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Jan Kašpárek

Octopus Liberec

W–L
1–3
Won and lost rating-eligible matches in the past 12 months.
Gi
1,187
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
1–3
Results from the ten most recent rating-eligible matches.
Opponents
4
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

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

Full career record

Wins
6
Losses
5
Matches
11
Win rate
54.5%

Ways of winning

Submission
1
Points
3
Decision
0
Disqualification
0

Personal records

Longest winning streak
3
Longest submission streak
1

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
2
Unique opponents
4
Distinct events
2

Ways of winning

  • Submission 0 0%
  • Points 1 100%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1187
Record
1–3
Win rate
25%
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
1,187
Change over 90 days
-15
Highest rating in 12 months
1,236
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,340
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
0%
Effective evidence
3.3
Confidence
55/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #633 Denis Krejčík · GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Pts 8–0

Full career

  1. #633 Denis Krejčík · GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Pts 8–0
  2. #2895 Luis Baláž · GRIND 9 NO-GI & GI ROUND ROBIN with kids Sub 01:21 11–0

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 1,187

Rating-period composition

Rating matches
4 0
Record
1–3 Previous month 1–3
Opponents
4 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 -3 Rating 1,187

Rating-period composition

Rating matches
4 0
Record
1–3 Previous month 1–3
Opponents
4 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 1,190

Rating-period composition

Rating matches
4 0
Record
1–3 Previous month 1–3
Opponents
4 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 +5 Rating 1,190

Rating-period composition

Rating matches
4 0
Record
1–3 Previous month 1–3
Opponents
4 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 1 new match Change +89 Rating 1,185

Rating-period composition

Rating matches
4 +1
Record
1–3 Previous month 0–3
Opponents
4 +1
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.
Win
April 25, 2026 Denis Krejčík
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 13-14 years / Boy / -60 kg / Beginner
Method Points 04:00 8–0
Marginal influence +64
March 2026 No new matches · 5 left period Change -119 Rating 1,096

Rating-period composition

Rating matches
3 -5
Record
0–3 Previous month 3–5
Opponents
3 -5
Events
1 -1

5 older matches left the 12-month period: 3 won and 2 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

February 2026 No new matches Change +2 Rating 1,215

Rating-period composition

Rating matches
8 0
Record
3–5 Previous month 3–5
Opponents
8 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 +6 Rating 1,213

Rating-period composition

Rating matches
8 0
Record
3–5 Previous month 3–5
Opponents
8 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 +7 Rating 1,207

Rating-period composition

Rating matches
8 0
Record
3–5 Previous month 3–5
Opponents
8 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 3 new matches Change -47 Rating 1,200

Rating-period composition

Rating matches
8 +3
Record
3–5 Previous month 3–2
Opponents
8 +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
November 1, 2025 Mikulas Kocik
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Submission 00:46 0–0
Marginal influence -37
Loss
November 1, 2025 Vojtěch Kotula
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Points 04:00 0–2
Marginal influence -32
Loss
November 1, 2025 Jiří Bohun
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Submission 00:32 0–0
Marginal influence -24
October 2025 No new matches Change +9 Rating 1,247

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
5 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.

September 2025 No new matches Change +2 Rating 1,238

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
5 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
3.3
Official ranking percentile
-
Performance
-

3.3 weighted matches against 4 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,340
Repeated-opponent share
0.0%
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 1 event vote Selected outcome

Registrations and outcomes

GRIND 13 Kids (NO-GI & GI ROUND ROBIN)
U16 · Counts
Gi / 13-14 years / Boy / -60 kg / Beginner
  • Competition age 14
TATAMY 17 KIDS (No-GI and GI round robin)
Does not count
Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
  • Competition age 13

Classification evidence

Why ≤ 55 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

  • ≤ 55 kg 1 competition event Selected outcome
  • ≤ 60 kg 1 competition event

Registrations and outcomes

GRIND 13 Kids (NO-GI & GI ROUND ROBIN)
≤ 60 kg · Counts as a competition event
Gi / 13-14 years / Boy / -60 kg / Beginner
  • Registered weight class: -60 kg
  • Source competition limit: -60 kg

1 match in the rating period

TATAMY 17 KIDS (No-GI and GI 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

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 3 matches in the rating period Selected outcome

Registrations and outcomes

TATAMY 17 KIDS (No-GI and GI round robin)
grey · Counts as a match
Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
  • Source belt category: grey

3 matches in the rating period