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Jason Jonkers

Renzo Gracie Holland

-64 kg
W–L
-
Won and lost rating-eligible matches in the past 12 months.
Gi
-
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
-
Results from the ten most recent rating-eligible matches.
Opponents
-
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
11
Silver
5
Bronze
1
Total medals
17
Events with results
15

Full career record

Wins
27
Losses
10
Matches
37
Win rate
73.0%

Ways of winning

Submission
18
Points
8
Decision
1
Disqualification
0

Personal records

Longest winning streak
15
Longest submission streak
3
Longest gold streak
5
Largest recorded points win
21–0

Recent recorded placements

  1. BJJ Dutch Open 2025

    NL Event record 0–0

    • Gold

  2. 2025 AGF Amsterdam Open

    NL Event record 0–0

    • Gold

  3. Grappling Industries AMSTERDAM

    NL Event record 0–4

    • Gi Kids / Green/Blue / 16 - 17 years (Male) / -125 lbs
    • No Gi Kids / Expert (Green/Blue) / 16 - 17 years (Male) / -125 lbs

  5. King of the Beach 2024

    NL Event record 3–0

    • Sunday Kids Gi / 13 - 15 years boys / Yellow & Orange / -50 & -55 kg

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
25
Distinct events
0

Ways of winning

  • Submission 0
  • Points 0
  • Decision 0
  • Other recorded result 0

Gi versus No-Gi

Gi

Rating
-
Record
-
Win rate
-
Submission share
-

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
-
Change over 90 days
-
Highest rating in 12 months
1,172
Performance versus expectation
-
Schedule strength
-
Average opponent rating
-
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
-
Effective evidence
-
Confidence
-

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 14–6 14–6 across 20 rematches against 8 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

No win over a currently ranked opponent in this period.

Full career

  1. #43 Cristiano Luis · King of the Beach 2024 Sub 02:17 0–0 Earlier · Sub 00:42 0–0 March 30, 2024 · Lion Cub Jiu Jitsu Competition 2

Rivals

Opponent Head-to-head record Matches
Seger Wensveen 1–4 5
Abdoulaye Ballo 2–1 3

Recent tournaments

  1. BJJ Dutch Open 2025

    December 13, 2025
    Gi 0–0

  2. 2025 AGF Amsterdam Open

    November 22, 2025
    Gi 0–0

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.

September 2025 No new matches Change +1 Rating 1,173

Rating-period composition

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

- weighted matches against - different opponents across 0 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
-
Repeated-opponent share
-
Network connectivity
-