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Tomáš Kozák

Octopus Liberec

W–L
5–1
Won and lost rating-eligible matches in the past 12 months.
Gi
1,370
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
5–1
Results from the ten most recent rating-eligible matches.
Opponents
5
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
0
Silver
1
Bronze
0
Total medals
1
Events with results
1

Full career record

Wins
5
Losses
1
Matches
6
Win rate
83.3%

Ways of winning

Submission
2
Points
3
Decision
0
Disqualification
0

Personal records

Longest winning streak
4
Longest submission streak
1

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
4
Unique opponents
5
Distinct events
1

Ways of winning

  • Submission 2 40%
  • Points 3 60%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1370
Record
5–1
Win rate
83%
Submission share
40%

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
1,370
Change over 90 days
-
Highest rating in 12 months
1,364
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,310
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
17%
Effective evidence
3.5
Confidence
55/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 1–1 1–1 across 2 rematches against 1 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #318 Roman Marčenko · GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Sub 03:02 2–0
  2. #486 Nicolas Bonetti · GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Pts 6–0
  3. #2480 Tobiáš Blahník · GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Sub 02:43 6–0
  4. #2533 Filip Vicány · GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Pts 6–0

Full career

  1. #318 Roman Marčenko · GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Sub 03:02 2–0
  2. #486 Nicolas Bonetti · GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Pts 6–0
  3. #2480 Tobiáš Blahník · GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Sub 02:43 6–0
  4. #2533 Filip Vicány · GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Pts 6–0

Rivals

Opponent Head-to-head record Matches
Roman Marčenko 1–1 2

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 +3 Rating 1,370

Rating-period composition

Rating matches
6 0
Record
5–1 Previous month 5–1
Opponents
5 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 +7 Rating 1,367

Rating-period composition

Rating matches
6 0
Record
5–1 Previous month 5–1
Opponents
5 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 1,360

Rating-period composition

Rating matches
6 0
Record
5–1 Previous month 5–1
Opponents
5 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 Change -4 Rating 1,360

Rating-period composition

Rating matches
6 0
Record
5–1 Previous month 5–1
Opponents
5 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.

April 2026 6 new matches Change Starting point Rating 1,364

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 Roman Marčenko
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -36 kg / Beginner
Method Submission 03:02 2–0
Marginal influence +29
Win
April 25, 2026 Filip Vicány
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -36 kg / Beginner
Method Points 04:00 6–0
Marginal influence +17
Win
April 25, 2026 Tobiáš Blahník
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -36 kg / Beginner
Method Submission 02:43 6–0
Marginal influence +14
Win
April 25, 2026 Patrik Chroust
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -36 kg / Beginner
Method Points 04:00 6–0
Marginal influence +14
Loss
April 25, 2026 Roman Marčenko
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -36 kg / Beginner
Method Submission 00:25 0–0
Marginal influence -21
Win
April 25, 2026 Nicolas Bonetti
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 10-12 years / Boy / -36 kg / Beginner
Method Points 04:00 6–0
Marginal influence +34
Relevant matches
3.5
Official ranking percentile
-
Performance
-

3.5 weighted matches against 5 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,310
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

GRIND 13 Kids (NO-GI & GI ROUND ROBIN)
U14 · Counts
Gi / 10-12 years / Boy / -36 kg / Beginner
  • Competition age 12

Classification evidence

Why ≤ 36 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

  • ≤ 36 kg 1 competition event Selected outcome

Registrations and outcomes

GRIND 13 Kids (NO-GI & GI ROUND ROBIN)
≤ 36 kg · Counts as a competition event
Gi / 10-12 years / Boy / -36 kg / Beginner
  • Registered weight class: -36 kg
  • Source competition limit: -36 kg

6 matches in the rating period