Volodymyr Demchuk - 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 1,325

Rating-period composition

Rating matches: 43 0
Record: 15–28 Previous month 15–28
Opponents: 30 0
Events: 15 0

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

July 2026 3 new matches Change +4 Rating 1,326

Rating-period composition

Rating matches: 43 +3
Record: 15–28 Previous month 14–26
Opponents: 30 +3
Events: 15 +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

July 11, 2026 Maksym Kalynych

Pardubice Grappling Open vol.7 Boys Junior GI / 11-12 years / -45 kg / Intermediate

Method Points 04:00 2–0

Marginal influence +7

Loss

July 11, 2026 Ema Linkova

Pardubice Grappling Open vol.7 Boys Junior GI / 11-12 years / -45 kg / Intermediate

Method Submission 00:33 0–0

Marginal influence -4

Loss

July 11, 2026 David Pinkas

Pardubice Grappling Open vol.7 Boys Junior GI / 11-12 years / -45 kg / Intermediate

Method Submission 00:31 0–0

Marginal influence -3

June 2026 No new matches · 1 left period Change +4 Rating 1,322

Rating-period composition

Rating matches: 40 -1
Record: 14–26 Previous month 14–27
Opponents: 27 -1
Events: 14 -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.

May 2026 No new matches · 5 left period Change -35 Rating 1,318

Rating-period composition

Rating matches: 41 -5
Record: 14–27 Previous month 17–29
Opponents: 28 -3
Events: 15 -2

5 older matches left the 12-month period: 3 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 4 new matches Change +19 Rating 1,353

Rating-period composition

Rating matches: 46 +4
Record: 17–29 Previous month 14–28
Opponents: 31 +3
Events: 17 +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.

Win

April 25, 2026 Lukas Habich

GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -40 kg / Advanced

Method Submission 00:28 0–0

Marginal influence +4

Win

April 25, 2026 Lukas Habich

GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -40 kg / Advanced

Method Submission 01:46 0–0

Marginal influence +4

Loss

April 11, 2026 Karel Kolář

Pardubice Grappling Open vol.6 Boys Junior GI / 11-12 years / -45 kg / Beginner

Method Submission 00:18 0–0

Marginal influence -8

Win

April 11, 2026 Viktor Burkovsky

Pardubice Grappling Open vol.6 Boys Junior GI / 11-12 years / -45 kg / Beginner

Method Submission 01:52 0–0

Marginal influence +9

March 2026 9 new matches · 7 left period Change -48 Rating 1,334

Rating-period composition

Rating matches: 42 +2
Record: 14–28 Previous month 19–21
Opponents: 28 -2
Events: 15 0

7 older matches left the 12-month period: 6 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

March 21, 2026 Tibor Culek

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -45 kg

Method Points 04:00 0–7

Marginal influence -3

Loss

March 21, 2026 Šimon Popelka

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -45 kg

Method Submission 00:14 0–2

Marginal influence -3

Loss

March 21, 2026 Unknown opponent

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -45 kg

Method Submission 00:27 0–7

Marginal influence -2

Loss

March 21, 2026 Tibor Culek

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -45 kg

Method Points 04:00 0–10

Marginal influence -3

Win

March 21, 2026 Adam Kotík

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -45 kg

Method Points 04:00 2–0

Marginal influence +8

Loss

March 7, 2026 Sevak Bagdasaryan

2026 AGF Prague Championships Gi Kids Challenger / Boys / Regular Challenger / Feather III (Up to 38.60 kg)

Method Submission 01:56 3–6

Marginal influence -5

Loss

March 7, 2026 Matyáš Barák

2026 AGF Prague Championships Gi Kids Challenger / Boys / Regular Challenger / Feather III (Up to 38.60 kg)

Method Submission 00:24 0–1

Marginal influence -2

Loss

March 7, 2026 Sevak Bagdasaryan

2026 AGF Prague Championships Gi Kids / Boys / Juniors (12 - 13 yrs) / Yellow / Feather III (Up to 38.60 kg)

Method Submission 00:52 1–2

Marginal influence -5

Loss

March 7, 2026 Ondřej Šatava

2026 AGF Prague Championships Gi Kids / Boys / Juniors (12 - 13 yrs) / Yellow / Feather III (Up to 38.60 kg)

Method Submission 03:00 0–14

Marginal influence -2

February 2026 6 new matches · 5 left period Change -5 Rating 1,382

Rating-period composition

Rating matches: 40 +1
Record: 19–21 Previous month 20–19
Opponents: 30 +1
Events: 15 +1

5 older matches left the 12-month period: 2 won and 3 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

February 21, 2026 Unknown opponent

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -45 kg

Method Submission 00:11 0–2

Marginal influence -2

Win

February 21, 2026 Tibor Culek

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -45 kg

Method Decision 04:00 0–0

Marginal influence +7

Loss

February 21, 2026 Marián Klimo

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -45 kg

Method Submission 03:55 0–19

Marginal influence -8

Loss

February 21, 2026 Unknown opponent

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -45 kg

Method Submission 00:17 0–2

Marginal influence -2

Loss

February 7, 2026 Matyas Divisek

Pardubice Grappling Open vol.5 Boys Junior GI / 11-12 years / -40 kg / Intermediate

Method Submission 01:27 0–0

Marginal influence -3

Loss

February 7, 2026 Matyas Divisek

Pardubice Grappling Open vol.5 Boys Junior GI / 11-12 years / -40 kg / Intermediate

Method Submission 00:52 0–0

Marginal influence -3

January 2026 4 new matches · 4 left period Change +20 Rating 1,387

Rating-period composition

Rating matches: 39 0
Record: 20–19 Previous month 19–20
Opponents: 29 +2
Events: 14 0

4 older matches left the 12-month period: 1 won and 3 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.

Win

January 24, 2026 Maximilian Fetting

GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -45 kg / Advanced

Method Submission 01:52 0–0

Marginal influence +7

Loss

January 24, 2026 Unknown opponent

GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -45 kg / Advanced

Method Submission 00:07 0–0

Marginal influence -2

Loss

January 24, 2026 Maximilian Fetting

GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -45 kg / Advanced

Method Submission 01:28 0–0

Marginal influence -6

Win

January 24, 2026 Unknown opponent

GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -45 kg / Advanced

Method Submission 01:48 3–2

Marginal influence +8

December 2025 5 new matches · 3 left period Change +13 Rating 1,367

Rating-period composition

Rating matches: 39 +2
Record: 19–20 Previous month 18–19
Opponents: 27 +1
Events: 14 +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.

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 Matyas Divisek

Christmas Kids Ground BJJ Tour - Finálové kolo 2025 Kluci (12, 13, 14 let) - Kimono / -42kg

Method Other recorded result 01:16 0–0

Marginal influence +9

Win

December 14, 2025 Adam Štiller

Christmas Kids Ground BJJ Tour - Finálové kolo 2025 Kluci (12, 13, 14 let) - Kimono / -42kg

Method Other recorded result 00:33 0–0

Marginal influence +8

Loss

December 14, 2025 Matyáš Barák

Christmas Kids Ground BJJ Tour - Finálové kolo 2025 Kluci (12, 13, 14 let) - Kimono / -42kg

Method Other recorded result 01:11 0–0

Marginal influence -2

Loss

December 6, 2025 Markó Rebeka

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -36 kg

Method Points 04:00 0–6

Marginal influence -8

Loss

December 6, 2025 Ondřej Šatava

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -36 kg

Method Submission 02:58 0–2

Marginal influence -3

November 2025 4 new matches Change -26 Rating 1,354

Rating-period composition

Rating matches: 37 +4
Record: 18–19 Previous month 17–16
Opponents: 26 +4
Events: 13 +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

November 23, 2025 Miroslav Streit

ADCC Czech National Championship 2025 Boys Junior / 11-12 years / Intermediate / -40 kg

Method Submission 00:34 0–0

Marginal influence -2

Loss

November 1, 2025 Artem Pashetnykh

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg

Method Points 04:00 0–2

Marginal influence -7

Loss

November 1, 2025 Petr Zajíc

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg

Method Submission 00:47 0–0

Marginal influence -9

Win

November 1, 2025 Eldar Sumoniuk

TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg

Method Submission 03:23 5–0

Marginal influence +9

October 2025 2 new matches · 6 left period Change +13 Rating 1,380

Rating-period composition

Rating matches: 33 -4
Record: 17–16 Previous month 18–19
Opponents: 22 -5
Events: 11 -1

6 older matches left the 12-month period: 3 won and 3 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.

Win

October 5, 2025 Jiří Blaschke

AOM Cup Kids 3 Boys Gi / White, Grey / U12 (2015,2014,2013) / - 38 kg

Method Submission 00:36 7–0

Marginal influence +5

Win

October 5, 2025 Jiří Blaschke

AOM Cup Kids 3 Boys Gi / White, Grey / U12 (2015,2014,2013) / - 38 kg

Method Submission 02:21 7–0

Marginal influence +5

September 2025 6 new matches · 2 left period Change -4 Rating 1,367

Rating-period composition

Rating matches: 37 +4
Record: 18–19 Previous month 17–16
Opponents: 27 +5
Events: 12 +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.

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

September 27, 2025 Unknown opponent

2025 AGF Prague Open Gi Kids / Boys / Juniors (12 - 13 yrs) / Yellow / Light I (Up to 43.10 kg)

Method Submission 01:20 6–1

Marginal influence +10

Loss

September 27, 2025 Ondřej Šatava

2025 AGF Prague Open Gi Kids / Boys / Juniors (12 - 13 yrs) / Yellow / Light I (Up to 43.10 kg)

Method Submission 02:17 1–9

Marginal influence -3

Loss

September 20, 2025 Zubayr Tsikhesashev

TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg

Method Submission 00:20 0–0

Marginal influence -2

Win

September 20, 2025 Jindřich Sochor

TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg

Method Submission 01:27 0–0

Marginal influence +9

Loss

September 20, 2025 Oliver Balej

TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg

Method Submission 00:56 0–0

Marginal influence -6

Loss

September 20, 2025 Platon Gorokhov

TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg

Method Submission 00:59 0–0

Marginal influence -8

Relevant matches: 26.6

Official ranking percentile: Top 52%

Performance: 4.0 pp below expectation

26.6 weighted matches against 30 different opponents across 15 events

Weighted win rate: 37.7%
Expected win rate: 41.7%
Average opponent rating: 1,357
Repeated-opponent share: 30.2%
Network connectivity: 80.9%