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Samuel Nikolas Stejskal

Draculino Karviná

W–L
2–7
Won and lost rating-eligible matches in the past 12 months.
Gi
1,191
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
2–7
Results from the ten most recent rating-eligible matches.
Opponents
8
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

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

Full career record

Wins
3
Losses
7
Matches
10
Win rate
30.0%

Ways of winning

Submission
1
Points
1
Decision
0
Disqualification
0

Personal records

Longest winning streak
2
Longest submission streak
1

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
8
Distinct events
3

Ways of winning

  • Submission 1 50%
  • Points 1 50%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1191
Record
2–7
Win rate
22%
Submission share
50%

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
1,191
Change over 90 days
+105
Highest rating in 12 months
1,193
Performance versus expectation
-9.3 pp
Schedule strength
Top 25%
Average opponent rating
1,356
Weighted win rate
25%
Expected win rate
35%
Repeat-opponent share
11%
Effective evidence
6.4
Confidence
76/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 1–3 1–3 across 4 rematches against 2 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #2491 Filip Krupka · TATAMY 19: Czech Open Championship (kids) Pts 9–0

Full career

  1. #2491 Filip Krupka · TATAMY 19: Czech Open Championship (kids) Pts 9–0

Rivals

Opponent Head-to-head record Matches
Libor Dobeš 1–1 2

Around this athlete

Athlete Rank Rating
Émile Nouveau #2695 1,191
Samuel Nikolas Stejskal #2696 1,191
Lazar Nedić #2697 1,191

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 1,191

Rating-period composition

Rating matches
9 0
Record
2–7 Previous month 2–7
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 -1 Rating 1,191

Rating-period composition

Rating matches
9 0
Record
2–7 Previous month 2–7
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 -1 Rating 1,192

Rating-period composition

Rating matches
9 0
Record
2–7 Previous month 2–7
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 1,193

Rating-period composition

Rating matches
9 0
Record
2–7 Previous month 2–7
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 +6 Rating 1,199

Rating-period composition

Rating matches
9 0
Record
2–7 Previous month 2–7
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 2 new matches Change +54 Rating 1,193

Rating-period composition

Rating matches
9 +2
Record
2–7 Previous month 1–6
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
March 21, 2026 Jindřich Konečný
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Points 04:00 4–18
Marginal influence -14
Win
March 21, 2026 Alessandro Vaňátko
TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Submission 02:39 2–0
Marginal influence +34
February 2026 4 new matches Change +51 Rating 1,139

Rating-period composition

Rating matches
7 +4
Record
1–6 Previous month 0–3
Opponents
6 +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
February 21, 2026 Abubakar Salgereev
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
Method Submission 00:35 0–0
Marginal influence -9
Win
February 21, 2026 Filip Krupka
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
Method Points 04:00 9–0
Marginal influence +34
Loss
February 21, 2026 Zdeněk Vlček
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
Method Submission 02:52 4–3
Marginal influence -7
Loss
February 21, 2026 Abubakar Salgereev
TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
Method Submission 02:02 0–6
Marginal influence -9
January 2026 No new matches Change 0 Rating 1,088

Rating-period composition

Rating matches
3 0
Record
0–3 Previous month 0–3
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 3 new matches Change Starting point Rating 1,088

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 Tobiáš Podroužek
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
Method Points 04:00 0–4
Marginal influence -22
Loss
December 6, 2025 Libor Dobeš
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
Method Decision 04:00 0–0
Marginal influence -28
Loss
December 6, 2025 Adam Lichý
TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
Method Points 04:00 3–4
Marginal influence -14
Relevant matches
6.4
Official ranking percentile
Top 89%
Performance
9.3 pp below expectation

6.4 weighted matches against 8 different opponents across 3 events

Weighted win rate
25.3%
Expected win rate
34.7%
Average opponent rating
1,356
Repeated-opponent share
11.1%
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 / -55 kg
  • Competition age 14
TATAMY 19: Czech Open Championship (kids)
U16 · Counts
Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
  • Competition age 14
TATAMY 18 KIDS (No-GI and GI round robin)
Does not count
Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
  • Competition age 13

Classification evidence

Why ≤ 50 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

  • ≤ 50 kg 2 competition events Selected outcome
  • ≤ 55 kg 1 competition event

Registrations and outcomes

TATAMY 20: PRAGUE - KIDS (round robin)
≤ 55 kg · Counts as a competition event
Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
  • Registered weight class: -55 kg
  • Source competition limit: -55 kg

2 matches in the rating period

TATAMY 19: Czech Open Championship (kids)
≤ 50 kg · Counts as a competition event
Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

4 matches in the rating period

TATAMY 18 KIDS (No-GI and GI round robin)
≤ 50 kg · Counts as a competition event
Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

3 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 9 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 / -55 kg
  • Source belt category: grey

2 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 / -50 kg
  • Source belt category: grey

4 matches in the rating period

TATAMY 18 KIDS (No-GI and GI round robin)
grey · Counts as a match
Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
  • Source belt category: grey

3 matches in the rating period