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Calculation details

Rating breakdown for the past 12 months

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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 1,431

Rating-period composition

Rating matches
39 0
Record
21–18 Previous month 21–18
Opponents
22 0
Events
16 0

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

July 2026 1 new match Change -11 Rating 1,432

Rating-period composition

Rating matches
39 +1
Record
21–18 Previous month 21–17
Opponents
22 +1
Events
16 +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
July 18, 2026 Ondřej Koudelka
STEEL CITY BJJ Gi Male / Rooster -57,5kg / White
Method Points 0–0
Marginal influence -12
June 2026 No new matches Change +1 Rating 1,443

Rating-period composition

Rating matches
38 0
Record
21–17 Previous month 21–17
Opponents
21 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.

May 2026 No new matches · 6 left period Change +51 Rating 1,442

Rating-period composition

Rating matches
38 -6
Record
21–17 Previous month 21–23
Opponents
21 -5
Events
15 -2

6 older matches left the 12-month period: 0 won and 6 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 +42 Rating 1,391

Rating-period composition

Rating matches
44 +4
Record
21–23 Previous month 17–23
Opponents
26 +2
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 Matej Cermak
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 13-14 years / Boy / -55 kg / Advanced
Method Points 04:00 6–2
Marginal influence +8
Win
April 25, 2026 Dmytro Yankovyi
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 13-14 years / Boy / -55 kg / Advanced
Method Submission 02:19 7–2
Marginal influence +4
Win
April 11, 2026 Matěj Plachý
Pardubice Grappling Open vol.6 Boys Junior GI / 13-14 years / -55 kg / Intermediate
Method Submission 03:31 0–0
Marginal influence +7
Win
April 11, 2026 Adam Dockal
Pardubice Grappling Open vol.6 Boys Junior GI / 13-14 years / -55 kg / Intermediate
Method Submission 00:38 0–0
Marginal influence +13
March 2026 4 new matches Change +20 Rating 1,349

Rating-period composition

Rating matches
40 +4
Record
17–23 Previous month 14–22
Opponents
24 +3
Events
15 +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 Jan Kubín
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 13-14 years / Boys / Yellow/orange/green belt / -55 kg
Method Submission 01:21 0–0
Marginal influence -4
Win
March 21, 2026 Dmytro Yankovyi
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 13-14 years / Boys / Yellow/orange/green belt / -55 kg
Method Points 04:00 3–2
Marginal influence +4
Win
March 7, 2026 Tomáš Fikr
2026 AGF Prague Championships Gi Kids / Boys / Teen (14 - 15 yrs) / Yellow / Middle II (Up to 61.20 kg)
Method Submission 03:07 16–0
Marginal influence +4
Win
March 7, 2026 Tomáš Fikr
2026 AGF Prague Championships Gi Kids / Boys / Teen (14 - 15 yrs) / Yellow / Middle II (Up to 61.20 kg)
Method Submission 00:53 4–0
Marginal influence +4
February 2026 4 new matches Change 0 Rating 1,329

Rating-period composition

Rating matches
36 +4
Record
14–22 Previous month 13–19
Opponents
21 0
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
February 21, 2026 Unknown opponent
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / Yellow/orange/green belt / -60 kg
Method Points 04:00 0–4
Marginal influence -5
Loss
February 21, 2026 Unknown opponent
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / Yellow/orange/green belt / -60 kg
Method Submission 03:44 2–3
Marginal influence -5
Win
February 7, 2026 Šimon Dyntar
Pardubice Grappling Open vol.5 Boys Junior GI / 13-14 years / -55 kg / Intermediate
Method Submission 00:25 0–0
Marginal influence +6
Loss
February 7, 2026 Miroslav Tichý
Pardubice Grappling Open vol.5 Boys Junior GI / 13-14 years / -55 kg / Intermediate
Method Submission 00:24 0–0
Marginal influence -8
January 2026 3 new matches Change +31 Rating 1,329

Rating-period composition

Rating matches
32 +3
Record
13–19 Previous month 11–18
Opponents
21 +1
Events
11 +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
January 24, 2026 Miroslav Tichý
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 13-14 years / Boy / -55 kg / Advanced
Method Points 04:00 9–0
Marginal influence +4
Win
January 24, 2026 Šimon Dyntar
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 13-14 years / Boy / -55 kg / Advanced
Method Submission 02:26 0–0
Marginal influence +5
Loss
January 24, 2026 Matej Cermak
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 13-14 years / Boy / -55 kg / Advanced
Method Submission 00:56 0–4
Marginal influence -4
December 2025 5 new matches Change -18 Rating 1,298

Rating-period composition

Rating matches
29 +5
Record
11–18 Previous month 10–14
Opponents
20 +3
Events
10 +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
December 14, 2025 Miroslav Tichý
Christmas Kids Ground BJJ Tour - Finálové kolo 2025 Kluci (12, 13, 14 let) - Kimono / -55kg
Method Other recorded result 00:55 0–10
Marginal influence -7
Win
December 14, 2025 Matyáš Dvořák
Christmas Kids Ground BJJ Tour - Finálové kolo 2025 Kluci (12, 13, 14 let) - Kimono / -55kg
Method Other recorded result 01:23 10–0
Marginal influence +3
Loss
December 14, 2025 Matej Cermak
Christmas Kids Ground BJJ Tour - Finálové kolo 2025 Kluci (12, 13, 14 let) - Kimono / -55kg
Method Other recorded result 01:42 0–10
Marginal influence -4
Loss
December 6, 2025 Semen Babailov
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / Yellow/orange/green belt / -55 kg
Method Points 04:00 0–3
Marginal influence -6
Loss
December 6, 2025 Semen Babailov
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / Yellow/orange/green belt / -55 kg
Method Submission 01:33 0–0
Marginal influence -6
November 2025 6 new matches Change +75 Rating 1,316

Rating-period composition

Rating matches
24 +6
Record
10–14 Previous month 6–12
Opponents
17 +3
Events
8 +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
November 23, 2025 Jakub Vodvářka
ADCC Czech National Championship 2025 Boys Junior / 13-14 years / Intermediate / -60 kg
Method Submission 01:32 0–0
Marginal influence -2
Loss
November 23, 2025 Unknown opponent
ADCC Czech National Championship 2025 Boys Junior / 13-14 years / Intermediate / -60 kg
Method Submission 03:28 0–0
Marginal influence -9
Win
November 1, 2025 Mikulas Kocik
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Points 04:00 3–0
Marginal influence +4
Win
November 1, 2025 Mikulas Kocik
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Submission 00:43 0–0
Marginal influence +4
Loss
November 1, 2025 Viktor Dengler
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Submission 01:19 0–0
Marginal influence -7
Win
November 1, 2025 Sebastian Sitsch
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Submission 00:13 0–0
Marginal influence +4
October 2025 6 new matches · 5 left period Change +73 Rating 1,241

Rating-period composition

Rating matches
18 +1
Record
6–12 Previous month 4–13
Opponents
14 -1
Events
6 0

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
October 19, 2025 Zaur Fotiadi
Ground Bjj Tour 4. - Only submission - Kladno Kluci (12, 13, 14 let) - Kimono / -55kg
Method Other recorded result 03:00 0–10
Marginal influence -3
Win
October 19, 2025 Zaur Fotiadi
Ground Bjj Tour 4. - Only submission - Kladno Kluci (12, 13, 14 let) - Kimono / -55kg
Method Other recorded result 02:35 10–0
Marginal influence +9
Loss
October 19, 2025 Zaur Fotiadi
Ground Bjj Tour 4. - Only submission - Kladno Kluci (12, 13, 14 let) - Kimono / -55kg
Method Other recorded result 03:00 0–10
Marginal influence -3
Win
October 5, 2025 Matyáš Dvořák
AOM Cup Kids 3 Boys Gi / White, Grey, Yellow / U15 (2012,2011,2010) / -56 kg
Method Submission 02:13 6–0
Marginal influence +3
Win
October 5, 2025 Jakub Vodvářka
AOM Cup Kids 3 Boys Gi / White, Grey, Yellow / U15 (2012,2011,2010) / -56 kg
Method Points 04:00 9–2
Marginal influence +6
Win
October 5, 2025 Jiří Váňa
AOM Cup Kids 3 Boys Gi / White, Grey, Yellow / U15 (2012,2011,2010) / -56 kg
Method Points 04:00 9–0
Marginal influence +6
September 2025 6 new matches · 2 left period Change +69 Rating 1,168

Rating-period composition

Rating matches
17 +4
Record
4–13 Previous month 2–11
Opponents
15 +3
Events
6 +1

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 27, 2025 Unknown opponent
2025 AGF Prague Open Gi Kids / Boys / Teen (14 - 15 yrs) / Gray / Middle II (Up to 61.20 kg)
Method Submission 00:21 0–1
Marginal influence -5
Loss
September 27, 2025 Unknown opponent
2025 AGF Prague Open Gi Kids / Boys / Teen (14 - 15 yrs) / Gray / Middle II (Up to 61.20 kg)
Method Submission 00:21 0–0
Marginal influence -5
Win
September 20, 2025 Vratko Pjontek
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Submission 02:24 2–0
Marginal influence +5
Loss
September 20, 2025 Unknown opponent
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Submission 00:55 0–0
Marginal influence -4
Loss
September 20, 2025 Vojtěch Kotula
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Submission 00:18 0–0
Marginal influence -10
Win
September 20, 2025 Michal Studnica
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Points 04:00 2–0
Marginal influence +6
Relevant matches
23.6
Official ranking percentile
Top 19%
Performance
4.1 pp above expectation

23.6 weighted matches against 22 different opponents across 16 events

Weighted win rate
55.6%
Expected win rate
51.5%
Average opponent rating
1,344
Repeated-opponent share
43.6%
Network connectivity
80.9%