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PL

Borys Chaława

Checkmat Poznań

W–L
0–1
Won and lost rating-eligible matches in the past 12 months.
Gi
-
Rating based on Gi matches in the past 12 months.
No-Gi
1,145
Rating based on No-Gi matches in the past 12 months.
Current form
0–1
Results from the ten most recent rating-eligible matches.
Opponents
1
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

7
Events
Date Event Result Format Division
ADCC European, Middle East & African Championship 2025 PL · No-Gi · 13–14 yo · ≤55 kg 0–1 W–L: Win / Loss No-Gi
  • Place #9
ADCC Amateur World Championship 2025 PL · No-Gi · 13–14 yo · ≤55 kg 0–1 W–L: Win / Loss No-Gi
  • Place #5
NAGA Amsterdam Grappling Championship the Netherlands · Gi · 12–13 yo · 45–49.9 kg ; No-Gi · 12–13 yo · 45–49.9 kg 3–0 W–L: Win / Loss GiNo-Gi
  • Children No-Gi (Male) / Expert / 45 - 49.9 / 12-13 years
  • Children Gi (Male) / Expert / 45 - 49.9 / 12-13 years
ADCC Amateur World Championship 2024 PL · No-Gi · 11–12 yo · ≤45 kg 3–0 W–L: Win / Loss No-Gi
  • Boys 11-12 years / Beginner / -45 kg
NAGA Germany Grappling Championship Germany · Gi · 10–11 yo · 35–39.9 kg ; No-Gi · 10–11 yo · 35–39.9 kg 1–2 W–L: Win / Loss GiNo-Gi
  • Children No-Gi (Male) / Expert / 35 - 39.9 / 10-11 years
  • Place #5
NAGA Luxembourg Grappling Championship Luxembourg · Gi · 10–11 yo · 35–39.9 kg ; No-Gi · 10–11 yo · 35–39.9 kg 2–2 W–L: Win / Loss GiNo-Gi
  • Place #5
  • Children Gi (Male) / Expert / 35 - 39.9 / 10-11 years
KARL-MARX CUP 2020 GI & NOGI *CASH PRICES + POKAL Germany · ≤32 kg 3–0 W–L: Win / Loss
  • Pee-Wee (Boys & Girls) / - 32Kg Lightweight - BEGINNERS (bis 1,5 Jahre Erfahrung)

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 0 Rating 1,145

Rating-period composition

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

July 2026 No new matches Change 0 Rating 1,145

Rating-period composition

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

June 2026 No new matches Change 0 Rating 1,145

Rating-period composition

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

May 2026 No new matches · 1 left period Change 0 Rating 1,145

Rating-period composition

Rating matches
1 -1
Record
0–1 Previous month 0–2
Opponents
1 0
Events
1 -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.

April 2026 No new matches Change -1 Rating 1,145

Rating-period composition

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

March 2026 No new matches Change -3 Rating 1,146

Rating-period composition

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

February 2026 No new matches Change 0 Rating 1,149

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
Opponents
1 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 0 Rating 1,149

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
Opponents
1 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 No new matches Change 0 Rating 1,149

Rating-period composition

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

November 2025 No new matches Change 0 Rating 1,149

Rating-period composition

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

October 2025 No new matches Change 0 Rating 1,149

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
Opponents
1 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 1 new match Change 0 Rating 1,149

Rating-period composition

Rating matches
2 +1
Record
0–2 Previous month 0–1
Opponents
1 0
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 6, 2025 Sviatoslav Malafii
ADCC European, Middle East & African Championship 2025 Boys 13-14 years / Beginner / -55 kg
Method Submission 02:23 0–0
Marginal influence -26
Relevant matches
1
Official ranking percentile
-
Performance
-

1 weighted matches against 1 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,507
Repeated-opponent share
0.0%
Network connectivity
80.9%

Classification evidence

Why U16?

Within the published period from 2025-09-01 through 2026-08-31, only competition ages recorded at events in the calculation year determine this outcome, with at most one vote per event. Without such an age, the most recent unambiguous earlier competition age is projected to the calculation year; bracket evidence is the final fallback. The newest evidence breaks a tie.

Evidence outcome

  • U16 1 event vote Selected outcome

Registrations and outcomes

ADCC European, Middle East & African Championship 2025
U16 · Counts
Boys 13-14 years / Beginner / -55 kg
  • Competition age 13

Classification evidence

Why ≤ 55 kg?

This outcome uses at most one unambiguous upper weight limit per completed ranking event from 2025-09-01 through 2026-08-31. Only the three most recent eligible events are considered, and the lightest verified upper limit is selected. A higher division is not treated as measured body weight.

Evidence outcome

  • ≤ 55 kg 1 competition event Selected outcome

Registrations and outcomes

ADCC European, Middle East & African Championship 2025
≤ 55 kg · Counts as a competition event
Boys 13-14 years / Beginner / -55 kg
  • Registered weight class: -55 kg
  • Source competition limit: -55 kg

1 match in the rating period