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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 0 Rating 1,410

Rating-period composition

Rating matches
24 0
Record
17–7 Previous month 17–7
Opponents
14 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.

July 2026 No new matches Change -1 Rating 1,410

Rating-period composition

Rating matches
24 0
Record
17–7 Previous month 17–7
Opponents
14 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 -1 Rating 1,411

Rating-period composition

Rating matches
24 0
Record
17–7 Previous month 17–7
Opponents
14 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 · 5 left period Change -18 Rating 1,412

Rating-period composition

Rating matches
24 -5
Record
17–7 Previous month 19–10
Opponents
14 -4
Events
5 -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.

April 2026 6 new matches Change +19 Rating 1,430

Rating-period composition

Rating matches
29 +6
Record
19–10 Previous month 14–9
Opponents
18 +2
Events
6 +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
April 25, 2026 Šimon Mareček
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -32 kg / Mixed (4 - 9 years)
Method Points 03:00 7–0
Marginal influence +4
Loss
April 25, 2026 Matyas Habich
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -32 kg / Mixed (4 - 9 years)
Method Submission 03:00 0–2
Marginal influence -8
Win
April 25, 2026 Oliver Brychcin
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -32 kg / Mixed (4 - 9 years)
Method Submission 00:11 2–0
Marginal influence +8
Win
April 25, 2026 Kryštof Kubák
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -32 kg / Mixed (4 - 9 years)
Method Submission 00:36 2–0
Marginal influence +9
Win
April 25, 2026 Matyas Habich
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -32 kg / Mixed (4 - 9 years)
Method Decision 03:00 2–2
Marginal influence +8
Win
April 25, 2026 Šimon Mareček
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -32 kg / Mixed (4 - 9 years)
Method Points 03:00 6–0
Marginal influence +4
March 2026 4 new matches · 7 left period Change -10 Rating 1,411

Rating-period composition

Rating matches
23 -3
Record
14–9 Previous month 17–9
Opponents
16 -2
Events
5 -1

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.
Win
March 21, 2026 Šimon Mareček
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg
Method Points 03:00 7–0
Marginal influence +4
Loss
March 21, 2026 Jiří Hanusek
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg
Method Decision 03:00 0–0
Marginal influence -12
Win
March 21, 2026 Vojtěch Šatava
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg
Method Points 03:00 3–0
Marginal influence +23
Win
March 21, 2026 Matouš Hlaváček
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg
Method Points 03:00 3–0
Marginal influence +7
February 2026 3 new matches Change -41 Rating 1,421

Rating-period composition

Rating matches
26 +3
Record
17–9 Previous month 17–6
Opponents
18 +3
Events
6 +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
February 21, 2026 Daniil Riabushkin
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 7-9 years / Mix / All levels / -32 kg
Method Submission 02:38 0–5
Marginal influence -18
Loss
February 21, 2026 Alexander Polák
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 7-9 years / Mix / All levels / -32 kg
Method Points 03:00 2–7
Marginal influence -21
Loss
February 21, 2026 Jiří Hanusek
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 7-9 years / Mix / All levels / -32 kg
Method Submission 02:21 2–18
Marginal influence -13
January 2026 6 new matches · 3 left period Change +73 Rating 1,462

Rating-period composition

Rating matches
23 +3
Record
17–6 Previous month 12–8
Opponents
15 -1
Events
5 0

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
January 24, 2026 Unknown opponent
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -32 kg / Mixed (4 - 9 years)
Method Points 03:00 6–2
Marginal influence +6
Win
January 24, 2026 Matyas Habich
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -32 kg / Mixed (4 - 9 years)
Method Submission 00:26 0–3
Marginal influence +8
Win
January 24, 2026 Matyas Habich
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -32 kg / Mixed (4 - 9 years)
Method Submission 00:24 0–2
Marginal influence +8
Win
January 24, 2026 Šimon Mareček
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -32 kg / Mixed (4 - 9 years)
Method Points 03:00 11–0
Marginal influence +4
Win
January 24, 2026 Unknown opponent
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -32 kg / Mixed (4 - 9 years)
Method Submission 01:01 3–0
Marginal influence +6
Win
January 24, 2026 Amir Andrešev
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -32 kg / Mixed (4 - 9 years)
Method Submission 00:20 2–0
Marginal influence +8
December 2025 No new matches Change +7 Rating 1,389

Rating-period composition

Rating matches
20 0
Record
12–8 Previous month 12–8
Opponents
16 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.

November 2025 5 new matches · 2 left period Change +14 Rating 1,382

Rating-period composition

Rating matches
20 +3
Record
12–8 Previous month 10–7
Opponents
16 +2
Events
5 0

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.
Loss
November 1, 2025 Vojtěch Jána
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg
Method Submission 00:46 1–0
Marginal influence -7
Win
November 1, 2025 Mahulena Pirklová
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg
Method Submission 02:31 3–0
Marginal influence +13
Loss
November 1, 2025 Mikołaj Jeznach
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg
Method Decision 03:00 0–0
Marginal influence -21
Win
November 1, 2025 Šimon Mareček
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg
Method Submission 00:20 0–0
Marginal influence +4
Win
November 1, 2025 Unknown opponent
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -32 kg
Method Submission 00:12 0–0
Marginal influence +6
October 2025 No new matches Change -4 Rating 1,368

Rating-period composition

Rating matches
17 0
Record
10–7 Previous month 10–7
Opponents
14 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.

September 2025 No new matches · 4 left period Change -19 Rating 1,372

Rating-period composition

Rating matches
17 -4
Record
10–7 Previous month 12–9
Opponents
14 -4
Events
5 -1

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

Relevant matches
11.8
Official ranking percentile
Top 24%
Performance
0.2 pp above expectation

11.8 weighted matches against 14 different opponents across 5 events

Weighted win rate
64.7%
Expected win rate
64.5%
Average opponent rating
1,349
Repeated-opponent share
41.7%
Network connectivity
80.9%