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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 1,154

Rating-period composition

Rating matches
20 0
Record
4–16 Previous month 4–16
Opponents
15 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 -2 Rating 1,154

Rating-period composition

Rating matches
20 0
Record
4–16 Previous month 4–16
Opponents
15 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 1,156

Rating-period composition

Rating matches
20 0
Record
4–16 Previous month 4–16
Opponents
15 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 +7 Rating 1,154

Rating-period composition

Rating matches
20 0
Record
4–16 Previous month 4–16
Opponents
15 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 No new matches Change -1 Rating 1,147

Rating-period composition

Rating matches
20 0
Record
4–16 Previous month 4–16
Opponents
15 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.

March 2026 4 new matches Change +3 Rating 1,148

Rating-period composition

Rating matches
20 +4
Record
4–16 Previous month 3–13
Opponents
15 0
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
March 21, 2026 Denis Krejčík
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Points 04:00 0–4
Marginal influence -6
Loss
March 21, 2026 Jan Vaculík
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Points 04:00 8–20
Marginal influence -8
Win
March 21, 2026 Jakub Kmec
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Submission 00:38 0–2
Marginal influence +16
Loss
March 21, 2026 Artem Bondarenko
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Submission 03:08 0–14
Marginal influence -6
February 2026 4 new matches · 4 left period Change +30 Rating 1,145

Rating-period composition

Rating matches
16 0
Record
3–13 Previous month 2–14
Opponents
15 0
Events
4 0

4 older matches left the 12-month period: 0 won and 4 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 Vojtěch Kotula
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Points 04:00 2–20
Marginal influence -9
Win
February 21, 2026 Richard Šumbera
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Disqualification 03:15 11–9
Marginal influence +19
Loss
February 21, 2026 Jakub Kmec
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Points 04:00 0–10
Marginal influence -11
Loss
February 21, 2026 Denis Krejčík
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Submission 01:09 0–2
Marginal influence -6
January 2026 No new matches Change -1 Rating 1,115

Rating-period composition

Rating matches
16 0
Record
2–14 Previous month 2–14
Opponents
15 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 4 new matches Change +36 Rating 1,116

Rating-period composition

Rating matches
16 +4
Record
2–14 Previous month 1–11
Opponents
15 +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
December 6, 2025 Jan Vaculík
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Submission 00:37 0–0
Marginal influence +19
Loss
December 6, 2025 Unknown opponent
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Submission 00:46 0–0
Marginal influence -6
Loss
December 6, 2025 Adam Šamárek
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Submission 02:01 0–0
Marginal influence -5
Loss
December 6, 2025 Matous Novak
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Submission 01:33 0–0
Marginal influence -9
November 2025 4 new matches Change +15 Rating 1,080

Rating-period composition

Rating matches
12 +4
Record
1–11 Previous month 0–8
Opponents
12 +4
Events
3 +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
November 1, 2025 Yroslav Pashetnykh
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Submission 03:41 2–4
Marginal influence -9
Loss
November 1, 2025 Krystof Rompot
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Points 04:00 0–5
Marginal influence -7
Win
November 1, 2025 Marek Kostyak
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Submission 03:44 2–0
Marginal influence +24
Loss
November 1, 2025 Oleksandr Savych Ryba
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Points 04:00 2–7
Marginal influence -16
October 2025 No new matches Change +1 Rating 1,065

Rating-period composition

Rating matches
8 0
Record
0–8 Previous month 0–8
Opponents
8 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.

September 2025 4 new matches Change -44 Rating 1,064

Rating-period composition

Rating matches
8 +4
Record
0–8 Previous month 0–4
Opponents
8 +4
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.
Loss
September 20, 2025 Teo Harmat
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Points 04:00 0–3
Marginal influence -11
Loss
September 20, 2025 Adam Šamárek
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Points 04:00 0–13
Marginal influence -5
Loss
September 20, 2025 Tykhon Mernenko
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Submission 00:24 0–0
Marginal influence -7
Loss
September 20, 2025 Artem Bondarenko
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
Method Submission 02:08 0–0
Marginal influence -7
Relevant matches
12.1
Official ranking percentile
Top 94%
Performance
15.7 pp below expectation

12.1 weighted matches against 15 different opponents across 5 events

Weighted win rate
20.4%
Expected win rate
36.1%
Average opponent rating
1,314
Repeated-opponent share
25.0%
Network connectivity
80.9%