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CZ

David Kalous

SAMURAI FIGHT CLUB

W–L
2–2
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
-
Rating based on No-Gi matches in the past 12 months.
Current form
2–2
Results from the ten most recent rating-eligible matches.
Opponents
3
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
2
Silver
0
Bronze
1
Total medals
3
Events with results
2

Full career record

Wins
4
Losses
2
Matches
6
Win rate
66.7%

Ways of winning

Submission
0
Points
2
Decision
0
Disqualification
0
Other recorded result
2

Personal records

Longest winning streak
4
Longest gold streak
1

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
3
Distinct events
1

Ways of winning

  • Submission 0 0%
  • Points 2 100%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1246
Record
2–2
Win rate
50%
Submission share
0%

No-Gi

Rating
-
Record
-
Win rate
-
Submission share
-

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
1,246
Change over 90 days
+28
Highest rating in 12 months
1,307
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,341
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
25%
Effective evidence
2.4
Confidence
42/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 1–1 1–1 across 2 rematches against 1 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #2726 Jaroslav Novotný Jr · CZECH FIGHTING SERIES 11, Samurai Cup 2025 Pts 0–0

Full career

  1. #953 Elin Kofroňová · Ground Bjj Tour 3. - only submission - Kladno — 10–0
  2. #2726 Jaroslav Novotný Jr · CZECH FIGHTING SERIES 11, Samurai Cup 2025 Pts 0–0

Rivals

Opponent Head-to-head record Matches

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 1,246

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
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 1,246

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
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 1,246

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
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 · 2 left period Change -102 Rating 1,246

Rating-period composition

Rating matches
4 -2
Record
2–2 Previous month 4–2
Opponents
3 -2
Events
1 -1

2 older matches left the 12-month period: 2 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

April 2026 No new matches Change +11 Rating 1,348

Rating-period composition

Rating matches
6 0
Record
4–2 Previous month 4–2
Opponents
5 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.

March 2026 No new matches Change +18 Rating 1,337

Rating-period composition

Rating matches
6 0
Record
4–2 Previous month 4–2
Opponents
5 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.

February 2026 No new matches Change +14 Rating 1,319

Rating-period composition

Rating matches
6 0
Record
4–2 Previous month 4–2
Opponents
5 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.

January 2026 No new matches Change -3 Rating 1,305

Rating-period composition

Rating matches
6 0
Record
4–2 Previous month 4–2
Opponents
5 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.

December 2025 No new matches Change 0 Rating 1,308

Rating-period composition

Rating matches
6 0
Record
4–2 Previous month 4–2
Opponents
5 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.

November 2025 No new matches Change +1 Rating 1,308

Rating-period composition

Rating matches
6 0
Record
4–2 Previous month 4–2
Opponents
5 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 4 new matches Change +28 Rating 1,307

Rating-period composition

Rating matches
6 +4
Record
4–2 Previous month 2–0
Opponents
5 +3
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
October 18, 2025 Václav Krištof
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Grappling Gi / U12 Děti chlapci / -25 kg
Method Points 02:00 9–10
Marginal influence -24
Loss
October 18, 2025 Josef Vrága
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Grappling Gi / U12 Děti chlapci / -25 kg
Method Submission 02:00 2–14
Marginal influence -23
Win
October 18, 2025 Václav Krištof
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Kids Run / TIGERS 4-6 let / -130 cm
Method Points 0–0
Marginal influence +37
Win
October 18, 2025 Jaroslav Novotný Jr
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Kids Run / TIGERS 4-6 let / -130 cm
Method Points 0–0
Marginal influence +29
September 2025 No new matches Change 0 Rating 1,279

Rating-period composition

Rating matches
2 0
Record
2–0 Previous month 2–0
Opponents
2 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.

Relevant matches
2.4
Official ranking percentile
-
Performance
-

2.4 weighted matches against 3 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,341
Repeated-opponent share
25.0%
Network connectivity
80.9%

Classification evidence

Why U10?

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

  • U10 1 event vote Selected outcome

Registrations and outcomes

CZECH FIGHTING SERIES 11, Samurai Cup 2025
U10 · Counts
Kids Run / TIGERS 4-6 let / -130 cm
  • Competition age 7
  • Registered age: u8
  • Source category: u8
Grappling Gi / U12 Děti chlapci / -25 kg
  • Competition age 7
  • Registered age: u12
  • Source category: u12

Classification evidence

Why ≤ 25 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

  • ≤ 25 kg 1 competition event Selected outcome

Registrations and outcomes

CZECH FIGHTING SERIES 11, Samurai Cup 2025
Does not count
Kids Run / TIGERS 4-6 let / -130 cm

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

CZECH FIGHTING SERIES 11, Samurai Cup 2025
≤ 25 kg · Counts as a competition event
Grappling Gi / U12 Děti chlapci / -25 kg
  • Registered weight class: -25 kg
  • Source competition limit: -25 kg

2 matches in the rating period