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Joon Arendt

Triangle Jiu-Jitsu Münster

W–L
0–4
Won and lost rating-eligible matches in the past 12 months.
Gi
1,143
Rating based on Gi matches in the past 12 months.
No-Gi
1,120
Rating based on No-Gi matches in the past 12 months.
Current form
0–4
Results from the ten most recent rating-eligible matches.
Opponents
2
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

4
Indexed competition matches
Date Opponent Result Event Division
2025-11-22 Chelsey Co
Loss
2025 AGF Amsterdam Open No-Gi · No Gi Kids / Mixed / Little Kids (6 - 7 yrs) / Gray / Rooster III (Up to 24.94 kg)
2025-11-22 Damin Ahamed
Loss
2025 AGF Amsterdam Open No-Gi · No Gi Kids / Mixed / Little Kids (6 - 7 yrs) / Gray / Rooster III (Up to 24.94 kg)
2025-11-22 Chelsey Co
Loss
2025 AGF Amsterdam Open Gi · Gi Kids / Mixed / Little Kids (6 - 7 yrs) / Gray / Rooster III (Up to 24.94 kg)
2025-11-22 Chelsey Co
Loss
2025 AGF Amsterdam Open Gi · Gi Kids / Mixed / Little Kids (6 - 7 yrs) / Gray / Rooster III (Up to 24.94 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 1,218

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
2 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 0 Rating 1,218

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
2 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 0 Rating 1,218

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
2 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 1,218

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
2 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 0 Rating 1,214

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
2 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 +3 Rating 1,214

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
2 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 +2 Rating 1,211

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
2 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 1,209

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
2 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 Change 0 Rating 1,209

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
2 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.

November 2025 4 new matches Change Starting point Rating 1,209

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 22, 2025 Chelsey Co
2025 AGF Amsterdam Open No Gi Kids / Mixed / Little Kids (6 - 7 yrs) / Gray / Rooster III (Up to 24.94 kg)
Method Submission 02:00 0–8
Marginal influence -18
Loss
November 22, 2025 Damin Ahamed
2025 AGF Amsterdam Open No Gi Kids / Mixed / Little Kids (6 - 7 yrs) / Gray / Rooster III (Up to 24.94 kg)
Method Submission 01:12 0–4
Marginal influence -25
Loss
November 22, 2025 Chelsey Co
2025 AGF Amsterdam Open Gi Kids / Mixed / Little Kids (6 - 7 yrs) / Gray / Rooster III (Up to 24.94 kg)
Method Submission 01:41 0–10
Marginal influence +2
Loss
November 22, 2025 Chelsey Co
2025 AGF Amsterdam Open Gi Kids / Mixed / Little Kids (6 - 7 yrs) / Gray / Rooster III (Up to 24.94 kg)
Method Submission 01:20 2–8
Marginal influence +2
Relevant matches
2.9
Official ranking percentile
-
Performance
-

2.9 weighted matches against 2 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,530
Repeated-opponent share
50.0%
Network connectivity
87.6%

Classification evidence

Why U8?

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

  • U8 1 event vote Selected outcome

Registrations and outcomes

2025 AGF Amsterdam Open
U8 · Counts
No Gi Kids / Mixed / Little Kids (6 - 7 yrs) / Gray / Rooster III (Up to 24.94 kg)
  • Competition age 6
  • Registered age: u8
  • Source category: u8
Gi Kids / Mixed / Little Kids (6 - 7 yrs) / Gray / Rooster III (Up to 24.94 kg)
  • Competition age 6
  • Registered age: u8
  • Source category: u8

Classification evidence

Why ≤ 25 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

  • ≤ 25 kg 1 competition event Selected outcome

Registrations and outcomes

2025 AGF Amsterdam Open
≤ 25 kg · Counts as a competition event
No Gi Kids / Mixed / Little Kids (6 - 7 yrs) / Gray / Rooster III (Up to 24.94 kg)
  • Registered weight class: Rooster III (Up to 24.94 kg)
  • Source competition limit: Rooster III (Up to 24.94 kg)

2 matches in the rating period

2025 AGF Amsterdam Open
≤ 25 kg · Counts as a competition event
Gi Kids / Mixed / Little Kids (6 - 7 yrs) / Gray / Rooster III (Up to 24.94 kg)
  • Registered weight class: Rooster III (Up to 24.94 kg)
  • Source competition limit: Rooster III (Up to 24.94 kg)

2 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 4 matches in the rating period Selected outcome

Registrations and outcomes

2025 AGF Amsterdam Open
grey · Counts as a match
No Gi Kids / Mixed / Little Kids (6 - 7 yrs) / Gray / Rooster III (Up to 24.94 kg)
  • Source belt category: grey

2 matches in the rating period

2025 AGF Amsterdam Open
grey · Counts as a match
Gi Kids / Mixed / Little Kids (6 - 7 yrs) / Gray / Rooster III (Up to 24.94 kg)
  • Source belt category: grey

2 matches in the rating period