TopBJJ Index Youth
Language selector
Menu
CZ

Leoš Chovanec

COMBAT GYM Chrastava

W–L
6–9
Won and lost rating-eligible matches in the past 12 months.
Gi
1,175
Rating based on Gi matches in the past 12 months.
No-Gi
1,258
Rating based on No-Gi matches in the past 12 months.
Current form
4–6
Results from the ten most recent rating-eligible matches.
Opponents
12
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
1
Silver
1
Bronze
2
Total medals
4
Events with results
5

Full career record

Wins
6
Losses
10
Matches
16
Win rate
37.5%

Ways of winning

Submission
2
Points
4
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
0
Unique opponents
12
Distinct events
5

Ways of winning

  • Submission 2 33%
  • Points 4 67%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1175
Record
2–5
Win rate
29%
Submission share
100%

No-Gi

Rating
1258
Record
4–4
Win rate
50%
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
1,284
Change over 90 days
+115
Highest rating in 12 months
1,284
Performance versus expectation
-9.1 pp
Schedule strength
Top 17%
Average opponent rating
1,371
Weighted win rate
37%
Expected win rate
46%
Repeat-opponent share
20%
Effective evidence
10.9
Confidence
93/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 2–4 2–4 across 6 rematches against 2 repeat opponents.

Top 10 highest-ranked defeated opponents

Rivals

Opponent Head-to-head record Matches
Miroslav Lagron 0–2 2

Around this athlete

Athlete Rank Rating
Caetano Dubois #1981 1,284
Leoš Chovanec #1982 1,284
Pietro Dobos #1983 1,284

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 1,284

Rating-period composition

Rating matches
15 0
Record
6–9 Previous month 6–9
Opponents
12 0
Events
5 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 1,284

Rating-period composition

Rating matches
15 0
Record
6–9 Previous month 6–9
Opponents
12 0
Events
5 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 1,285

Rating-period composition

Rating matches
15 0
Record
6–9 Previous month 6–9
Opponents
12 0
Events
5 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 +3 Rating 1,284

Rating-period composition

Rating matches
15 0
Record
6–9 Previous month 6–9
Opponents
12 0
Events
5 0

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

April 2026 2 new matches Change +1 Rating 1,281

Rating-period composition

Rating matches
15 +2
Record
6–9 Previous month 5–8
Opponents
12 +2
Events
5 +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 Miroslav Lagron
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Grappling Gi / U12 Děti chlapci / -35 kg
Method Submission 00:59 2–0
Marginal influence -12
Win
April 12, 2026 Alex Vondrášek
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Grappling Gi / U12 Děti chlapci / -35 kg
Method Submission 00:11 0–0
Marginal influence +9
March 2026 3 new matches Change -4 Rating 1,280

Rating-period composition

Rating matches
13 +3
Record
5–8 Previous month 4–6
Opponents
10 +2
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.
Loss
March 21, 2026 Markó Rebeka
TATAMY 20: PRAGUE - KIDS (round robin) Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg
Method Points 04:00 0–3
Marginal influence -14
Loss
March 21, 2026 Mykhailo Shpynta
TATAMY 20: PRAGUE - KIDS (round robin) Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg
Method Submission 00:46 0–0
Marginal influence -6
Win
March 21, 2026 Ondřej Jirásek
TATAMY 20: PRAGUE - KIDS (round robin) Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg
Method Points 04:00 9–4
Marginal influence +10
February 2026 7 new matches Change +108 Rating 1,284

Rating-period composition

Rating matches
10 +7
Record
4–6 Previous month 1–2
Opponents
8 +5
Events
3 +2

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 Ondřej Jirásek
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Grappling NoGi / U12 Děti chlapci / -35 kg
Method Points 02:00 2–0
Marginal influence +12
Win
February 28, 2026 Milan Kolomazník
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Grappling NoGi / U12 Děti chlapci / -35 kg
Method Points 02:00 2–0
Marginal influence +20
Loss
February 28, 2026 Ondřej Jirásek
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Grappling Gi / U12 Děti chlapci / -35 kg
Method Points 02:00 5–6
Marginal influence -18
Loss
February 28, 2026 Kiril Delos Santos
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Grappling Gi / U12 Děti chlapci / -35 kg
Method Points 02:00 4–8
Marginal influence -7
Loss
February 7, 2026 Luka Long
Pardubice Grappling Open vol.5 Boys Junior No-GI / 9-10 years / -36 kg / Intermediate
Method Submission 01:48 0–0
Marginal influence -7
Loss
February 7, 2026 Ondřej Jirásek
Pardubice Grappling Open vol.5 Boys Junior No-GI / 9-10 years / -36 kg / Intermediate
Method Submission 03:54 4–4
Marginal influence -6
Win
February 7, 2026 Roman Hauf-Soldát
Pardubice Grappling Open vol.5 Boys Junior No-GI / 9-10 years / -36 kg / Intermediate
Method Points 05:00 4–0
Marginal influence +11
January 2026 No new matches Change 0 Rating 1,176

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
Opponents
3 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.

December 2025 No new matches Change 0 Rating 1,176

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
Opponents
3 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.

November 2025 No new matches Change +10 Rating 1,176

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
Opponents
3 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.

October 2025 3 new matches Change Starting point Rating 1,166

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
October 18, 2025 Roman Marčenko
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Grappling Gi / U12 Děti chlapci / -35 kg
Method Submission 01:35 6–4
Marginal influence -15
Win
October 18, 2025 Richard Beneš
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Grappling Gi / U12 Děti chlapci / -35 kg
Method Submission 00:42 8–0
Marginal influence +14
Loss
October 18, 2025 Eliáš Foukal
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Grappling Gi / U12 Děti chlapci / -35 kg
Method Points 02:00 0–9
Marginal influence -13
Relevant matches
10.9
Official ranking percentile
Top 65%
Performance
9.1 pp below expectation

10.9 weighted matches against 12 different opponents across 5 events

Weighted win rate
36.9%
Expected win rate
46.1%
Average opponent rating
1,371
Repeated-opponent share
20.0%
Network connectivity
80.9%

Classification evidence

Why U12?

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

  • U12 4 event votes Selected outcome

Registrations and outcomes

CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026
U12 · Counts
Grappling Gi / U12 Děti chlapci / -35 kg
  • Competition age 11
  • Registered age: u12
  • Source category: u12
TATAMY 20: PRAGUE - KIDS (round robin)
U12 · Counts
Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg
  • Competition age 11
CZECH FIGHTING SERIES 12 – Under the Lights 2026
U12 · Counts
Grappling NoGi / U12 Děti chlapci / -35 kg
  • Competition age 11
  • Registered age: u12
  • Source category: u12
Grappling Gi / U12 Děti chlapci / -35 kg
  • Competition age 11
  • Registered age: u12
  • Source category: u12
Pardubice Grappling Open vol.5
U12 · Counts
Boys Junior No-GI / 9-10 years / -36 kg / Intermediate
  • Competition age 11
CZECH FIGHTING SERIES 11, Samurai Cup 2025
Does not count
Grappling Gi / U12 Děti chlapci / -35 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12

Classification evidence

Why ≤ 35 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

  • ≤ 35 kg 2 competition events Selected outcome
  • ≤ 36 kg 1 competition event

Registrations and outcomes

CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026
≤ 35 kg · Counts as a competition event
Grappling Gi / U12 Děti chlapci / -35 kg
  • Registered weight class: -35 kg
  • Source competition limit: -35 kg

2 matches in the rating period

TATAMY 20: PRAGUE - KIDS (round robin)
≤ 36 kg · Counts as a competition event
Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg
  • Registered weight class: -36 kg
  • Source competition limit: -36 kg

3 matches in the rating period

CZECH FIGHTING SERIES 12 – Under the Lights 2026
≤ 35 kg · Counts as a competition event
Grappling NoGi / U12 Děti chlapci / -35 kg
  • Registered weight class: -35 kg
  • Source competition limit: -35 kg

2 matches in the rating period

CZECH FIGHTING SERIES 12 – Under the Lights 2026
≤ 35 kg · Counts as a competition event
Grappling Gi / U12 Děti chlapci / -35 kg
  • Registered weight class: -35 kg
  • Source competition limit: -35 kg

2 matches in the rating period

Pardubice Grappling Open vol.5
≤ 36 kg · Does not count
Boys Junior No-GI / 9-10 years / -36 kg / Intermediate
  • Registered weight class: -36 kg
  • Source competition limit: -36 kg

3 matches in the rating period · outside the three most recent unambiguous events

CZECH FIGHTING SERIES 11, Samurai Cup 2025
≤ 35 kg · Does not count
Grappling Gi / U12 Děti chlapci / -35 kg
  • Registered weight class: -35 kg
  • Source competition limit: -35 kg

3 matches in the rating period · outside the three most recent unambiguous events