David Rosenbaum - Rating

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: 7 0
Record: 2–5 Previous month 2–5
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 0 Rating 1,193

Rating-period composition

Rating matches: 7 0
Record: 2–5 Previous month 2–5
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 1,193

Rating-period composition

Rating matches: 7 0
Record: 2–5 Previous month 2–5
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 · 3 left period Change -5 Rating 1,192

Rating-period composition

Rating matches: 7 -3
Record: 2–5 Previous month 3–7
Opponents: 7 -1
Events: 2 -1

3 older matches left the 12-month period: 1 won and 2 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 +3 Rating 1,197

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 · 2 left period Change -83 Rating 1,194

Rating-period composition

Rating matches: 10 +1
Record: 3–7 Previous month 5–4
Opponents: 8 +3
Events: 3 0

2 older matches left the 12-month period: 2 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.

Loss

March 21, 2026 Marcus ŠOUN

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

Method Points 04:00 3–7

Marginal influence -24

Loss

March 21, 2026 Damian Trnka

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 -32

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 00:47 0–6

Marginal influence -20

February 2026 No new matches Change +9 Rating 1,277

Rating-period composition

Rating matches: 9 0
Record: 5–4 Previous month 5–4
Opponents: 5 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.

January 2026 No new matches · 1 left period Change +22 Rating 1,268

Rating-period composition

Rating matches: 9 -1
Record: 5–4 Previous month 5–5
Opponents: 5 -1
Events: 3 -1

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.

December 2025 No new matches Change -4 Rating 1,246

Rating-period composition

Rating matches: 10 0
Record: 5–5 Previous month 5–5
Opponents: 6 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.

November 2025 4 new matches Change +30 Rating 1,250

Rating-period composition

Rating matches: 10 +4
Record: 5–5 Previous month 3–3
Opponents: 6 +2
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

November 1, 2025 David Sekanina

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / +60 kg

Method Points 04:00 0–-1

Marginal influence +35

Loss

November 1, 2025 Tomas Rezac

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / +60 kg

Method Submission 01:10 0–0

Marginal influence -14

Loss

November 1, 2025 Erik Auramioti

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / +60 kg

Method Submission 00:58 0–0

Marginal influence -18

Win

November 1, 2025 Michael Nováček

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / +60 kg

Method Decision 04:00 0–0

Marginal influence +37

October 2025 No new matches · 1 left period Change +17 Rating 1,220

Rating-period composition

Rating matches: 6 -1
Record: 3–3 Previous month 3–4
Opponents: 4 0
Events: 3 -1

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.

September 2025 No new matches Change +4 Rating 1,203

Rating-period composition

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

Relevant matches: 5.1

Official ranking percentile: Top 88%

Performance: -

5.1 weighted matches against 7 different opponents across 2 events

Weighted win rate: -
Expected win rate: -
Average opponent rating: 1,310
Repeated-opponent share: 0.0%
Network connectivity: 80.9%