TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
Language selector
Menu
CZ

Karel Schämmer

SAMURAI FIGHT CLUB

W–L
6–5
Won and lost rating-eligible matches in the past 12 months.
Gi
1,272
Rating based on Gi matches in the past 12 months.
No-Gi
1,184
Rating based on No-Gi matches in the past 12 months.
Current form
5–5
Results from the ten most recent rating-eligible matches.
Opponents
9
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

2
Events
Date Event Result Format Division
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 CZ · Gi · U12 · ≥50 kg ; Rumble - stužkovaná / NINJAS 9-12 let / 150+ cm 4–2 W–L: Win / Loss Gi
  • Place #5
  • Grappling Gi / U12 Děti chlapci / 50+ kg
CZECH FIGHTING SERIES 12 – Under the Lights 2026 CZ · No-Gi · U12 · ≥50 kg ; Rumble - stužkovaná / NINJAS 9-12 let / 150+ cm 2–3 W–L: Win / Loss GiNo-Gi
  • Grappling NoGi / U12 Děti chlapci / 50+ kg
  • Place #4

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 1,308

Rating-period composition

Rating matches
11 0
Record
6–5 Previous month 6–5
Opponents
9 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.

July 2026 No new matches Change 0 Rating 1,308

Rating-period composition

Rating matches
11 0
Record
6–5 Previous month 6–5
Opponents
9 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.

June 2026 No new matches Change 0 Rating 1,308

Rating-period composition

Rating matches
11 0
Record
6–5 Previous month 6–5
Opponents
9 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.

May 2026 No new matches Change 0 Rating 1,308

Rating-period composition

Rating matches
11 0
Record
6–5 Previous month 6–5
Opponents
9 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.

April 2026 6 new matches Change +48 Rating 1,308

Rating-period composition

Rating matches
11 +6
Record
6–5 Previous month 2–3
Opponents
9 +5
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
April 12, 2026 Marek Šlemer
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Rumble - stužkovaná / NINJAS 9-12 let / 150+ cm
Method Decision 0–1
Marginal influence -17
Win
April 12, 2026 Adam Vondrášek
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Rumble - stužkovaná / NINJAS 9-12 let / 150+ cm
Method Decision 1–0
Marginal influence +12
Win
April 12, 2026 Petr Weinhofer
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Rumble - stužkovaná / NINJAS 9-12 let / 150+ cm
Method Decision 1–0
Marginal influence +16
Loss
April 12, 2026 Maroš Mišák
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Rumble - stužkovaná / NINJAS 9-12 let / 150+ cm
Method Decision 00:59 0–1
Marginal influence -10
Win
April 12, 2026 Mikuláš Brabec
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Grappling Gi / U12 Děti chlapci / 50+ kg
Method Points 02:00 8–0
Marginal influence +17
Win
April 12, 2026 Milan Marek
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Grappling Gi / U12 Děti chlapci / 50+ kg
Method Submission 01:16 4–0
Marginal influence +12
March 2026 No new matches Change -2 Rating 1,260

Rating-period composition

Rating matches
5 0
Record
2–3 Previous month 2–3
Opponents
4 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 5 new matches Change Starting point Rating 1,262

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 28, 2026 Karel Straka
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Rumble - stužkovaná / NINJAS 9-12 let / 150+ cm
Method Decision 01:00 0–0
Marginal influence -24
Win
February 28, 2026 Patrik Stayr
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Rumble - stužkovaná / NINJAS 9-12 let / 150+ cm
Method Points 00:53 0–0
Marginal influence +15
Loss
February 28, 2026 Milan Marek
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Rumble - stužkovaná / NINJAS 9-12 let / 150+ cm
Method Points 01:00 0–0
Marginal influence -17
Loss
February 28, 2026 Michael Nováček
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Grappling NoGi / U12 Děti chlapci / 50+ kg
Method Points 02:00 0–6
Marginal influence -11
Win
February 28, 2026 Milan Marek
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Grappling NoGi / U12 Děti chlapci / 50+ kg
Method Points 02:00 6–0
Marginal influence +4
Relevant matches
7.4
Official ranking percentile
Top 58%
Performance
-

7.4 weighted matches against 9 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,256
Repeated-opponent share
18.2%
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 2 event votes Selected outcome

Registrations and outcomes

CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026
U14 · Counts
Rumble - stužkovaná / NINJAS 9-12 let / 150+ cm
  • Competition age 12
  • Registered age: u14
  • Source category: u14
Grappling Gi / U12 Děti chlapci / 50+ kg
  • Competition age 12
  • Registered age: u12
  • Source category: u12
CZECH FIGHTING SERIES 12 – Under the Lights 2026
U14 · Counts
Rumble - stužkovaná / NINJAS 9-12 let / 150+ cm
  • Competition age 12
  • Registered age: u14
  • Source category: u14
Grappling NoGi / U12 Děti chlapci / 50+ kg
  • Competition age 12
  • Registered age: u12
  • Source category: u12