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 · 2 left period Change +9 Rating 1,480

Rating-period composition

Rating matches: 15 -2
Record: 12–3 Previous month 13–4
Opponents: 10 -2
Events: 4 -1

2 older matches left the 12-month period: 1 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

July 2026 No new matches Change +2 Rating 1,471

Rating-period composition

Rating matches: 17 0
Record: 13–4 Previous month 13–4
Opponents: 12 0
Events: 5 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 1,469

Rating-period composition

Rating matches: 17 0
Record: 13–4 Previous month 13–4
Opponents: 12 0
Events: 5 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 1,467

Rating-period composition

Rating matches: 17 0
Record: 13–4 Previous month 13–4
Opponents: 12 0
Events: 5 0

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

April 2026 6 new matches Change +34 Rating 1,464

Rating-period composition

Rating matches: 17 +6
Record: 13–4 Previous month 8–3
Opponents: 12 +2
Events: 5 +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 25, 2026 Tomáš Kozák

GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -36 kg / Beginner

Method Submission 03:02 0–2

Marginal influence -18

Win

April 25, 2026 David Chromčák

GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -36 kg / Beginner

Method Submission 00:42 2–0

Marginal influence +7

Win

April 25, 2026 Jeremiáš Fuccillo

GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -36 kg / Beginner

Method Points 04:00 7–0

Marginal influence +5

Win

April 25, 2026 Tobiáš Blahník

GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -36 kg / Beginner

Method Submission 00:24 4–0

Marginal influence +7

Win

April 25, 2026 Tomáš Kozák

GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -36 kg / Beginner

Method Submission 00:25 0–0

Marginal influence +13

Win

April 25, 2026 David Voloshchuk

GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -36 kg / Beginner

Method Submission 0–0

Marginal influence +13

March 2026 6 new matches Change +81 Rating 1,430

Rating-period composition

Rating matches: 11 +6
Record: 8–3 Previous month 4–1
Opponents: 10 +5
Events: 4 +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.

Loss

March 21, 2026 Unknown opponent

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg

Method Submission 03:39 2–15

Marginal influence -19

Win

March 21, 2026 Jeremiáš Fuccillo

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg

Method Submission 01:56 13–0

Marginal influence +5

Win

March 21, 2026 Kiril Delos Santos

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg

Method Submission 00:46 2–2

Marginal influence +25

Win

March 21, 2026 Cezary Soczówka

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg

Method Submission 00:15 0–0

Marginal influence +7

Loss

March 7, 2026 Unknown opponent

2026 AGF Prague Championships Gi Kids / Boys / Pre Teen (10 - 11 yrs) / White / Feather III (Up to 38.60 kg)

Method Submission 01:59 6–4

Marginal influence -22

Win

March 7, 2026 David Voloshchuk

2026 AGF Prague Championships Gi Kids / Boys / Pre Teen (10 - 11 yrs) / White / Feather III (Up to 38.60 kg)

Method Submission 02:56 4–4

Marginal influence +17

February 2026 No new matches Change -1 Rating 1,349

Rating-period composition

Rating matches: 5 0
Record: 4–1 Previous month 4–1
Opponents: 5 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.

January 2026 No new matches Change -15 Rating 1,350

Rating-period composition

Rating matches: 5 0
Record: 4–1 Previous month 4–1
Opponents: 5 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.

December 2025 3 new matches Change +149 Rating 1,365

Rating-period composition

Rating matches: 5 +3
Record: 4–1 Previous month 1–1
Opponents: 5 +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.

Win

December 14, 2025 Boris Nikolaev

Christmas Kids Ground BJJ Tour - Finálové kolo 2025 Kids mix 9-11 let - Kimono / -35kg

Method Other recorded result 01:16 0–0

Marginal influence +13

Win

December 14, 2025 David Chromčák

Christmas Kids Ground BJJ Tour - Finálové kolo 2025 Kids mix 9-11 let - Kimono / -35kg

Method Other recorded result 01:53 0–0

Marginal influence +9

Win

December 14, 2025 Arnold Polikarpov

Christmas Kids Ground BJJ Tour - Finálové kolo 2025 Kids mix 9-11 let - Kimono / -35kg

Method Other recorded result 00:18 0–0

Marginal influence +13

November 2025 No new matches Change -7 Rating 1,216

Rating-period composition

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

October 2025 No new matches Change -2 Rating 1,223

Rating-period composition

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

September 2025 No new matches Change +3 Rating 1,225

Rating-period composition

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

Relevant matches: 8.6

Official ranking percentile: Top 11%

Performance: 14.9 pp above expectation

8.6 weighted matches against 10 different opponents across 4 events

Weighted win rate: 81.8%
Expected win rate: 66.9%
Average opponent rating: 1,327
Repeated-opponent share: 33.3%
Network connectivity: 80.9%