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Polina Dacheva

Naru BJJ and Self-Defence

W–L
0–7
Won and lost rating-eligible matches in the past 12 months.
Gi
1,078
Rating based on Gi matches in the past 12 months.
No-Gi
-
Rating based on No-Gi matches in the past 12 months.
Current form
0–7
Results from the ten most recent rating-eligible matches.
Opponents
4
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

8
Indexed competition matches
Date Opponent Result Event Division
2026-04-25 Dominika Krausová
Loss
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi · Gi / 10-12 years / Girl / +50 kg / Beginner
2026-04-25 Ema Sehořová
Loss
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi · Gi / 10-12 years / Girl / +50 kg / Beginner
2026-03-07 Bibiana Dvořáková
Loss
2026 AGF Prague Championships Gi · Gi Kids / Girls / Juniors (12 - 13 yrs) / Yellow / Middle I (Up to 56.70 kg)
2026-03-07 Bibiana Dvořáková
Loss
2026 AGF Prague Championships Gi · Gi Kids / Girls / Juniors (12 - 13 yrs) / Yellow / Middle I (Up to 56.70 kg)
2025-11-01 Ema Sehořová
Loss
TATAMY 17 KIDS (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Girls / White/grey belt / +50 kg
2025-11-01 Jaroslava Dubeniuk
Loss
TATAMY 17 KIDS (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Girls / White/grey belt / +50 kg
2025-09-27 Tereza Matějková
Loss
2025 AGF Prague Open Gi · Gi Kids / Girls / Juniors (12 - 13 yrs) / Gray / Middle I (Up to 56.70 kg)
2025-09-27 Tereza Matějková
Loss
2025 AGF Prague Open Gi · Gi Kids / Girls / Juniors (12 - 13 yrs) / Gray / Middle I (Up to 56.70 kg)

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 1,078

Rating-period composition

Rating matches
7 0
Record
0–7 Previous month 0–7
Opponents
4 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.

July 2026 No new matches Change 0 Rating 1,078

Rating-period composition

Rating matches
7 0
Record
0–7 Previous month 0–7
Opponents
4 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.

June 2026 No new matches Change -4 Rating 1,078

Rating-period composition

Rating matches
7 0
Record
0–7 Previous month 0–7
Opponents
4 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.

May 2026 No new matches Change +4 Rating 1,082

Rating-period composition

Rating matches
7 0
Record
0–7 Previous month 0–7
Opponents
4 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.

April 2026 2 new matches Change -40 Rating 1,078

Rating-period composition

Rating matches
7 +2
Record
0–7 Previous month 0–5
Opponents
4 +1
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.
Loss
April 25, 2026 Dominika Krausová
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Girl / +50 kg / Beginner
Method Disqualification 02:47 0–0
Marginal influence -49
Loss
April 25, 2026 Ema Sehořová
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Girl / +50 kg / Beginner
Method Submission 01:21 0–7
Marginal influence -11
March 2026 2 new matches Change -1 Rating 1,118

Rating-period composition

Rating matches
5 +2
Record
0–5 Previous month 0–3
Opponents
3 +1
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
March 7, 2026 Unknown opponent
2026 AGF Prague Championships Gi Kids / Girls / Juniors (12 - 13 yrs) / Yellow / Middle I (Up to 56.70 kg)
Method Submission 00:55 0–8
Marginal influence -4
Loss
March 7, 2026 Unknown opponent
2026 AGF Prague Championships Gi Kids / Girls / Juniors (12 - 13 yrs) / Yellow / Middle I (Up to 56.70 kg)
Method Submission 00:36 0–8
Marginal influence -4
February 2026 No new matches Change +4 Rating 1,119

Rating-period composition

Rating matches
3 0
Record
0–3 Previous month 0–3
Opponents
2 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 -1 Rating 1,115

Rating-period composition

Rating matches
3 0
Record
0–3 Previous month 0–3
Opponents
2 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 1,116

Rating-period composition

Rating matches
3 0
Record
0–3 Previous month 0–3
Opponents
2 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 1 new match Change -17 Rating 1,116

Rating-period composition

Rating matches
3 +1
Record
0–3 Previous month 0–2
Opponents
2 +1
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
November 1, 2025 Ema Sehořová
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Girls / White/grey belt / +50 kg
Method Submission 01:14 0–0
Marginal influence -11
October 2025 No new matches Change +4 Rating 1,133

Rating-period composition

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

September 2025 2 new matches Change Starting point Rating 1,129

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 Tereza Matějková
2025 AGF Prague Open Gi Kids / Girls / Juniors (12 - 13 yrs) / Gray / Middle I (Up to 56.70 kg)
Method Submission 02:38 1–7
Marginal influence -11
Loss
September 27, 2025 Tereza Matějková
2025 AGF Prague Open Gi Kids / Girls / Juniors (12 - 13 yrs) / Gray / Middle I (Up to 56.70 kg)
Method Points 03:00 0–4
Marginal influence -11
Relevant matches
4.5
Official ranking percentile
Top 99%
Performance
-

4.5 weighted matches against 4 different opponents across 4 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,352
Repeated-opponent share
42.9%
Network connectivity
80.9%

Classification evidence

Why U12?

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

  • U12 2 event votes Selected outcome

Registrations and outcomes

GRIND 13 Kids (NO-GI & GI ROUND ROBIN)
U12 · Counts
Gi / 10-12 years / Girl / +50 kg / Beginner
  • Competition age 11
2026 AGF Prague Championships
U12 · Counts
Gi Kids / Girls / Juniors (12 - 13 yrs) / Yellow / Middle I (Up to 56.70 kg)
  • Competition age 11
  • Registered age: u14
  • Source category: u14
TATAMY 17 KIDS (No-GI and GI round robin)
Does not count
Kids / Gi / 10-12 years / Girls / White/grey belt / +50 kg
  • Competition age 10
2025 AGF Prague Open
Does not count
Competition T-shirt / Youth Large
Gi Kids / Girls / Juniors (12 - 13 yrs) / Gray / Middle I (Up to 56.70 kg)
  • Competition age 10
  • Registered age: u14
  • Source category: u14

Classification evidence

Why ≤ 57 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

  • ≤ 57 kg 2 competition events Selected outcome

Registrations and outcomes

GRIND 13 Kids (NO-GI & GI ROUND ROBIN)
Does not count
Gi / 10-12 years / Girl / +50 kg / Beginner
  • Registered weight class: +50 kg
  • Source competition limit: +50 kg

2 matches in the rating period · weight class could not be normalized reliably

2026 AGF Prague Championships
≤ 57 kg · Counts as a competition event
Gi Kids / Girls / Juniors (12 - 13 yrs) / Yellow / Middle I (Up to 56.70 kg)
  • Registered weight class: Middle I (Up to 56.70 kg)
  • Source competition limit: Middle I (Up to 56.70 kg)

2 matches in the rating period

TATAMY 17 KIDS (No-GI and GI round robin)
Does not count
Kids / Gi / 10-12 years / Girls / White/grey belt / +50 kg
  • Registered weight class: +50 kg
  • Source competition limit: +50 kg

1 match in the rating period · weight class could not be normalized reliably

2025 AGF Prague Open
Does not count
Competition T-shirt / Youth Large

No matches in the rating period · no valid weight evidence

2025 AGF Prague Open
≤ 57 kg · Counts as a competition event
Gi Kids / Girls / Juniors (12 - 13 yrs) / Gray / Middle I (Up to 56.70 kg)
  • Registered weight class: Middle I (Up to 56.70 kg)
  • Source competition limit: Middle I (Up to 56.70 kg)

2 matches in the rating period

Classification evidence

Why Grey?

This outcome uses the belt category of every rating-eligible match from 2025-09-01 through 2026-08-31. The most-fought category is selected; the newest evidence breaks a tie.

Evidence outcome

  • grey 3 matches in the rating period Selected outcome
  • yellow 2 matches in the rating period

Registrations and outcomes

2026 AGF Prague Championships
yellow · Counts as a match
Gi Kids / Girls / Juniors (12 - 13 yrs) / Yellow / Middle I (Up to 56.70 kg)
  • Source belt category: yellow

2 matches in the rating period

TATAMY 17 KIDS (No-GI and GI round robin)
grey · Counts as a match
Kids / Gi / 10-12 years / Girls / White/grey belt / +50 kg
  • Source belt category: grey

1 match in the rating period

2025 AGF Prague Open
grey · Counts as a match
Gi Kids / Girls / Juniors (12 - 13 yrs) / Gray / Middle I (Up to 56.70 kg)
  • Source belt category: grey

2 matches in the rating period