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Jakub Jakoubek

COMBAT GYM Chrastava

W–L
4–8
Won and lost rating-eligible matches in the past 12 months.
Gi
1,213
Rating based on Gi matches in the past 12 months.
No-Gi
1,175
Rating based on No-Gi matches in the past 12 months.
Current form
3–7
Results from the ten most recent rating-eligible matches.
Opponents
9
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
1
Silver
2
Bronze
2
Total medals
5
Events with results
6

Full career record

Wins
8
Losses
10
Matches
18
Win rate
44.4%

Ways of winning

Submission
1
Points
5
Decision
0
Disqualification
0
Other recorded result
2

Personal records

Longest winning streak
2
Longest submission streak
1
Longest gold streak
1
Largest recorded points win
2–0

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
9
Distinct events
3

Ways of winning

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

Gi versus No-Gi

Gi

Rating
1213
Record
3–6
Win rate
33%
Submission share
0%

No-Gi

Rating
1175
Record
1–2
Win rate
33%
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
1,263
Change over 90 days
-65
Highest rating in 12 months
1,326
Performance versus expectation
-8.9 pp
Schedule strength
Top 42%
Average opponent rating
1,330
Weighted win rate
36%
Expected win rate
45%
Repeat-opponent share
25%
Effective evidence
8.6
Confidence
88/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 5–4 5–4 across 9 rematches against 2 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #654 Maroš Mišák · CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Pts 2–0
  2. #1996 Daniel Mizer · CZECH FIGHTING SERIES 12 – Under the Lights 2026 Pts 0–0

Full career

  1. #169 Milan Koubek · INTERNATIONAL CZECH CHAMPIONSHIP ČSAKJ 2025 - CFS 10 Pts 1–0 Earlier · Pts 1–0 March 30, 2025 · INTERNATIONAL CZECH CHAMPIONSHIP ČSAKJ 2025 - CFS 10
  2. #654 Maroš Mišák · CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Pts 2–0
  3. #1996 Daniel Mizer · CZECH FIGHTING SERIES 12 – Under the Lights 2026 Pts 0–0 Earlier · Sub 02:17 2–0 January 25, 2025 · Ground Bjj Tour - Praha Chodov - (Ne - Waza)

Rivals

Opponent Head-to-head record Matches
Milan Koubek 2–3 5
Daniel Mizer 3–1 4

Around this athlete

Athlete Rank Rating
Jakub Jakoubek #2188 1,263
Lucia Martínez #2189 1,263

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 1,263

Rating-period composition

Rating matches
12 0
Record
4–8 Previous month 4–8
Opponents
9 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 1,263

Rating-period composition

Rating matches
12 0
Record
4–8 Previous month 4–8
Opponents
9 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 1,263

Rating-period composition

Rating matches
12 0
Record
4–8 Previous month 4–8
Opponents
9 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 +2 Rating 1,263

Rating-period composition

Rating matches
12 0
Record
4–8 Previous month 4–8
Opponents
9 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 5 new matches Change +27 Rating 1,261

Rating-period composition

Rating matches
12 +5
Record
4–8 Previous month 3–4
Opponents
9 +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
April 12, 2026 Milan Koubek
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 MMA Light / U15 Junioři chlapci / -60 kg
Method Points 02:00 0–1
Marginal influence -5
Loss
April 12, 2026 Daniel Mizer
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Grappling NoGi / U15 Junioři chlapci / -60 kg
Method Submission 01:20 0–4
Marginal influence -10
Win
April 12, 2026 Maroš Mišák
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Grappling NoGi / U15 Junioři chlapci / -60 kg
Method Points 02:00 2–0
Marginal influence +10
Loss
April 12, 2026 Dominik Pecho
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 MMA Light / U15 Junioři chlapci / -60 kg
Method Points 02:00 0–1
Marginal influence -16
Loss
April 12, 2026 Milan Koubek
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Grappling NoGi / U15 Junioři chlapci / -60 kg
Method Points 02:00 0–8
Marginal influence -3
March 2026 No new matches · 2 left period Change -59 Rating 1,234

Rating-period composition

Rating matches
7 -2
Record
3–4 Previous month 5–4
Opponents
7 0
Events
2 -1

2 older matches left the 12-month period: 2 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

February 2026 3 new matches Change -8 Rating 1,293

Rating-period composition

Rating matches
9 +3
Record
5–4 Previous month 4–2
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
February 28, 2026 Denis Buranský
CZECH FIGHTING SERIES 12 – Under the Lights 2026 MMA Light / U15 Junioři chlapci / -60 kg
Method Points 02:00 0–0
Marginal influence -16
Win
February 28, 2026 Daniel Mizer
CZECH FIGHTING SERIES 12 – Under the Lights 2026 MMA Light / U15 Junioři chlapci / -60 kg
Method Points 02:00 0–0
Marginal influence +17
Loss
February 28, 2026 Dominik Hrach
CZECH FIGHTING SERIES 12 – Under the Lights 2026 MMA Light / U15 Junioři chlapci / -60 kg
Method Disqualification 00:10 0–0
Marginal influence -17
January 2026 No new matches · 2 left period Change -29 Rating 1,301

Rating-period composition

Rating matches
6 -2
Record
4–2 Previous month 5–3
Opponents
4 -2
Events
2 -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.

December 2025 No new matches Change +1 Rating 1,330

Rating-period composition

Rating matches
8 0
Record
5–3 Previous month 5–3
Opponents
6 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.

November 2025 No new matches Change +3 Rating 1,329

Rating-period composition

Rating matches
8 0
Record
5–3 Previous month 5–3
Opponents
6 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 4 new matches · 2 left period Change +39 Rating 1,326

Rating-period composition

Rating matches
8 +2
Record
5–3 Previous month 4–2
Opponents
6 +2
Events
3 0

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.

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 18, 2025 Antonín Drška
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Kicklight / U15 Junioři chlapci / -55 kg
Method Other recorded result 00:27 2–2
Marginal influence +17
Loss
October 18, 2025 Milan Koubek
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Kicklight / U15 Junioři chlapci / -55 kg
Method Decision 01:30 0–3
Marginal influence -5
Win
October 18, 2025 Dominik Pecho
CZECH FIGHTING SERIES 11, Samurai Cup 2025 MMA Light / U15 Junioři chlapci / -55 kg
Method Other recorded result 0–0
Marginal influence +18
Loss
October 18, 2025 Dominik Holík
CZECH FIGHTING SERIES 11, Samurai Cup 2025 MMA Light / U15 Junioři chlapci / -55 kg
Method Other recorded result 0–0
Marginal influence -17
September 2025 No new matches Change +2 Rating 1,287

Rating-period composition

Rating matches
6 0
Record
4–2 Previous month 4–2
Opponents
4 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.

Relevant matches
8.6
Official ranking percentile
Top 72%
Performance
8.9 pp below expectation

8.6 weighted matches against 9 different opponents across 3 events

Weighted win rate
35.7%
Expected win rate
44.6%
Average opponent rating
1,330
Repeated-opponent share
25.0%
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 / -60 kg
  • Competition age 15
  • Registered age: u16
  • Source category: u16
MMA Light / U15 Junioři chlapci / -60 kg
  • Competition age 15
  • Registered age: u16
  • Source category: u16
TATAMY 20: PRAGUE - KIDS (round robin)
U16 · Counts
Kids / No Gi / 13-14 years / Boys / Intermediate / -60 kg
  • Competition age 15
CZECH FIGHTING SERIES 12 – Under the Lights 2026
U16 · Counts
MMA Light / U15 Junioři chlapci / -60 kg
  • Competition age 15
  • Registered age: u16
  • Source category: u16
CZECH FIGHTING SERIES 11, Samurai Cup 2025
Does not count
Kicklight / U15 Junioři chlapci / -55 kg
  • Competition age 14
  • Registered age: u16
  • Source category: u16
MMA Light / U15 Junioři chlapci / -55 kg
  • Competition age 14
  • Registered age: u16
  • Source category: u16

Classification evidence

Why ≤ 55 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

  • ≤ 55 kg 1 competition event Selected outcome
  • ≤ 60 kg 2 competition events

Registrations and outcomes

CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026
≤ 60 kg · Counts as a competition event
Grappling NoGi / U15 Junioři chlapci / -60 kg
  • Registered weight class: -60 kg
  • Source competition limit: -60 kg

3 matches in the rating period

CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026
≤ 60 kg · Counts as a competition event
MMA Light / U15 Junioři chlapci / -60 kg
  • Registered weight class: -60 kg
  • Source competition limit: -60 kg

2 matches in the rating period

TATAMY 20: PRAGUE - KIDS (round robin)
Does not count
Kids / No Gi / 13-14 years / Boys / Intermediate / -60 kg
  • Registered weight class: -60 kg
  • Source competition limit: -60 kg

No matches in the rating period · no valid weight evidence

CZECH FIGHTING SERIES 12 – Under the Lights 2026
≤ 60 kg · Counts as a competition event
MMA Light / U15 Junioři chlapci / -60 kg
  • Registered weight class: -60 kg
  • Source competition limit: -60 kg

3 matches in the rating period

CZECH FIGHTING SERIES 11, Samurai Cup 2025
≤ 55 kg · Counts as a competition event
Kicklight / U15 Junioři chlapci / -55 kg
  • Registered weight class: -55 kg
  • Source competition limit: -55 kg

2 matches in the rating period

CZECH FIGHTING SERIES 11, Samurai Cup 2025
≤ 55 kg · Counts as a competition event
MMA Light / U15 Junioři chlapci / -55 kg
  • Registered weight class: -55 kg
  • Source competition limit: -55 kg

2 matches in the rating period