TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
Language selector
Menu
SK

Jakub Žitný

Jungle BJJ Prague

W–L
5–11
Won and lost rating-eligible matches in the past 12 months.
Gi
1,248
Rating based on Gi matches in the past 12 months.
No-Gi
1,140
Rating based on No-Gi matches in the past 12 months.
Current form
2–8
Results from the ten most recent rating-eligible matches.
Opponents
11
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
0
Silver
2
Bronze
0
Total medals
2
Events with results
5

Full career record

Wins
6
Losses
15
Matches
21
Win rate
28.6%

Ways of winning

Submission
3
Points
3
Decision
0
Disqualification
0

Personal records

Longest winning streak
3
Longest submission streak
1

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
1
Unique opponents
11
Distinct events
3

Ways of winning

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

Gi versus No-Gi

Gi

Rating
1248
Record
4–7
Win rate
36%
Submission share
50%

No-Gi

Rating
1140
Record
1–4
Win rate
20%
Submission share
0%

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
1,277
Change over 90 days
+76
Highest rating in 12 months
1,288
Performance versus expectation
-10.0 pp
Schedule strength
Top 69%
Average opponent rating
1,291
Weighted win rate
36%
Expected win rate
46%
Repeat-opponent share
31%
Effective evidence
10
Confidence
91/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 2–7 2–7 across 9 rematches against 4 repeat opponents.

Rivals

Opponent Head-to-head record Matches
David Zamrykot 0–2 2
Nikolaj Homonaj 0–2 2

Around this athlete

Athlete Rank Rating
Dmytro Folmer #2075 1,277
Jakub Žitný #2076 1,277
Lucie Fraňková #2077 1,277

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 1,277

Rating-period composition

Rating matches
16 0
Record
5–11 Previous month 5–11
Opponents
11 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 1,277

Rating-period composition

Rating matches
16 0
Record
5–11 Previous month 5–11
Opponents
11 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 +1 Rating 1,277

Rating-period composition

Rating matches
16 0
Record
5–11 Previous month 5–11
Opponents
11 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 · 2 left period Change -11 Rating 1,276

Rating-period composition

Rating matches
16 -2
Record
5–11 Previous month 6–12
Opponents
11 -2
Events
3 -1

2 older matches left the 12-month period: 1 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 1,287

Rating-period composition

Rating matches
18 0
Record
6–12 Previous month 6–12
Opponents
13 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.

March 2026 No new matches Change -2 Rating 1,286

Rating-period composition

Rating matches
18 0
Record
6–12 Previous month 6–12
Opponents
13 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.

February 2026 4 new matches Change 0 Rating 1,288

Rating-period composition

Rating matches
18 +4
Record
6–12 Previous month 5–9
Opponents
13 +3
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.
Win
February 21, 2026 Peter Stiasny
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
Method Submission 03:23 6–0
Marginal influence +14
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 00:45 0–6
Marginal influence -5
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 01:14 0–5
Marginal influence -7
Loss
February 21, 2026 David Zamrykot
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
Method Submission 02:12 2–0
Marginal influence -6
January 2026 No new matches Change 0 Rating 1,288

Rating-period composition

Rating matches
14 0
Record
5–9 Previous month 5–9
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.

December 2025 9 new matches · 3 left period Change +76 Rating 1,288

Rating-period composition

Rating matches
14 +6
Record
5–9 Previous month 3–5
Opponents
10 +2
Events
3 0

3 older matches left the 12-month period: 0 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.
Loss
December 6, 2025 Kaisar Tanmagambetov
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 10-12 years / Boys / Beginner / -50 kg
Method Submission 02:24 0–0
Marginal influence -8
Loss
December 6, 2025 Kaisar Tanmagambetov
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 10-12 years / Boys / Beginner / -50 kg
Method Submission 01:50 0–0
Marginal influence -8
Loss
December 6, 2025 Maximus Hora
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 10-12 years / Boys / Beginner / -50 kg
Method Submission 01:10 0–0
Marginal influence -9
Loss
December 6, 2025 Hamza Djamulaev
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 10-12 years / Boys / Beginner / -50 kg
Method Submission 01:12 0–0
Marginal influence -7
Win
December 6, 2025 Unknown opponent
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 10-12 years / Boys / Beginner / -50 kg
Method Points 04:00 3–0
Marginal influence +5
Loss
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 02:07 0–0
Marginal influence -16
Loss
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 Points 04:00 0–5
Marginal influence -8
Loss
December 6, 2025 David Zamrykot
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg
Method Points 04:00 0–5
Marginal influence -6
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 Points 04:00 5–0
Marginal influence +13
November 2025 No new matches Change 0 Rating 1,212

Rating-period composition

Rating matches
8 0
Record
3–5 Previous month 3–5
Opponents
8 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 3 new matches Change +67 Rating 1,212

Rating-period composition

Rating matches
8 +3
Record
3–5 Previous month 1–4
Opponents
8 +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.
Win
October 25, 2025 Filip Šustek
N-GEN Kids BJJ Tournament #3 Boys Gi / White grey / Junior (10-11yrs) / -48 kg (2014,2015)
Method Submission 00:55 6–0
Marginal influence +15
Loss
October 25, 2025 Nikolaj Homonaj
N-GEN Kids BJJ Tournament #3 Boys Gi / White grey / Junior (10-11yrs) / -48 kg (2014,2015)
Method Submission 01:30 0–6
Marginal influence -9
Win
October 25, 2025 Eduard Damek
N-GEN Kids BJJ Tournament #3 Boys Gi / White grey / Junior (10-11yrs) / -48 kg (2014,2015)
Method Points 03:00 2–0
Marginal influence +19
September 2025 No new matches Change +1 Rating 1,145

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
5 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.

Relevant matches
10
Official ranking percentile
Top 68%
Performance
10.0 pp below expectation

10 weighted matches against 11 different opponents across 3 events

Weighted win rate
36.1%
Expected win rate
46.2%
Average opponent rating
1,291
Repeated-opponent share
31.3%
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
Kids / No Gi / 10-12 years / Boys / Beginner / -50 kg
  • Competition age 11
N-GEN Kids BJJ Tournament #3
Does not count
Boys Gi / White grey / Junior (10-11yrs) / -48 kg (2014,2015)
  • Competition age 11
  • Registered age: u12
  • Source category: u12

Classification evidence

Why ≤ 48 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

  • ≤ 48 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 18 KIDS (No-GI and GI round robin)
≤ 50 kg · Counts as a competition event
Kids / No Gi / 10-12 years / Boys / Beginner / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

5 matches in the rating period

N-GEN Kids BJJ Tournament #3
≤ 48 kg · Counts as a competition event
Boys Gi / White grey / Junior (10-11yrs) / -48 kg (2014,2015)
  • Registered weight class: -48 kg (2014,2015)
  • Source competition limit: -48 kg (2014,2015)

3 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 11 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

N-GEN Kids BJJ Tournament #3
grey · Counts as a match
Boys Gi / White grey / Junior (10-11yrs) / -48 kg (2014,2015)
  • Source belt category: grey

3 matches in the rating period