TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
Language selector
Menu
SK

Lukas Kostur

Jiu-Jitsu Academy Bratislava

W–L
3–2
Won and lost rating-eligible matches in the past 12 months.
Gi
-
Rating based on Gi matches in the past 12 months.
No-Gi
1,290
Rating based on No-Gi matches in the past 12 months.
Current form
3–2
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
4
Silver
3
Bronze
2
Total medals
9
Events with results
8

Full career record

Wins
21
Losses
16
Matches
37
Win rate
56.8%

Ways of winning

Submission
10
Points
10
Decision
1
Disqualification
0

Personal records

Longest winning streak
7
Longest submission streak
2
Longest gold streak
2
Largest recorded points win
18–0

Recent recorded placements

  5. TATAMY 5 (NO-GI and GI)

    CZ Event record 3–4

    • Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -40 kg
    • Place 5

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
5
Distinct events
1

Ways of winning

  • Submission 1 33%
  • Points 2 67%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
-
Record
-
Win rate
-
Submission share
-

No-Gi

Rating
1290
Record
3–2
Win rate
60%
Submission share
33%

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
1,290
Change over 90 days
-
Highest rating in 12 months
1,291
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,404
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
0%
Effective evidence
3.3
Confidence
57/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 11–10 11–10 across 21 rematches against 8 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #136 Zaur Fotiadi · TATAMY 18 KIDS (No-GI and GI round robin) Pts 6–0
  2. #1400 Šimon Dyntar · TATAMY 18 KIDS (No-GI and GI round robin) Sub 03:43 0–0
  3. #2008 Michal Klimánek · TATAMY 18 KIDS (No-GI and GI round robin) Pts 5–0

Full career

  1. #136 Zaur Fotiadi · TATAMY 18 KIDS (No-GI and GI round robin) Pts 6–0
  2. #192 Matúš Škorec · TATAMY 9 (No-GI and GI round robin) Sub 01:33 0–0
  3. #1156 Patrik Trávníček · TATAMY 8 (NO-GI and GI round robin) Dec 0–0
  4. #1400 Šimon Dyntar · TATAMY 18 KIDS (No-GI and GI round robin) Sub 03:43 0–0
  5. #2008 Michal Klimánek · TATAMY 18 KIDS (No-GI and GI round robin) Pts 5–0 Earlier · Sub 03:24 5–0 March 9, 2024 · TATAMY 8 (NO-GI and GI round robin)

Rivals

Opponent Head-to-head record Matches
Ondřej Vrána 1–3 4
Samuel Glogar 4–0 4

Scheduled

  1. TATAMY 22: BRNO - KIDS (round robin)

    CZ

    Kids / Gi / 13-14 years / Boys / Yellow/orange/green belt / -55 kg Kids / No Gi / 13-14 years / Boys / Intermediate / -55 kg
    Confirmed

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 1,290

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
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 +1 Rating 1,290

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
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 -6 Rating 1,289

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
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 +9 Rating 1,295

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
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 No new matches Change +2 Rating 1,286

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
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.

March 2026 No new matches Change -1 Rating 1,284

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
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.

February 2026 No new matches Change -6 Rating 1,285

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
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.

January 2026 No new matches Change 0 Rating 1,291

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
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.

December 2025 5 new matches Change Starting point Rating 1,291

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 Semen Babailov
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Intermediate / -50 kg
Method Submission 03:18 0–1
Marginal influence -24
Win
December 6, 2025 Michal Klimánek
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Intermediate / -50 kg
Method Points 04:00 5–0
Marginal influence +21
Win
December 6, 2025 Šimon Dyntar
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Intermediate / -50 kg
Method Submission 03:43 0–0
Marginal influence +32
Win
December 6, 2025 Zaur Fotiadi
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Intermediate / -50 kg
Method Points 04:00 6–0
Marginal influence +40
Loss
December 6, 2025 Patrik Trávníček
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Intermediate / -50 kg
Method Submission 01:52 0–0
Marginal influence -39
Relevant matches
3.3
Official ranking percentile
-
Performance
-

3.3 weighted matches against 5 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,404
Repeated-opponent share
0.0%
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 1 event vote Selected outcome

Registrations and outcomes

TATAMY 18 KIDS (No-GI and GI round robin)
U16 · Counts
Kids / No Gi / 13-14 years / Boys / Intermediate / -50 kg
  • Competition age 13
Kids / Gi / 13-14 years / Boys / Yellow/orange/green belt / -50 kg
  • Competition age 13

Classification evidence

Why ≤ 50 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

  • ≤ 50 kg 1 competition event Selected outcome

Registrations and outcomes

TATAMY 18 KIDS (No-GI and GI round robin)
≤ 50 kg · Counts as a competition event
Kids / No Gi / 13-14 years / Boys / Intermediate / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

5 matches in the rating period

TATAMY 18 KIDS (No-GI and GI round robin)
Does not count
Kids / Gi / 13-14 years / Boys / Yellow/orange/green belt / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

No matches in the rating period · no valid weight evidence