Roman Marčenko - 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 1,281

Rating-period composition

Rating matches: 13 0
Record: 5–8 Previous month 5–8
Opponents: 11 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 1,280

Rating-period composition

Rating matches: 13 0
Record: 5–8 Previous month 5–8
Opponents: 11 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 1,280

Rating-period composition

Rating matches: 13 0
Record: 5–8 Previous month 5–8
Opponents: 11 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 -3 Rating 1,282

Rating-period composition

Rating matches: 13 0
Record: 5–8 Previous month 5–8
Opponents: 11 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 -4 Rating 1,285

Rating-period composition

Rating matches: 13 0
Record: 5–8 Previous month 5–8
Opponents: 11 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 No new matches · 2 left period Change -59 Rating 1,289

Rating-period composition

Rating matches: 13 -2
Record: 5–8 Previous month 7–8
Opponents: 11 -2
Events: 3 -1

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.

February 2026 No new matches Change -2 Rating 1,348

Rating-period composition

Rating matches: 15 0
Record: 7–8 Previous month 7–8
Opponents: 13 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.

January 2026 No new matches Change +7 Rating 1,350

Rating-period composition

Rating matches: 15 0
Record: 7–8 Previous month 7–8
Opponents: 13 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.

December 2025 No new matches Change -3 Rating 1,343

Rating-period composition

Rating matches: 15 0
Record: 7–8 Previous month 7–8
Opponents: 13 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 5 new matches · 2 left period Change +42 Rating 1,346

Rating-period composition

Rating matches: 15 +3
Record: 7–8 Previous month 5–7
Opponents: 13 +2
Events: 4 0

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

Loss

November 1, 2025 David Voloshchuk

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg

Method Disqualification 00:10 0–0

Marginal influence -15

Loss

November 1, 2025 Erik Macháček

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg

Method Submission 01:01 0–0

Marginal influence -11

Loss

November 1, 2025 Kiril Delos Santos

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg

Method Submission 01:28 0–0

Marginal influence -5

Win

November 1, 2025 David Polášek

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg

Method Submission 00:10 0–0

Marginal influence +9

Win

November 1, 2025 David Chromčák

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg

Method Submission 00:46 0–0

Marginal influence +23

October 2025 3 new matches Change +41 Rating 1,304

Rating-period composition

Rating matches: 12 +3
Record: 5–7 Previous month 3–6
Opponents: 11 +3
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

October 18, 2025 Leoš Chovanec

CZECH FIGHTING SERIES 11, Samurai Cup 2025 Grappling Gi / U12 Děti chlapci / -35 kg

Method Submission 01:35 4–6

Marginal influence +20

Win

October 18, 2025 Arne Schegolev

CZECH FIGHTING SERIES 11, Samurai Cup 2025 Grappling Gi / U12 Děti chlapci / -35 kg

Method Submission 00:26 2–0

Marginal influence +17

Loss

October 18, 2025 Kiril Delos Santos

CZECH FIGHTING SERIES 11, Samurai Cup 2025 Grappling Gi / U12 Děti chlapci / -35 kg

Method Submission 02:00 6–14

Marginal influence -7

September 2025 5 new matches · 2 left period Change +50 Rating 1,263

Rating-period composition

Rating matches: 9 +3
Record: 3–6 Previous month 2–4
Opponents: 8 +4
Events: 3 0

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

Loss

September 20, 2025 Alexander Ciornii

TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -32 kg

Method Submission 00:45 0–0

Marginal influence -7

Loss

September 20, 2025 Kristian Langer

TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -32 kg

Method Points 04:00 2–4

Marginal influence -16

Win

September 20, 2025 Maximilián Šesták

TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -32 kg

Method Submission 00:49 0–0

Marginal influence +18

Loss

September 20, 2025 Michal Mitlehner

TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -32 kg

Method Submission 01:19 0–0

Marginal influence -13

Loss

September 20, 2025 Michal Mitlehner

TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -32 kg

Method Submission 03:30 0–7

Marginal influence -13

Relevant matches: 8.2

Official ranking percentile: Top 67%

Performance: 6.3 pp below expectation

8.2 weighted matches against 11 different opponents across 3 events

Weighted win rate: 43.6%
Expected win rate: 49.9%
Average opponent rating: 1,364
Repeated-opponent share: 15.4%
Network connectivity: 80.9%