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CZ

Šimon Janků

Jungle BJJ Prague

W–L
1–9
Won and lost rating-eligible matches in the past 12 months.
Gi
1,146
Rating based on Gi matches in the past 12 months.
No-Gi
1,092
Rating based on No-Gi matches in the past 12 months.
Current form
1–9
Results from the ten most recent rating-eligible matches.
Opponents
7
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

2
Events
Date Event Result Format Division
N-GEN Kids BJJ Tournament #4 CZ · Gi · 12–13 yo · yellow/orange/green · ≤42 kg 1–2 W–L: Win / Loss Gi
  • Boys Gi / Yellow orange green / Junior I (12-13 yrs) / -42 kg (2013,2014)
XIII. GrappleXmas BJJ Cup CZ · Gi · 12–13 yo · white/grey · ≤46 kg ; No-Gi · 12–13 yo · ≤46 kg 1–7 W–L: Win / Loss GiNo-Gi
  • Place #4
  • Place #5

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 1,201

Rating-period composition

Rating matches
10 0
Record
1–9 Previous month 1–9
Opponents
7 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 1,201

Rating-period composition

Rating matches
10 0
Record
1–9 Previous month 1–9
Opponents
7 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 1,201

Rating-period composition

Rating matches
10 0
Record
1–9 Previous month 1–9
Opponents
7 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 1,201

Rating-period composition

Rating matches
10 0
Record
1–9 Previous month 1–9
Opponents
7 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 No new matches Change +2 Rating 1,201

Rating-period composition

Rating matches
10 0
Record
1–9 Previous month 1–9
Opponents
7 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 3 new matches Change +16 Rating 1,199

Rating-period composition

Rating matches
10 +3
Record
1–9 Previous month 0–7
Opponents
7 +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
March 22, 2026 Tomas Svitek
N-GEN Kids BJJ Tournament #4 Boys Gi / Yellow orange green / Junior I (12-13 yrs) / -42 kg (2013,2014)
Method Submission 03:44 4–0
Marginal influence -12
Win
March 22, 2026 Bruno Bo Ulrich
N-GEN Kids BJJ Tournament #4 Boys Gi / Yellow orange green / Junior I (12-13 yrs) / -42 kg (2013,2014)
Method Submission 03:14 11–0
Marginal influence +21
Loss
March 22, 2026 Matúš Škorec
N-GEN Kids BJJ Tournament #4 Boys Gi / Yellow orange green / Junior I (12-13 yrs) / -42 kg (2013,2014)
Method Submission 02:06 0–0
Marginal influence -7
February 2026 No new matches Change -5 Rating 1,183

Rating-period composition

Rating matches
7 0
Record
0–7 Previous month 0–7
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.

January 2026 No new matches Change 0 Rating 1,188

Rating-period composition

Rating matches
7 0
Record
0–7 Previous month 0–7
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.

December 2025 7 new matches Change Starting point Rating 1,188

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 20, 2025 Mathias Mičian
XIII. GrappleXmas BJJ Cup Boys No-Gi / All belt / Junior I (12-13 yrs) / -46 kg (2012,2013)
Method Submission 03:20 0–5
Marginal influence -14
Loss
December 20, 2025 Jan Kubín
XIII. GrappleXmas BJJ Cup Boys No-Gi / All belt / Junior I (12-13 yrs) / -46 kg (2012,2013)
Method Submission 00:57 0–9
Marginal influence -3
Loss
December 20, 2025 Zdeněk Vlček
XIII. GrappleXmas BJJ Cup Boys No-Gi / All belt / Junior I (12-13 yrs) / -46 kg (2012,2013)
Method Submission 00:20 0–0
Marginal influence -6
Loss
December 20, 2025 Václav Bednář
XIII. GrappleXmas BJJ Cup Boys No-Gi / All belt / Junior I (12-13 yrs) / -46 kg (2012,2013)
Method Submission 00:31 2–0
Marginal influence -11
Loss
December 20, 2025 Václav Bednář
XIII. GrappleXmas BJJ Cup Boys Gi / White grey / Junior I (12-13 yrs) / -46 kg (2012,2013)
Method Submission 01:04 2–2
Marginal influence -11
Loss
December 20, 2025 Mathias Mičian
XIII. GrappleXmas BJJ Cup Boys Gi / White grey / Junior I (12-13 yrs) / -46 kg (2012,2013)
Method Points 04:00 2–5
Marginal influence -14
Loss
December 20, 2025 Zdeněk Vlček
XIII. GrappleXmas BJJ Cup Boys Gi / White grey / Junior I (12-13 yrs) / -46 kg (2012,2013)
Method Submission 00:34 0–0
Marginal influence -3
Relevant matches
7.4
Official ranking percentile
Top 87%
Performance
-

7.4 weighted matches against 7 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,414
Repeated-opponent share
30.0%
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

N-GEN Kids BJJ Tournament #4
U16 · Counts
Boys Gi / Yellow orange green / Junior I (12-13 yrs) / -42 kg (2013,2014)
  • Competition age 15
  • Registered age: u14
  • Source category: u14
XIII. GrappleXmas BJJ Cup
Does not count
Boys No-Gi / All belt / Junior I (12-13 yrs) / -46 kg (2012,2013)
  • Competition age 14
  • Registered age: u14
  • Source category: u14
Boys Gi / White grey / Junior I (12-13 yrs) / -46 kg (2012,2013)
  • Competition age 14
  • Registered age: u14
  • Source category: u14
N-GEN Kids BJJ Tournament #3
Does not count
Boys Gi / White grey / Junior I (12-13 yrs) / -54 kg (2012,2013)
  • Competition age 14
  • Registered age: u14
  • Source category: u14

Classification evidence

Why ≤ 42 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

  • ≤ 42 kg 1 competition event Selected outcome
  • ≤ 46 kg 1 competition event

Registrations and outcomes

N-GEN Kids BJJ Tournament #4
≤ 42 kg · Counts as a competition event
Boys Gi / Yellow orange green / Junior I (12-13 yrs) / -42 kg (2013,2014)
  • Registered weight class: -42 kg (2013,2014)
  • Source competition limit: -42 kg (2013,2014)

3 matches in the rating period

XIII. GrappleXmas BJJ Cup
≤ 46 kg · Counts as a competition event
Boys No-Gi / All belt / Junior I (12-13 yrs) / -46 kg (2012,2013)
  • Registered weight class: -46 kg (2012,2013)
  • Source competition limit: -46 kg (2012,2013)

4 matches in the rating period

XIII. GrappleXmas BJJ Cup
≤ 46 kg · Counts as a competition event
Boys Gi / White grey / Junior I (12-13 yrs) / -46 kg (2012,2013)
  • Registered weight class: -46 kg (2012,2013)
  • Source competition limit: -46 kg (2012,2013)

3 matches in the rating period

N-GEN Kids BJJ Tournament #3
Does not count
Boys Gi / White grey / Junior I (12-13 yrs) / -54 kg (2012,2013)
  • Registered weight class: -54 kg (2012,2013)
  • Source competition limit: -54 kg (2012,2013)

No matches in the rating period · no valid weight evidence

Classification evidence

Why Green?

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

  • green 3 matches in the rating period Selected outcome
  • grey 3 matches in the rating period

Registrations and outcomes

N-GEN Kids BJJ Tournament #4
green · Counts as a match
Boys Gi / Yellow orange green / Junior I (12-13 yrs) / -42 kg (2013,2014)
  • Source belt category: green

3 matches in the rating period

XIII. GrappleXmas BJJ Cup
grey · Counts as a match
Boys Gi / White grey / Junior I (12-13 yrs) / -46 kg (2012,2013)
  • Source belt category: grey

3 matches in the rating period