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CZ

Alex Burďuch

Ultimate Gym Brno

W–L
3–6
Won and lost rating-eligible matches in the past 12 months.
Gi
1,246
Rating based on Gi matches in the past 12 months.
No-Gi
1,101
Rating based on No-Gi matches in the past 12 months.
Current form
3–6
Results from the ten most recent rating-eligible matches.
Opponents
8
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

11
Events
Date Event Result Format Division
TATAMY 19: Czech Open Championship (kids) CZ · Gi · 10–12 yo · white/grey · ≤40 kg ; No-Gi · 10–12 yo · ≤40 kg 0–7 W–L: Win / Loss GiNo-Gi
  • Place #4
TATAMY 18 KIDS (No-GI and GI round robin) CZ · Gi · 10–12 yo · white/grey · ≤40 kg 3–1 W–L: Win / Loss Gi
  • Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg
TATAMY 16 KIDS (No-GI and GI round robin) CZ · Gi · 10–12 yo · white/grey · ≤40 kg 0–2 W–L: Win / Loss Gi
  • Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg
Pardubice Grappling Open vol.3 CZ · Gi · 9–10 yo · ≤36 kg ; No-Gi · 9–10 yo · ≤36 kg 2–5 W–L: Win / Loss GiNo-Gi
  • Place #4
  • Boys Junior GI / 9-10 years / -36 kg / Intermediate
TATAMY 12 (No-GI and GI round robin) CZ · Gi · 10–12 yo · white/grey · ≤36 kg 1–3 W–L: Win / Loss Gi
  • Place #11
TATAMY 9 (No-GI and GI round robin) CZ · Gi · 7–9 yo · ≤32 kg 2–2 W–L: Win / Loss Gi
  • Place #7
TATAMY 8 (NO-GI and GI round robin) CZ · Gi · 7–9 yo · ≤32 kg 0–4 W–L: Win / Loss Gi Kids / Gi / 7-9 years / Mix / All levels / -32 kg
TATAMY 7 (NO-GI and GI round robin) CZ · Gi · 7–9 yo · ≤32 kg 2–2 W–L: Win / Loss Gi
  • Place #9
AOM Cup Kids CZ · Gi · 9 yo · grey · ≤27 kg 2–1 W–L: Win / Loss Gi
  • Boys Gi / Grey / Pee Wee III (9yrs) / -27 kg
TATAMY 5 (NO-GI and GI) CZ · Gi · 7–9 yo · ≤28 kg 2–2 W–L: Win / Loss Gi
  • Place #8
AAC Jiu Jitsu Open GI & NOGI 2022 AT · Gi · 7–8 yo · white · ≤28 kg 0–1 W–L: Win / Loss Gi
  • Boys Gi / White / 7-8 years / -28 kg

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 1,267

Rating-period composition

Rating matches
9 0
Record
3–6 Previous month 3–6
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.

July 2026 No new matches Change 0 Rating 1,267

Rating-period composition

Rating matches
9 0
Record
3–6 Previous month 3–6
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.

June 2026 No new matches Change 0 Rating 1,267

Rating-period composition

Rating matches
9 0
Record
3–6 Previous month 3–6
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.

May 2026 No new matches Change -6 Rating 1,267

Rating-period composition

Rating matches
9 0
Record
3–6 Previous month 3–6
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.

April 2026 No new matches Change 0 Rating 1,273

Rating-period composition

Rating matches
9 0
Record
3–6 Previous month 3–6
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.

March 2026 No new matches Change 0 Rating 1,273

Rating-period composition

Rating matches
9 0
Record
3–6 Previous month 3–6
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.

February 2026 3 new matches Change +22 Rating 1,273

Rating-period composition

Rating matches
9 +3
Record
3–6 Previous month 3–3
Opponents
8 +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
February 21, 2026 Leon Fathi Kamari
TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 10-12 years / Boys / Beginner / -40 kg
Method Submission 00:26 1–0
Marginal influence -13
Loss
February 21, 2026 Petr Zajíc
TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 10-12 years / Boys / Beginner / -40 kg
Method Submission 03:42 0–3
Marginal influence -16
Loss
February 21, 2026 Karen Avahimian
TATAMY 19: Czech Open Championship (kids) Kids / No Gi / 10-12 years / Boys / Beginner / -40 kg
Method Submission 01:57 0–0
Marginal influence -17
January 2026 No new matches · 7 left period Change -39 Rating 1,251

Rating-period composition

Rating matches
6 -7
Record
3–3 Previous month 5–8
Opponents
6 -6
Events
2 -1

7 older matches left the 12-month period: 2 won and 5 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

December 2025 4 new matches · 3 left period Change +103 Rating 1,290

Rating-period composition

Rating matches
13 +1
Record
5–8 Previous month 2–10
Opponents
12 +1
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 Karen Avahimian
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg
Method Submission 00:31 0–0
Marginal influence -9
Win
December 6, 2025 Sebastian Ressek
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg
Method Submission 01:46 4–0
Marginal influence +17
Win
December 6, 2025 Tobiáš Prucek
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg
Method Submission 00:58 0–0
Marginal influence +24
Win
December 6, 2025 Gabriel Belcredi
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg
Method Points 04:00 4–0
Marginal influence +20
November 2025 No new matches Change +1 Rating 1,187

Rating-period composition

Rating matches
12 0
Record
2–10 Previous month 2–10
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.

October 2025 No new matches Change -2 Rating 1,186

Rating-period composition

Rating matches
12 0
Record
2–10 Previous month 2–10
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.

September 2025 2 new matches Change -29 Rating 1,188

Rating-period composition

Rating matches
12 +2
Record
2–10 Previous month 2–8
Opponents
11 +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
September 20, 2025 Juraj Salgovic
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg
Method Submission 03:23 0–10
Marginal influence -14
Loss
September 20, 2025 Stanislav Slyvka
TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg
Method Submission 01:12 0–0
Marginal influence -18
Relevant matches
6.8
Official ranking percentile
Top 71%
Performance
14.3 pp below expectation

6.8 weighted matches against 8 different opponents across 3 events

Weighted win rate
31.2%
Expected win rate
45.6%
Average opponent rating
1,301
Repeated-opponent share
11.1%
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 / No Gi / 10-12 years / Boys / Beginner / -40 kg
  • Competition age 12
Kids / Gi / 10-12 years / Boys / White/grey belt / -40 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 / -40 kg
  • Competition age 11
TATAMY 16 KIDS (No-GI and GI round robin)
Does not count
Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg
  • Competition age 11

Classification evidence

Why ≤ 40 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

  • ≤ 40 kg 3 competition events Selected outcome

Registrations and outcomes

TATAMY 19: Czech Open Championship (kids)
≤ 40 kg · Counts as a competition event
Kids / No Gi / 10-12 years / Boys / Beginner / -40 kg
  • Registered weight class: -40 kg
  • Source competition limit: -40 kg

3 matches in the rating period

TATAMY 19: Czech Open Championship (kids)
Does not count
Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg
  • Registered weight class: -40 kg
  • Source competition limit: -40 kg

No matches in the rating period · no valid weight evidence

TATAMY 18 KIDS (No-GI and GI round robin)
≤ 40 kg · Counts as a competition event
Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg
  • Registered weight class: -40 kg
  • Source competition limit: -40 kg

4 matches in the rating period

TATAMY 16 KIDS (No-GI and GI round robin)
≤ 40 kg · Counts as a competition event
Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg
  • Registered weight class: -40 kg
  • Source competition limit: -40 kg

2 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 6 matches in the rating period Selected outcome

Registrations and outcomes

TATAMY 18 KIDS (No-GI and GI round robin)
grey · Counts as a match
Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg
  • Source belt category: grey

4 matches in the rating period

TATAMY 16 KIDS (No-GI and GI round robin)
grey · Counts as a match
Kids / Gi / 10-12 years / Boys / White/grey belt / -40 kg
  • Source belt category: grey

2 matches in the rating period