TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
Language selector
Menu
CZ

Tom Benjamin Vondráček

Jungle BJJ Frenštát

W–L
3–5
Won and lost rating-eligible matches in the past 12 months.
Gi
1,234
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
3–5
Results from the ten most recent rating-eligible matches.
Opponents
6
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
2
Silver
3
Bronze
3
Total medals
8
Events with results
9

Full career record

Wins
15
Losses
12
Matches
27
Win rate
55.6%

Ways of winning

Submission
3
Points
11
Decision
1
Disqualification
0

Personal records

Longest winning streak
6
Longest submission streak
1
Longest gold streak
1
Largest recorded points win
21–2

Recent recorded placements

  1. XV. REBEL BJJ CUP

    CZ Event record 2–1

    • Boys Gi / White grey / Pee Wee (7-9 yrs) / -35 kg (2017,2018,2019)

  5. XIV. REBEL BJJ CUP

    CZ Event record 0–2

    • Boys Gi / White grey / Pee Wee (7-9 yrs) / -29 kg (2016,2017,2018)

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
1
Unique opponents
6
Distinct events
3

Ways of winning

  • Submission 1 33%
  • Points 2 67%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1234
Record
3–5
Win rate
38%
Submission share
33%

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
1,234
Change over 90 days
+141
Highest rating in 12 months
1,372
Performance versus expectation
-1.3 pp
Schedule strength
Top 79%
Average opponent rating
1,276
Weighted win rate
45%
Expected win rate
46%
Repeat-opponent share
25%
Effective evidence
5.2
Confidence
72/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 4–6 4–6 across 10 rematches against 4 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #2829 Stela Byrtusová · XV. REBEL BJJ CUP Pts 0–0
  2. #2911 Jan Lazárek · N-GEN Kids BJJ Tournament #4 Sub 01:15 7–0

Full career

  1. #40 Maxim Krmela · XIII. REBEL BJJ CUP KIDS Pts 10–0
  2. #724 Tobiáš Jendrisek · N-GEN Kids BJJ Tournament #2 Pts 21–2
  3. #1003 Tomáš Frydrych · XII. GrappleXmas BJJ Cup Pts 2–0 Earlier · Sub 00:46 4–2 November 2, 2024 · N-GEN Kids BJJ Tournament #1
  4. #1938 Dominik Schwarc · N-GEN Kids BJJ Tournament #1 Pts 6–0
  5. #2287 Tadeáš Bábíček · XII. GrappleXmas BJJ Cup Pts 2–0
  6. #2501 Marek Kostka · XII. GrappleXmas BJJ Cup Sub 00:54 9–0
  7. #2829 Stela Byrtusová · XV. REBEL BJJ CUP Pts 0–0
  8. #2911 Jan Lazárek · N-GEN Kids BJJ Tournament #4 Sub 01:15 7–0
  9. #3055 Jakub Zima · XIII. REBEL BJJ CUP KIDS Pts 9–0 Earlier · Pts 5–0 December 10, 2023 · XI. GrappleXmas BJJ Cup KIDS

Rivals

Opponent Head-to-head record Matches
Michal Hrnčár 0–3 3
Jakub Zima 2–0 2

Around this athlete

Athlete Rank Rating
Gabriel Ouadah #2437 1,234
Tom Benjamin Vondráček #2438 1,234
Samuel Roorda Loaiza #2439 1,234

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 1,234

Rating-period composition

Rating matches
8 0
Record
3–5 Previous month 3–5
Opponents
6 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 0 Rating 1,234

Rating-period composition

Rating matches
8 0
Record
3–5 Previous month 3–5
Opponents
6 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 +2 Rating 1,234

Rating-period composition

Rating matches
8 0
Record
3–5 Previous month 3–5
Opponents
6 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 · 3 left period Change -35 Rating 1,232

Rating-period composition

Rating matches
8 -3
Record
3–5 Previous month 4–7
Opponents
6 -3
Events
3 -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.

April 2026 3 new matches Change +76 Rating 1,267

Rating-period composition

Rating matches
11 +3
Record
4–7 Previous month 2–6
Opponents
9 +2
Events
4 +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 18, 2026 Jakub Simicek
XV. REBEL BJJ CUP Boys Gi / White grey / Pee Wee (7-9 yrs) / -35 kg (2017,2018,2019)
Method Points 03:00 10–2
Marginal influence +30
Loss
April 18, 2026 Daniil Prokopenko
XV. REBEL BJJ CUP Boys Gi / White grey / Pee Wee (7-9 yrs) / -35 kg (2017,2018,2019)
Method Submission 01:04 0–6
Marginal influence -15
Win
April 18, 2026 Stela Byrtusová
XV. REBEL BJJ CUP Boys Gi / White grey / Pee Wee (7-9 yrs) / -35 kg (2017,2018,2019)
Method Points 03:00 0–0
Marginal influence +26
March 2026 2 new matches · 2 left period Change +62 Rating 1,191

Rating-period composition

Rating matches
8 0
Record
2–6 Previous month 1–7
Opponents
7 0
Events
3 0

2 older matches left the 12-month period: 0 won and 2 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.
Win
March 22, 2026 Jan Lazárek
N-GEN Kids BJJ Tournament #4 Boys Gi / White grey / Pee Wee (7-9 yrs) / -35 kg (2017,2018,2019)
Method Submission 01:15 7–0
Marginal influence +25
Loss
March 22, 2026 Daniil Prokopenko
N-GEN Kids BJJ Tournament #4 Boys Gi / White grey / Pee Wee (7-9 yrs) / -35 kg (2017,2018,2019)
Method Points 03:00 0–18
Marginal influence -16
February 2026 No new matches Change +3 Rating 1,129

Rating-period composition

Rating matches
8 0
Record
1–7 Previous month 1–7
Opponents
7 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.

January 2026 No new matches Change 0 Rating 1,126

Rating-period composition

Rating matches
8 0
Record
1–7 Previous month 1–7
Opponents
7 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.

December 2025 3 new matches · 4 left period Change -215 Rating 1,126

Rating-period composition

Rating matches
8 -1
Record
1–7 Previous month 5–4
Opponents
7 -1
Events
3 0

4 older matches left the 12-month period: 4 won and 0 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
December 20, 2025 Matěj Korbáš
XIII. GrappleXmas BJJ Cup Boys Gi / White grey / Pee Wee (7-9 yrs) / -29 kg (2016,2017,2018)
Method Submission 01:27 2–2
Marginal influence -32
Loss
December 20, 2025 Jakub Onger
XIII. GrappleXmas BJJ Cup Boys Gi / White grey / Pee Wee (7-9 yrs) / -29 kg (2016,2017,2018)
Method Points 03:00 2–2
Marginal influence -18
Loss
December 20, 2025 Daniil Prokopenko
XIII. GrappleXmas BJJ Cup Boys Gi / White grey / Pee Wee (7-9 yrs) / -29 kg (2016,2017,2018)
Method Points 03:00 2–6
Marginal influence -15
November 2025 No new matches · 4 left period Change -41 Rating 1,341

Rating-period composition

Rating matches
9 -4
Record
5–4 Previous month 8–5
Opponents
8 -2
Events
3 -1

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

October 2025 No new matches Change +15 Rating 1,382

Rating-period composition

Rating matches
13 0
Record
8–5 Previous month 8–5
Opponents
10 0
Events
4 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 -5 Rating 1,367

Rating-period composition

Rating matches
13 0
Record
8–5 Previous month 8–5
Opponents
10 0
Events
4 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

Relevant matches
5.2
Official ranking percentile
Top 80%
Performance
1.3 pp below expectation

5.2 weighted matches against 6 different opponents across 3 events

Weighted win rate
45.0%
Expected win rate
46.4%
Average opponent rating
1,276
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 2 event votes Selected outcome

Registrations and outcomes

XV. REBEL BJJ CUP
U10 · Counts
Boys Gi / White grey / Pee Wee (7-9 yrs) / -35 kg (2017,2018,2019)
  • Competition age 8
N-GEN Kids BJJ Tournament #4
U10 · Counts
Boys Gi / White grey / Pee Wee (7-9 yrs) / -35 kg (2017,2018,2019)
  • Competition age 8
XIII. GrappleXmas BJJ Cup
Does not count
Boys Gi / White grey / Pee Wee (7-9 yrs) / -29 kg (2016,2017,2018)
  • Competition age 7

Classification evidence

Why ≤ 29 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

  • ≤ 29 kg 1 competition event Selected outcome
  • ≤ 35 kg 2 competition events

Registrations and outcomes

XV. REBEL BJJ CUP
≤ 35 kg · Counts as a competition event
Boys Gi / White grey / Pee Wee (7-9 yrs) / -35 kg (2017,2018,2019)
  • Registered weight class: -35 kg (2017,2018,2019)
  • Source competition limit: -35 kg (2017,2018,2019)

3 matches in the rating period

N-GEN Kids BJJ Tournament #4
≤ 35 kg · Counts as a competition event
Boys Gi / White grey / Pee Wee (7-9 yrs) / -35 kg (2017,2018,2019)
  • Registered weight class: -35 kg (2017,2018,2019)
  • Source competition limit: -35 kg (2017,2018,2019)

2 matches in the rating period

XIII. GrappleXmas BJJ Cup
≤ 29 kg · Counts as a competition event
Boys Gi / White grey / Pee Wee (7-9 yrs) / -29 kg (2016,2017,2018)
  • Registered weight class: -29 kg (2016,2017,2018)
  • Source competition limit: -29 kg (2016,2017,2018)

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 8 matches in the rating period Selected outcome

Registrations and outcomes

XV. REBEL BJJ CUP
grey · Counts as a match
Boys Gi / White grey / Pee Wee (7-9 yrs) / -35 kg (2017,2018,2019)
  • Source belt category: grey

3 matches in the rating period

N-GEN Kids BJJ Tournament #4
grey · Counts as a match
Boys Gi / White grey / Pee Wee (7-9 yrs) / -35 kg (2017,2018,2019)
  • Source belt category: grey

2 matches in the rating period

XIII. GrappleXmas BJJ Cup
grey · Counts as a match
Boys Gi / White grey / Pee Wee (7-9 yrs) / -29 kg (2016,2017,2018)
  • Source belt category: grey

3 matches in the rating period