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Jiří Bohun

Tiger gym

W–L
4–1
Won and lost rating-eligible matches in the past 12 months.
Gi
1,329
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
4–1
Results from the ten most recent rating-eligible matches.
Opponents
5
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

11
Indexed competition matches
Date Opponent Result Event Division
2025-11-01 Viktor Dengler
Loss
TATAMY 17 KIDS (No-GI and GI round robin) Gi · Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
2025-11-01 Vojtěch Kotula
Win
TATAMY 17 KIDS (No-GI and GI round robin) Gi · Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
2025-11-01 Sebastian Sitsch
Win
TATAMY 17 KIDS (No-GI and GI round robin) Gi · Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
2025-11-01 Mikulas Kocik
Win
TATAMY 17 KIDS (No-GI and GI round robin) Gi · Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
2025-11-01 Jan Kašpárek
Win
TATAMY 17 KIDS (No-GI and GI round robin) Gi · Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
2024-12-07 Lukáš Cimprich
Win
TATAMY 12 (No-GI and GI round robin) Gi · Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
2024-12-07 Oskar Hořava
Loss
TATAMY 12 (No-GI and GI round robin) Gi · Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
2024-12-07 Sayfullah Sharipov
Win
TATAMY 12 (No-GI and GI round robin) Gi · Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
2024-12-07 Damian Saracinov
Loss
TATAMY 12 (No-GI and GI round robin) Gi · Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
2024-11-23 Viktor Dengler
Loss
2024 Prague Open Gi · Gi Kids / Boys / Teen (14 - 15 yrs) / White / Light II (Up to 47.60 kg)
2024-11-23 Matyas Ferkl
Win
2024 Prague Open Gi · Gi Kids / Boys / Teen (14 - 15 yrs) / White / Light II (Up to 47.60 kg)

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 1,329

Rating-period composition

Rating matches
5 0
Record
4–1 Previous month 4–1
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.

July 2026 No new matches Change -2 Rating 1,329

Rating-period composition

Rating matches
5 0
Record
4–1 Previous month 4–1
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.

June 2026 No new matches Change -2 Rating 1,331

Rating-period composition

Rating matches
5 0
Record
4–1 Previous month 4–1
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.

May 2026 No new matches Change +4 Rating 1,333

Rating-period composition

Rating matches
5 0
Record
4–1 Previous month 4–1
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.

April 2026 No new matches Change +10 Rating 1,329

Rating-period composition

Rating matches
5 0
Record
4–1 Previous month 4–1
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.

March 2026 No new matches Change -16 Rating 1,319

Rating-period composition

Rating matches
5 0
Record
4–1 Previous month 4–1
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.

February 2026 No new matches Change +3 Rating 1,335

Rating-period composition

Rating matches
5 0
Record
4–1 Previous month 4–1
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.

January 2026 No new matches Change +2 Rating 1,332

Rating-period composition

Rating matches
5 0
Record
4–1 Previous month 4–1
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.

December 2025 No new matches · 3 left period Change +19 Rating 1,330

Rating-period composition

Rating matches
5 -3
Record
4–1 Previous month 5–3
Opponents
5 -3
Events
1 -1

3 older matches left the 12-month period: 1 won and 2 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

November 2025 5 new matches · 2 left period Change +86 Rating 1,311

Rating-period composition

Rating matches
8 +3
Record
5–3 Previous month 2–3
Opponents
8 +3
Events
2 0

2 older matches left the 12-month period: 1 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

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 Viktor Dengler
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Submission 01:59 -1–0
Marginal influence -30
Win
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 Submission 02:57 0–0
Marginal influence +31
Win
November 1, 2025 Sebastian Sitsch
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Method Submission 00:38 0–0
Marginal influence +12
Win
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 Points 04:00 4–2
Marginal influence +25
Win
November 1, 2025 Jan Kašpárek
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 +23
October 2025 No new matches Change +10 Rating 1,225

Rating-period composition

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

September 2025 No new matches Change -3 Rating 1,215

Rating-period composition

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

Relevant matches
3.3
Official ranking percentile
-
Performance
-

3.3 weighted matches against 5 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,246
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

TATAMY 20: PRAGUE - KIDS (round robin)
Does not count
Kids / Gi / 15-18 years / Boys / White/grey belt / -60 kg
  • Competition age 15
TATAMY 19: Czech Open Championship (kids)
U16 · Counts
Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
  • Competition age 15
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 14

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

Registrations and outcomes

TATAMY 20: PRAGUE - KIDS (round robin)
Does not count
Kids / Gi / 15-18 years / Boys / White/grey belt / -60 kg
  • Registered weight class: -60 kg
  • Source competition limit: -60 kg

No matches in the rating period · no valid weight evidence

TATAMY 19: Czech Open Championship (kids)
Does not count
Kids / Gi / 13-14 years / Boys / White/grey belt / -60 kg
  • Registered weight class: -60 kg
  • Source competition limit: -60 kg

No matches in the rating period · no valid weight evidence

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

5 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 5 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

5 matches in the rating period