Jakub Zima - 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 +1 Rating 1,041

Rating-period composition

Rating matches: 7 0
Record: 0–7 Previous month 0–7
Opponents: 7 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.

July 2026 No new matches Change -1 Rating 1,040

Rating-period composition

Rating matches: 7 0
Record: 0–7 Previous month 0–7
Opponents: 7 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.

June 2026 No new matches Change +1 Rating 1,041

Rating-period composition

Rating matches: 7 0
Record: 0–7 Previous month 0–7
Opponents: 7 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.

May 2026 No new matches Change +10 Rating 1,040

Rating-period composition

Rating matches: 7 0
Record: 0–7 Previous month 0–7
Opponents: 7 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.

April 2026 4 new matches Change -36 Rating 1,030

Rating-period composition

Rating matches: 7 +4
Record: 0–7 Previous month 0–3
Opponents: 7 +4
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.

Loss

April 11, 2026 Matyas Habich

Pardubice Grappling Open vol.6 Boys Junior GI / 6-8 years / -36 kg / Beginner

Method Submission 03:00 0–3

Marginal influence -11

Loss

April 11, 2026 Unknown opponent

Pardubice Grappling Open vol.6 Boys Junior GI / 6-8 years / -36 kg / Beginner

Method Points 03:00 0–3

Marginal influence -20

Loss

April 11, 2026 Mahulena Pirklová

Pardubice Grappling Open vol.6 Boys Junior GI / 6-8 years / -36 kg / Beginner

Method Submission 01:54 0–0

Marginal influence -13

Loss

April 11, 2026 Johanka Vrabcová

Pardubice Grappling Open vol.6 Boys Junior GI / 6-8 years / -36 kg / Beginner

Method Points 03:00 2–4

Marginal influence -18

March 2026 No new matches Change +2 Rating 1,066

Rating-period composition

Rating matches: 3 0
Record: 0–3 Previous month 0–3
Opponents: 3 0
Events: 1 0

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

February 2026 No new matches Change +5 Rating 1,064

Rating-period composition

Rating matches: 3 0
Record: 0–3 Previous month 0–3
Opponents: 3 0
Events: 1 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 · 3 left period Change +21 Rating 1,059

Rating-period composition

Rating matches: 3 -3
Record: 0–3 Previous month 0–6
Opponents: 3 -3
Events: 1 -1

3 older matches left the 12-month period: 0 won and 3 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

December 2025 No new matches · 3 left period Change +28 Rating 1,038

Rating-period composition

Rating matches: 6 -3
Record: 0–6 Previous month 0–9
Opponents: 6 -3
Events: 2 -1

3 older matches left the 12-month period: 0 won and 3 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

November 2025 No new matches Change -1 Rating 1,010

Rating-period composition

Rating matches: 9 0
Record: 0–9 Previous month 0–9
Opponents: 9 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.

October 2025 3 new matches · 1 left period Change -33 Rating 1,011

Rating-period composition

Rating matches: 9 +2
Record: 0–9 Previous month 0–7
Opponents: 9 +2
Events: 3 0

1 older matches left the 12-month period: 0 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.

Loss

October 5, 2025 Milan Kolomazník

AOM Cup Kids 3 Boys Gi / White / U7 (2019,2018) / +29 kg

Method Submission 00:48 0–11

Marginal influence -12

Loss

October 5, 2025 František Strnadel

AOM Cup Kids 3 Boys Gi / White / U7 (2019,2018) / +29 kg

Method Points 03:00 0–16

Marginal influence -19

Loss

October 5, 2025 Dominik Schwarc

AOM Cup Kids 3 Boys Gi / White / U7 (2019,2018) / +29 kg

Method Points 03:00 0–9

Marginal influence -25

September 2025 No new matches Change -7 Rating 1,044

Rating-period composition

Rating matches: 7 0
Record: 0–7 Previous month 0–7
Opponents: 7 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.

Relevant matches: 5.1

Official ranking percentile: Top 100%

Performance: -

5.1 weighted matches against 7 different opponents across 2 events

Weighted win rate: -
Expected win rate: -
Average opponent rating: 1,341
Repeated-opponent share: 0.0%
Network connectivity: 80.9%