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Jakub Zadina

SLON GYM PRAHA

W–L
4–4
Won and lost rating-eligible matches in the past 12 months.
Gi
-
Rating based on Gi matches in the past 12 months.
No-Gi
1,301
Rating based on No-Gi matches in the past 12 months.
Current form
4–4
Results from the ten most recent rating-eligible matches.
Opponents
7
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
1
Silver
0
Bronze
1
Total medals
2
Events with results
3

Full career record

Wins
4
Losses
4
Matches
8
Win rate
50.0%

Ways of winning

Submission
3
Points
0
Decision
1
Disqualification
0

Personal records

Longest winning streak
2
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
7
Distinct events
3

Ways of winning

  • Submission 3 75%
  • Points 0 0%
  • Decision 1 25%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
-
Record
-
Win rate
-
Submission share
-

No-Gi

Rating
1301
Record
4–4
Win rate
50%
Submission share
75%

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
1,301
Change over 90 days
-
Highest rating in 12 months
1,314
Performance versus expectation
+15.7 pp
Schedule strength
Top 44%
Average opponent rating
1,327
Weighted win rate
54%
Expected win rate
38%
Repeat-opponent share
13%
Effective evidence
5.7
Confidence
74/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 0–2 0–2 across 2 rematches against 1 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #888 David Mařík · CZECH FIGHTING SERIES 12 – Under the Lights 2026 Sub 01:05 0–0
  2. #2913 Filip Linka · CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Sub 01:33 2–0
  3. #2976 Ondřej Palus · CZECH FIGHTING SERIES 12 – Under the Lights 2026 Sub 00:12 4–0

Full career

  1. #888 David Mařík · CZECH FIGHTING SERIES 12 – Under the Lights 2026 Sub 01:05 0–0
  2. #2913 Filip Linka · CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Sub 01:33 2–0
  3. #2976 Ondřej Palus · CZECH FIGHTING SERIES 12 – Under the Lights 2026 Sub 00:12 4–0

Rivals

Opponent Head-to-head record Matches
David Seifert 0–2 2

Around this athlete

Athlete Rank Rating
Jessey De Ruiter #1813 1,301
Jakub Zadina #1814 1,301
Mia Brito #1815 1,301

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 1,301

Rating-period composition

Rating matches
8 0
Record
4–4 Previous month 4–4
Opponents
7 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 +1 Rating 1,301

Rating-period composition

Rating matches
8 0
Record
4–4 Previous month 4–4
Opponents
7 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 0 Rating 1,300

Rating-period composition

Rating matches
8 0
Record
4–4 Previous month 4–4
Opponents
7 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 -4 Rating 1,300

Rating-period composition

Rating matches
8 0
Record
4–4 Previous month 4–4
Opponents
7 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 4 new matches Change +51 Rating 1,304

Rating-period composition

Rating matches
8 +4
Record
4–4 Previous month 2–2
Opponents
7 +3
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
April 12, 2026 David Seifert
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Grappling NoGi / U15 Junioři chlapci / -45 kg
Method Decision 0–0
Marginal influence -19
Win
April 12, 2026 Lukáš Kasík
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Grappling NoGi / U15 Junioři chlapci / -45 kg
Method Decision 0–0
Marginal influence +20
Loss
April 12, 2026 Matyáš Barák
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Grappling NoGi / U15 Junioři chlapci / -45 kg
Method Points 02:00 0–6
Marginal influence -11
Win
April 12, 2026 Filip Linka
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Grappling NoGi / U15 Junioři chlapci / -45 kg
Method Submission 01:33 2–0
Marginal influence +18
March 2026 2 new matches Change -61 Rating 1,253

Rating-period composition

Rating matches
4 +2
Record
2–2 Previous month 2–0
Opponents
4 +2
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
March 21, 2026 David Seifert
TATAMY 20: PRAGUE - KIDS (round robin) Kids / No Gi / 13-14 years / Boys / Beginner / -45 kg
Method Points 04:00 0–2
Marginal influence -23
Loss
March 21, 2026 Nikolas Soudný
TATAMY 20: PRAGUE - KIDS (round robin) Kids / No Gi / 13-14 years / Boys / Beginner / -45 kg
Method Submission 00:14 0–0
Marginal influence -33
February 2026 2 new matches Change Starting point Rating 1,314

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 28, 2026 David Mařík
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Grappling NoGi / U15 Junioři chlapci / -40 kg
Method Submission 01:05 0–0
Marginal influence +43
Win
February 28, 2026 Ondřej Palus
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Grappling NoGi / U15 Junioři chlapci / -40 kg
Method Submission 00:12 4–0
Marginal influence +20
Relevant matches
5.7
Official ranking percentile
Top 60%
Performance
15.7 pp above expectation

5.7 weighted matches against 7 different opponents across 3 events

Weighted win rate
54.0%
Expected win rate
38.2%
Average opponent rating
1,327
Repeated-opponent share
12.5%
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 3 event votes Selected outcome

Registrations and outcomes

CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026
U16 · Counts
Grappling NoGi / U15 Junioři chlapci / -45 kg
  • Competition age 14
  • Registered age: u16
  • Source category: u16
TATAMY 20: PRAGUE - KIDS (round robin)
U16 · Counts
Kids / No Gi / 13-14 years / Boys / Beginner / -45 kg
  • Competition age 14
CZECH FIGHTING SERIES 12 – Under the Lights 2026
U16 · Counts
Grappling NoGi / U15 Junioři chlapci / -40 kg
  • Competition age 14
  • Registered age: u16
  • Source category: u16

Classification evidence

Why ≤ 40 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

  • ≤ 40 kg 1 competition event Selected outcome
  • ≤ 45 kg 2 competition events

Registrations and outcomes

CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026
≤ 45 kg · Counts as a competition event
Grappling NoGi / U15 Junioři chlapci / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

4 matches in the rating period

TATAMY 20: PRAGUE - KIDS (round robin)
≤ 45 kg · Counts as a competition event
Kids / No Gi / 13-14 years / Boys / Beginner / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

2 matches in the rating period

CZECH FIGHTING SERIES 12 – Under the Lights 2026
≤ 40 kg · Counts as a competition event
Grappling NoGi / U15 Junioři chlapci / -40 kg
  • Registered weight class: -40 kg
  • Source competition limit: -40 kg

2 matches in the rating period