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David Zamrykot

Ultimate Gym Brno

W–L
8–4
Won and lost rating-eligible matches in the past 12 months.
Gi
1,400
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
6–4
Results from the ten most recent rating-eligible matches.
Opponents
10
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
1
Silver
1
Bronze
1
Total medals
3
Events with results
10

Full career record

Wins
16
Losses
26
Matches
42
Win rate
38.1%

Ways of winning

Submission
5
Points
4
Decision
4
Disqualification
0

Personal records

Longest winning streak
6
Longest submission streak
2
Longest gold streak
1

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
10
Distinct events
3

Ways of winning

  • Submission 4 50%
  • Points 2 25%
  • Decision 2 25%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1400
Record
8–4
Win rate
67%
Submission share
50%

No-Gi

Rating
-
Record
-
Win rate
-
Submission share
-

Win quality

Grouped by pre-match win probability. This provides context and does not award an extra rating bonus.

As underdog 0–0 Less than 35% expected win probability before the match.
Even match 0–0 Between 35% and 65% expected win probability before the match.
As favourite 0–0 More than 65% expected win probability before the match.

Development

Rating and development

The same published rating, supported by trend, opponent strength and evidence quality.

Current rating
1,400
Change over 90 days
+206
Highest rating in 12 months
1,414
Performance versus expectation
+8.7 pp
Schedule strength
Top 40%
Average opponent rating
1,332
Weighted win rate
70%
Expected win rate
61%
Repeat-opponent share
17%
Effective evidence
7.7
Confidence
82/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 7–5 7–5 across 12 rematches against 6 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #769 Ivan Bosneag · TATAMY 16 KIDS (No-GI and GI round robin) Dec 0–0
  2. #1240 Nikolaj Homonaj · TATAMY 18 KIDS (No-GI and GI round robin) Dec 0–0
  3. #1880 Kaisar Tanmagambetov · TATAMY 18 KIDS (No-GI and GI round robin) Sub 02:12 0–0
  4. #2076 Jakub Žitný · TATAMY 19: Czech Open Championship (kids) Sub 02:12 0–2 Earlier · Pts 5–0 December 6, 2025 · TATAMY 18 KIDS (No-GI and GI round robin)

Full career

  1. #769 Ivan Bosneag · TATAMY 16 KIDS (No-GI and GI round robin) Dec 0–0
  2. #1240 Nikolaj Homonaj · TATAMY 18 KIDS (No-GI and GI round robin) Dec 0–0
  3. #1745 Sofia Bozóová · TATAMY 7 (NO-GI and GI round robin) Pts 6–0
  4. #1880 Kaisar Tanmagambetov · TATAMY 18 KIDS (No-GI and GI round robin) Sub 02:12 0–0
  5. #2076 Jakub Žitný · TATAMY 19: Czech Open Championship (kids) Sub 02:12 0–2 Earlier · Pts 5–0 December 6, 2025 · TATAMY 18 KIDS (No-GI and GI round robin)

Rivals

Opponent Head-to-head record Matches
Baibars Khashev 0–2 2
Ivan Bosneag 1–1 2
Jakub Žitný 2–0 2

Around this athlete

Athlete Rank Rating
Xavi Fiets #820 1,400
David Zamrykot #821 1,400
Lya MARINE #822 1,400

Recent tournaments

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 1,400

Rating-period composition

Rating matches
12 0
Record
8–4 Previous month 8–4
Opponents
10 0
Events
3 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 1,400

Rating-period composition

Rating matches
12 0
Record
8–4 Previous month 8–4
Opponents
10 0
Events
3 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 -3 Rating 1,400

Rating-period composition

Rating matches
12 0
Record
8–4 Previous month 8–4
Opponents
10 0
Events
3 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 -8 Rating 1,403

Rating-period composition

Rating matches
12 0
Record
8–4 Previous month 8–4
Opponents
10 0
Events
3 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 0 Rating 1,411

Rating-period composition

Rating matches
12 0
Record
8–4 Previous month 8–4
Opponents
10 0
Events
3 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 1,411

Rating-period composition

Rating matches
12 0
Record
8–4 Previous month 8–4
Opponents
10 0
Events
3 0

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

February 2026 4 new matches · 4 left period Change +46 Rating 1,414

Rating-period composition

Rating matches
12 0
Record
8–4 Previous month 7–5
Opponents
10 0
Events
3 0

4 older matches left the 12-month period: 1 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.
Win
February 21, 2026 Kristián Leško
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
Method Points 04:00 9–0
Marginal influence +15
Loss
February 21, 2026 Matyas Divisek
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
Method Submission 03:54 0–7
Marginal influence -20
Loss
February 21, 2026 Unknown opponent
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
Method Submission 03:59 2–8
Marginal influence -17
Win
February 21, 2026 Jakub Žitný
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
Method Submission 02:12 0–2
Marginal influence +10
January 2026 No new matches Change 0 Rating 1,368

Rating-period composition

Rating matches
12 0
Record
7–5 Previous month 7–5
Opponents
10 0
Events
3 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 · 4 left period Change +158 Rating 1,368

Rating-period composition

Rating matches
12 0
Record
7–5 Previous month 3–9
Opponents
10 0
Events
3 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.
Win
December 6, 2025 Unknown opponent
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
Method Submission 00:38 0–0
Marginal influence +9
Win
December 6, 2025 Nikolaj Homonaj
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
Method Decision 04:00 0–0
Marginal influence +21
Win
December 6, 2025 Jakub Žitný
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
Method Points 04:00 5–0
Marginal influence +10
Win
December 6, 2025 Kaisar Tanmagambetov
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
Method Submission 02:12 0–0
Marginal influence +15
November 2025 No new matches Change 0 Rating 1,210

Rating-period composition

Rating matches
12 0
Record
3–9 Previous month 3–9
Opponents
10 0
Events
3 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 +2 Rating 1,210

Rating-period composition

Rating matches
12 0
Record
3–9 Previous month 3–9
Opponents
10 0
Events
3 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 +78 Rating 1,208

Rating-period composition

Rating matches
12 +4
Record
3–9 Previous month 1–7
Opponents
10 +2
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
September 20, 2025 Unknown opponent
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
Method Submission 00:31 0–0
Marginal influence -13
Loss
September 20, 2025 Unknown opponent
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
Method Submission 03:06 0–2
Marginal influence -13
Win
September 20, 2025 Ivan Bosneag
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
Method Decision 04:00 0–0
Marginal influence +18
Win
September 20, 2025 Vladimir Šaffa
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
Method Submission 00:48 0–0
Marginal influence +11
Relevant matches
7.7
Official ranking percentile
Top 27%
Performance
8.7 pp above expectation

7.7 weighted matches against 10 different opponents across 3 events

Weighted win rate
69.5%
Expected win rate
60.8%
Average opponent rating
1,332
Repeated-opponent share
16.7%
Network connectivity
80.9%

Classification evidence

Why U14?

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

  • U14 1 event vote Selected outcome

Registrations and outcomes

TATAMY 19: Czech Open Championship (kids)
U14 · Counts
Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
  • Competition age 12
TATAMY 18 KIDS (No-GI and GI round robin)
Does not count
Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
  • Competition age 11
TATAMY 16 KIDS (No-GI and GI round robin)
Does not count
Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
  • Competition age 11

Classification evidence

Why ≤ 45 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

  • ≤ 45 kg 1 competition event Selected outcome
  • ≤ 50 kg 2 competition events

Registrations and outcomes

TATAMY 19: Czech Open Championship (kids)
≤ 50 kg · Counts as a competition event
Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

4 matches in the rating period

TATAMY 18 KIDS (No-GI and GI round robin)
≤ 50 kg · Counts as a competition event
Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

4 matches in the rating period

TATAMY 16 KIDS (No-GI and GI round robin)
≤ 45 kg · Counts as a competition event
Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

4 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 12 matches in the rating period Selected outcome

Registrations and outcomes

TATAMY 19: Czech Open Championship (kids)
grey · Counts as a match
Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
  • Source belt category: grey

4 matches in the rating period

TATAMY 18 KIDS (No-GI and GI round robin)
grey · Counts as a match
Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
  • Source belt category: grey

4 matches in the rating period

TATAMY 16 KIDS (No-GI and GI round robin)
grey · Counts as a match
Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
  • Source belt category: grey

4 matches in the rating period