 kg
Method Submission 00:55 0–0
Marginal influence +3
Loss
February 21, 2026 Dominik Kavan
TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 13-14 years / Boys / Beginner / -50 kg
Method Submission 01:16 0–0
Marginal influence -17
January 2026 No new matches Change +2 Rating 1,494

Rating-period composition

Rating matches
15 0
Record
13–2 Previous month 13–2
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.

December 2025 6 new matches Change +45 Rating 1,492

Rating-period composition

Rating matches
15 +6
Record
13–2 Previous month 8–1
Opponents
10 +4
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
December 20, 2025 Jan Kubín
XIII. GrappleXmas BJJ Cup Boys No-Gi / All belt / Junior I (12-13 yrs) / -46 kg (2012,2013)
Method Submission 00:15 0–0
Marginal influence -9
Win
December 20, 2025 Mathias Mičian
XIII. GrappleXmas BJJ Cup Boys No-Gi / All belt / Junior I (12-13 yrs) / -46 kg (2012,2013)
Method Submission 00:45 0–0
Marginal influence +4
Win
December 20, 2025 Václav Bednář
XIII. GrappleXmas BJJ Cup Boys No-Gi / All belt / Junior I (12-13 yrs) / -46 kg (2012,2013)
Method Submission 02:17 11–0
Marginal influence +5
Win
December 20, 2025 Šimon Janků
XIII. GrappleXmas BJJ Cup Boys No-Gi / All belt / Junior I (12-13 yrs) / -46 kg (2012,2013)
Method Submission 00:20 0–0
Marginal influence +2
Win
December 20, 2025 Mathias Mičian
XIII. GrappleXmas BJJ Cup Boys Gi / White grey / Junior I (12-13 yrs) / -46 kg (2012,2013)
Method Submission 01:09 2–0
Marginal influence +9
Win
December 20, 2025 Šimon Janků
XIII. GrappleXmas BJJ Cup Boys Gi / White grey / Junior I (12-13 yrs) / -46 kg (2012,2013)
Method Submission 00:34 0–0
Marginal influence +6
November 2025 No new matches Change 0 Rating 1,447

Rating-period composition

Rating matches
9 0
Record
8–1 Previous month 8–1
Opponents
6 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.

October 2025 4 new matches Change +64 Rating 1,447

Rating-period composition

Rating matches
9 +4
Record
8–1 Previous month 4–1
Opponents
6 +2
Events
2 +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 5, 2025 Albert Ficek
AOM Cup Kids 3 Boys NoGi / White / U15 (2012,2011,2010) / -44 kg
Method Points 04:00 4–2
Marginal influence +5
Win
October 5, 2025 Albert Ficek
AOM Cup Kids 3 Boys NoGi / White / U15 (2012,2011,2010) / -44 kg
Method Submission 01:36 0–2
Marginal influence +5
Win
October 5, 2025 Tomáš Mitlehner
AOM Cup Kids 3 Boys Gi / white, Grey / U15 (2012,2011,2010) / -44 kg
Method Submission 02:10 5–0
Marginal influence +5
Win
October 5, 2025 Martin Jurečka
AOM Cup Kids 3 Boys Gi / white, Grey / U15 (2012,2011,2010) / -44 kg
Method Submission 01:32 0–0
Marginal influence +8
September 2025 5 new matches Change Starting point Rating 1,383

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 20, 2025 Tomáš Mitlehner
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -45 kg
Method Submission 01:53 0–0
Marginal influence +5
Win
September 20, 2025 Nikolas Soudný
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -45 kg
Method Points 04:00 3–2
Marginal influence +13
Win
September 20, 2025 Khalid Ajdamirov
TATAMY 16 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Beginner / -45 kg
Method Submission 03:10 0–2
Marginal influence +3
Win
September 20, 2025 Nikolas Soudný
TATAMY 16 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Beginner / -45 kg
Method Submission 01:58 0–0
Marginal influence +7
Loss
September 20, 2025 Islam Magomadov
TATAMY 16 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Beginner / -45 kg
Method Submission 01:39 0–0
Marginal influence -10
Relevant matches
16.1
Official ranking percentile
Top 5%
Performance
20.3 pp above expectation

16.1 weighted matches against 17 different opponents across 4 events

Weighted win rate
85.9%
Expected win rate
65.6%
Average opponent rating
1,324
Repeated-opponent share
26.1%
Network connectivity
80.9%