Jiří Polzer - Rating | TopBJJ Index

Calculation details

Rating breakdown for the past 12 months

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 1,602

Rating-period composition

Rating matches: 38 0
Record: 32–6 Previous month 32–6
Opponents: 28 0
Events: 7 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 1,602

Rating-period composition

Rating matches: 38 0
Record: 32–6 Previous month 32–6
Opponents: 28 0
Events: 7 0

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

June 2026 3 new matches Change +2 Rating 1,602

Rating-period composition

Rating matches: 38 +3
Record: 32–6 Previous month 30–5
Opponents: 28 +3
Events: 7 +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

June 28, 2026 Unknown opponent

ADCC AUSTRIAN OPEN 2026 Boys 9-10 years / Beginner / -36 kg

Method Submission 01:55 2–-1

Marginal influence +4

Win

June 28, 2026 Georgiy Goldabenkov

ADCC AUSTRIAN OPEN 2026 Boys 9-10 years / Beginner / -36 kg

Method Submission 00:20 0–0

Marginal influence +3

Loss

June 14, 2026 Jean Riabzev

ADCC Suisse Open Championship 2026 BOYS / 9-10 years / -36 kg

Method Submission 02:51 0–0

Marginal influence -8

May 2026 No new matches · 16 left period Change -49 Rating 1,600

Rating-period composition

Rating matches: 35 -16
Record: 30–5 Previous month 42–9
Opponents: 25 -10
Events: 5 -3

16 older matches left the 12-month period: 12 won and 4 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

April 2026 No new matches Change +2 Rating 1,649

Rating-period composition

Rating matches: 51 0
Record: 42–9 Previous month 42–9
Opponents: 35 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.

March 2026 4 new matches · 8 left period Change -9 Rating 1,647

Rating-period composition

Rating matches: 51 -4
Record: 42–9 Previous month 46–9
Opponents: 35 -2
Events: 8 0

8 older matches left the 12-month period: 8 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

March 21, 2026 Unknown opponent

TATAMY 20: PRAGUE - KIDS (round robin) Kids / No Gi / 10-12 years / Boys / Intermediate / -32 kg

Method Decision 04:00 0–0

Marginal influence +3

Win

March 21, 2026 Unknown opponent

TATAMY 20: PRAGUE - KIDS (round robin) Kids / No Gi / 10-12 years / Boys / Intermediate / -32 kg

Method Submission 03:22 0–0

Marginal influence +3

Win

March 21, 2026 Adam Martin

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -32 kg

Method Submission 02:30 0–0

Marginal influence +4

Win

March 21, 2026 Adam Martin

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -32 kg

Method Submission 03:00 0–0

Marginal influence +4

February 2026 7 new matches · 9 left period Change -41 Rating 1,656

Rating-period composition

Rating matches: 55 -2
Record: 46–9 Previous month 51–6
Opponents: 37 0
Events: 8 0

9 older matches left the 12-month period: 9 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

February 21, 2026 Erik Macháček

TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg

Method Submission 02:07 0–0

Marginal influence +3

Loss

February 21, 2026 Adam Jeznach

TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg

Method Submission 02:02 0–0

Marginal influence -12

Loss

February 21, 2026 Mykhailo Shpynta

TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg

Method Submission 03:39 0–0

Marginal influence -13

Win

February 21, 2026 Markó Rebeka

TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg

Method Submission 00:51 0–0

Marginal influence +3

Win

February 21, 2026 Luka Long

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -32 kg

Method Submission 00:54 6–0

Marginal influence +5

Loss

February 21, 2026 Alexander Ciornii

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -32 kg

Method Submission 02:24 0–10

Marginal influence -8

Win

February 21, 2026 Alex Kubin

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -32 kg

Method Points 04:00 5–2

Marginal influence +6

January 2026 No new matches · 5 left period Change -1 Rating 1,697

Rating-period composition

Rating matches: 57 -5
Record: 51–6 Previous month 55–7
Opponents: 37 -3
Events: 8 -1

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.

December 2025 14 new matches · 6 left period Change +25 Rating 1,698

Rating-period composition

Rating matches: 62 +8
Record: 55–7 Previous month 48–6
Opponents: 40 +6
Events: 9 0

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

December 6, 2025 Alexander Polák

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg

Method Submission 01:12 0–0

Marginal influence +4

Win

December 6, 2025 Mahulena Pirklová

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg

Method Submission 01:00 0–0

Marginal influence +3

Win

December 6, 2025 Daniil Prokopenko

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg

Method Submission 01:08 0–0

Marginal influence +4

Win

December 6, 2025 Šimon Mareček

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg

Method Submission 01:00 0–0

Marginal influence +2

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 Submission 01:23 0–0

Marginal influence +4

Win

December 6, 2025 Vojtěch Jána

TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -32 kg

Method Submission 00:25 0–0

Marginal influence +5

Win

December 6, 2025 Lukáš Oravecz

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 +5

Loss

December 6, 2025 Alexander Ciornii

TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 10-12 years / Boys / Beginner / -32 kg

Method Points 04:00 1–2

Marginal influence -7

Win

December 6, 2025 Michal Mitlehner

TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 10-12 years / Boys / Beginner / -32 kg

Method Submission 01:40 0–0

Marginal influence +3

Win

December 6, 2025 Andrej Zywczak

TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 10-12 years / Boys / Beginner / -32 kg

Method Points 04:00 3–0

Marginal influence +3

Win

December 6, 2025 Ondrej Kolman

TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 10-12 years / Boys / Beginner / -32 kg

Method Submission 00:52 0–0

Marginal influence +2

Win

December 6, 2025 Maximilián Šesták

TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 10-12 years / Boys / Beginner / -32 kg

Method Submission 00:58 0–0

Marginal influence +3

Win

December 6, 2025 Vojtěch Jána

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg

Method Submission 02:54 4–0

Marginal influence +7

Win

December 6, 2025 Aurélia Nena Holotová

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg

Method Submission 01:44 0–0

Marginal influence +3

November 2025 10 new matches · 8 left period Change +13 Rating 1,673

Rating-period composition

Rating matches: 54 +2
Record: 48–6 Previous month 45–7
Opponents: 34 +2
Events: 9 +1

8 older matches left the 12-month period: 6 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

November 23, 2025 Unknown opponent

ADCC Czech National Championship 2025 Boys Junior / 9-10 years / Intermediate / -28 kg

Method Points 04:00 2–0

Marginal influence +8

Win

November 23, 2025 Jan Veselý

ADCC Czech National Championship 2025 Boys Junior / 9-10 years / Intermediate / -28 kg

Method Submission 00:53 0–0

Marginal influence +5

Win

November 23, 2025 Unknown opponent

ADCC Czech National Championship 2025 Boys Junior / 9-10 years / Intermediate / -28 kg

Method Submission 02:41 0–0

Marginal influence +3

Win

November 1, 2025 Unknown opponent

TATAMY 17 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -32 kg

Method Submission 01:00 0–0

Marginal influence +6

Win

November 1, 2025 Yaroslav Bespalyi

TATAMY 17 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -32 kg

Method Submission 00:41 0–0

Marginal influence +4

Win

November 1, 2025 Vojtěch Jána

TATAMY 17 KIDS (No-GI and GI round robin) Kids / No Gi / 7-9 years / Mix / All levels / -32 kg

Method Submission 01:19 0–0

Marginal influence +6

Win

November 1, 2025 Mikołaj Jeznach

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg

Method Submission 00:56 0–0

Marginal influence +3

Loss

November 1, 2025 Vojtěch Jána

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg

Method Submission 00:42 0–0

Marginal influence -5

Win

November 1, 2025 Unknown opponent

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg

Method Submission 00:49 0–0

Marginal influence +3

Win

November 1, 2025 Mikołaj Jeznach

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg

Method Submission 01:43 0–0

Marginal influence +3

October 2025 No new matches · 11 left period Change -10 Rating 1,660

Rating-period composition

Rating matches: 52 -11
Record: 45–7 Previous month 53–10
Opponents: 32 -4
Events: 8 -2

11 older matches left the 12-month period: 8 won and 3 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

September 2025 No new matches · 8 left period Change -8 Rating 1,670

Rating-period composition

Rating matches: 63 -8
Record: 53–10 Previous month 58–13
Opponents: 36 -4
Events: 10 -1

8 older matches left the 12-month period: 5 won and 3 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

Relevant matches: 24.4

Official ranking percentile: Top 2%

Performance: 16.8 pp above expectation

24.4 weighted matches against 28 different opponents across 7 events

Weighted win rate: 83.7%
Expected win rate: 66.8%
Average opponent rating: 1,400
Repeated-opponent share: 26.3%
Network connectivity: 80.9%