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CZ

Lukas Čupak

Panther BJJ Boskovice

W–L
10–4
Won and lost rating-eligible matches in the past 12 months.
Gi
1,373
Rating based on Gi matches in the past 12 months.
No-Gi
1,254
Rating based on No-Gi matches in the past 12 months.
Current form
9–1
Results from the ten most recent rating-eligible matches.
Opponents
11
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

5
Events
Date Event Result Format Division
TATAMY 20: PRAGUE - KIDS (round robin) CZ · Gi · 13–14 yo · white/grey · ≥65 kg 3–0 W–L: Win / Loss Gi
  • Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
TATAMY 19: Czech Open Championship (kids) CZ · Gi · 13–14 yo · white/grey · ≥65 kg 4–1 W–L: Win / Loss Gi
  • Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
TATAMY 18 KIDS (No-GI and GI round robin) CZ · No-Gi · 13–14 yo · ≥65 kg 2–0 W–L: Win / Loss No-Gi
  • Kids / No Gi / 13-14 years / Boys / Beginner / +65 kg
TATAMY 16 KIDS (No-GI and GI round robin) CZ · Gi · 13–14 yo · white/grey · ≥65 kg ; No-Gi · 13–14 yo · ≥65 kg 1–6 W–L: Win / Loss GiNo-Gi
  • Place #4
  • Place #5
TATAMY 13 KIDS (No-GI and GI round robin) CZ · No-Gi · 13–14 yo · ≥65 kg 0–4 W–L: Win / Loss No-Gi
  • Place #10

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 -3 Rating 1,398

Rating-period composition

Rating matches
14 0
Record
10–4 Previous month 10–4
Opponents
11 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.

July 2026 No new matches Change 0 Rating 1,401

Rating-period composition

Rating matches
14 0
Record
10–4 Previous month 10–4
Opponents
11 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.

June 2026 No new matches Change +2 Rating 1,401

Rating-period composition

Rating matches
14 0
Record
10–4 Previous month 10–4
Opponents
11 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.

May 2026 No new matches Change -1 Rating 1,399

Rating-period composition

Rating matches
14 0
Record
10–4 Previous month 10–4
Opponents
11 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.

April 2026 No new matches Change -2 Rating 1,400

Rating-period composition

Rating matches
14 0
Record
10–4 Previous month 10–4
Opponents
11 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 3 new matches Change +62 Rating 1,402

Rating-period composition

Rating matches
14 +3
Record
10–4 Previous month 7–4
Opponents
11 +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.
Win
March 21, 2026 Damian Trnka
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
Method Submission 00:50 3–0
Marginal influence +8
Win
March 21, 2026 Marcus ŠOUN
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
Method Submission 02:12 12–0
Marginal influence +18
Win
March 21, 2026 David Rosenbaum
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
Method Submission 00:47 6–0
Marginal influence +12
February 2026 5 new matches · 4 left period Change +74 Rating 1,340

Rating-period composition

Rating matches
11 +1
Record
7–4 Previous month 3–7
Opponents
9 0
Events
3 0

4 older matches left the 12-month period: 0 won and 4 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
February 21, 2026 Teodor Stankovic
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
Method Points 04:00 13–4
Marginal influence +8
Win
February 21, 2026 Teodor Stankovic
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
Method Submission 03:35 10–0
Marginal influence +8
Win
February 21, 2026 Lukáš Šabo
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
Method Points 04:00 10–0
Marginal influence +13
Win
February 21, 2026 Konrad Groß
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
Method Points 04:00 7–4
Marginal influence +19
Loss
February 21, 2026 Damian Trnka
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
Method Disqualification 01:15 6–7
Marginal influence -18
January 2026 No new matches Change 0 Rating 1,266

Rating-period composition

Rating matches
10 0
Record
3–7 Previous month 3–7
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.

December 2025 2 new matches Change +39 Rating 1,266

Rating-period composition

Rating matches
10 +2
Record
3–7 Previous month 1–7
Opponents
9 +1
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
December 6, 2025 Ionut Iovănică
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Beginner / +65 kg
Method Points 04:00 6–0
Marginal influence +2
Win
December 6, 2025 Ionut Iovănică
TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Beginner / +65 kg
Method Submission 03:39 0–0
Marginal influence +2
November 2025 No new matches Change +6 Rating 1,227

Rating-period composition

Rating matches
8 0
Record
1–7 Previous month 1–7
Opponents
8 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.

October 2025 No new matches Change -2 Rating 1,221

Rating-period composition

Rating matches
8 0
Record
1–7 Previous month 1–7
Opponents
8 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.

September 2025 4 new matches Change +109 Rating 1,223

Rating-period composition

Rating matches
8 +4
Record
1–7 Previous month 0–4
Opponents
8 +4
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
September 20, 2025 Rudolf Nemcek
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
Method Points 04:00 2–4
Marginal influence -20
Win
September 20, 2025 Karel Kurka
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
Method Decision 04:00 0–0
Marginal influence +17
Loss
September 20, 2025 Oliver Martinec
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
Method Points 04:00 0–3
Marginal influence -22
Loss
September 20, 2025 Unknown opponent
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
Method Submission 03:59 2–4
Marginal influence -16
Relevant matches
8.8
Official ranking percentile
Top 28%
Performance
19.9 pp above expectation

8.8 weighted matches against 11 different opponents across 4 events

Weighted win rate
70.6%
Expected win rate
50.7%
Average opponent rating
1,304
Repeated-opponent share
21.4%
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 2 event votes Selected outcome

Registrations and outcomes

TATAMY 20: PRAGUE - KIDS (round robin)
U16 · Counts
Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
  • Competition age 14
TATAMY 19: Czech Open Championship (kids)
U16 · Counts
Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
  • Competition age 14
TATAMY 18 KIDS (No-GI and GI round robin)
Does not count
Kids / No Gi / 13-14 years / Boys / Beginner / +65 kg
  • Competition age 13
TATAMY 16 KIDS (No-GI and GI round robin)
Does not count
Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
  • Competition age 13
Kids / No Gi / 13-14 years / Boys / Beginner / +65 kg
  • Competition age 13

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 12 matches in the rating period Selected outcome

Registrations and outcomes

TATAMY 20: PRAGUE - KIDS (round robin)
grey · Counts as a match
Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
  • Source belt category: grey

3 matches in the rating period

TATAMY 19: Czech Open Championship (kids)
grey · Counts as a match
Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
  • Source belt category: grey

5 matches in the rating period

TATAMY 16 KIDS (No-GI and GI round robin)
grey · Counts as a match
Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg
  • Source belt category: grey

4 matches in the rating period