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CZ

Josef Demčák

SAMURAI FIGHT CLUB

W–L
4–3
Won and lost rating-eligible matches in the past 12 months.
Gi
1,232
Rating based on Gi matches in the past 12 months.
No-Gi
1,221
Rating based on No-Gi matches in the past 12 months.
Current form
4–3
Results from the ten most recent rating-eligible matches.
Opponents
3
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

1
Events
Date Event Result Format Division
CZECH FIGHTING SERIES 11, Samurai Cup 2025 CZ · No-Gi · U12 · ≤20 kg ; Gi · 4–6 yo ; Rumble - stužkovaná / TIGERS 4-6 let / -110 cm 4–3 W–L: Win / Loss GiNo-Gi
  • Grappling NoGi / U12 Děti dívky / -20 kg
  • Kids Run / TIGERS 4-6 let / -110 cm
  • Rumble - stužkovaná / TIGERS 4-6 let / -110 cm

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 1,310

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
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.

July 2026 No new matches Change 0 Rating 1,310

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
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.

June 2026 No new matches Change 0 Rating 1,310

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
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.

May 2026 No new matches Change 0 Rating 1,310

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
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.

April 2026 No new matches Change +16 Rating 1,310

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
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.

March 2026 No new matches Change +4 Rating 1,294

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
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.

February 2026 No new matches Change -6 Rating 1,290

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
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.

January 2026 No new matches Change 0 Rating 1,296

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
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 1,296

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
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 -5 Rating 1,296

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
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 7 new matches Change Starting point Rating 1,301

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 Matěj Skřítek
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Kids Run / TIGERS 4-6 let / -110 cm
Method Points 0–0
Marginal influence -12
Loss
October 18, 2025 Milan Hrudka
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Kids Run / TIGERS 4-6 let / -110 cm
Method Points 0–0
Marginal influence -19
Win
October 18, 2025 Matěj Skřítek
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Rumble - stužkovaná / TIGERS 4-6 let / -110 cm
Method Points 1–0
Marginal influence +22
Win
October 18, 2025 Milan Hrudka
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Rumble - stužkovaná / TIGERS 4-6 let / -110 cm
Method Points 1–0
Marginal influence +15
Win
October 18, 2025 Julie Poustková
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Grappling NoGi / U12 Děti dívky / -20 kg
Method Points 0–0
Marginal influence +9
Loss
October 18, 2025 Julie Poustková
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Grappling NoGi / U12 Děti dívky / -20 kg
Method Points 0–0
Marginal influence -10
Win
October 18, 2025 Julie Poustková
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Grappling NoGi / U12 Děti dívky / -20 kg
Method Points 0–0
Marginal influence +9
Relevant matches
3.3
Official ranking percentile
-
Performance
-

3.3 weighted matches against 3 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,285
Repeated-opponent share
57.1%
Network connectivity
80.9%

Classification evidence

Why U8?

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

  • U8 1 event vote Selected outcome

Registrations and outcomes

CZECH FIGHTING SERIES 11, Samurai Cup 2025
U8 · Counts
Grappling NoGi / U12 Děti dívky / -20 kg
  • Competition age 6
  • Registered age: u12
  • Source category: u12
Kids Run / TIGERS 4-6 let / -110 cm
  • Competition age 6
  • Registered age: u8
  • Source category: u8
Rumble - stužkovaná / TIGERS 4-6 let / -110 cm
  • Competition age 6
  • Registered age: u8
  • Source category: u8

Classification evidence

Why ≤ 20 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

  • ≤ 20 kg 1 competition event Selected outcome

Registrations and outcomes

CZECH FIGHTING SERIES 11, Samurai Cup 2025
≤ 20 kg · Counts as a competition event
Grappling NoGi / U12 Děti dívky / -20 kg
  • Registered weight class: -20 kg
  • Source competition limit: -20 kg

3 matches in the rating period

CZECH FIGHTING SERIES 11, Samurai Cup 2025
Does not count
Kids Run / TIGERS 4-6 let / -110 cm

2 matches in the rating period · weight class could not be normalized reliably

CZECH FIGHTING SERIES 11, Samurai Cup 2025
Does not count
Rumble - stužkovaná / TIGERS 4-6 let / -110 cm

2 matches in the rating period · weight class could not be normalized reliably