Damian Trnka - 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 1,192

Rating-period composition

Rating matches: 10 0
Record: 3–7 Previous month 3–7
Opponents: 8 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.

July 2026 No new matches Change 0 Rating 1,193

Rating-period composition

Rating matches: 10 0
Record: 3–7 Previous month 3–7
Opponents: 8 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.

June 2026 No new matches Change +2 Rating 1,193

Rating-period composition

Rating matches: 10 0
Record: 3–7 Previous month 3–7
Opponents: 8 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.

May 2026 No new matches Change 0 Rating 1,191

Rating-period composition

Rating matches: 10 0
Record: 3–7 Previous month 3–7
Opponents: 8 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.

April 2026 No new matches Change 0 Rating 1,191

Rating-period composition

Rating matches: 10 0
Record: 3–7 Previous month 3–7
Opponents: 8 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.

March 2026 3 new matches Change +9 Rating 1,191

Rating-period composition

Rating matches: 10 +3
Record: 3–7 Previous month 2–5
Opponents: 8 +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 21, 2026 Lukas Čupak

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Submission 00:50 0–3

Marginal influence -11

Win

March 21, 2026 David Rosenbaum

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Submission 01:46 0–0

Marginal influence +28

Loss

March 21, 2026 Marcus ŠOUN

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Submission 02:58 10–18

Marginal influence -20

February 2026 4 new matches Change 0 Rating 1,182

Rating-period composition

Rating matches: 7 +4
Record: 2–5 Previous month 1–2
Opponents: 6 +3
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

February 21, 2026 Konrad Groß

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Submission 00:58 0–7

Marginal influence -9

Loss

February 21, 2026 Petr Němec

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Submission 01:16 0–8

Marginal influence -19

Loss

February 21, 2026 Lukáš Šabo

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Points 04:00 0–7

Marginal influence -22

Win

February 21, 2026 Lukas Čupak

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Disqualification 01:15 7–6

Marginal influence +26

January 2026 No new matches Change 0 Rating 1,182

Rating-period composition

Rating matches: 3 0
Record: 1–2 Previous month 1–2
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.

December 2025 3 new matches Change Starting point Rating 1,182

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 Valeriy Dzharty

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Submission 03:01 0–3

Marginal influence -19

Loss

December 6, 2025 Konrad Groß

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Submission 00:31 0–0

Marginal influence -11

Win

December 6, 2025 Richard Vlček

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Submission 01:34 0–0

Marginal influence +20

Relevant matches: 6.5

Official ranking percentile: Top 88%

Performance: 16.6 pp below expectation

6.5 weighted matches against 8 different opponents across 3 events

Weighted win rate: 31.0%
Expected win rate: 47.6%
Average opponent rating: 1,297
Repeated-opponent share: 20.0%
Network connectivity: 80.9%