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Julian Kruk

Haven BJJ

W–L
1–7
Won and lost rating-eligible matches in the past 12 months.
Gi
1,100
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
1–7
Results from the ten most recent rating-eligible matches.
Opponents
8
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

10
Indexed competition matches
Date Opponent Result Event Division
2026-05-23 Lukas Mok
Loss
GrappleCity: Rotterdam Summer Open Gi · Kids Gi / White / Kids 10-11 years / -35kg
2026-05-23 Nathan Sang-A-Jong
Loss
GrappleCity: Rotterdam Summer Open Gi · Kids Gi / White / Kids 10-11 years / -35kg
2026-03-22 Malik Îshâk Çağlan
Loss
The Future League 9 - Gi & NoGi Gi · Gi - 33
2026-03-22 Bart Franssen
Loss
The Future League 9 - Gi & NoGi Gi · Gi - 33
2026-02-22 Lukas Mok
Win
GrappleCity: Rotterdam Spring Open Gi · Kids Gi / White / Kids 10-11 years / -30kg
2025-11-30 Elias Schlösser
Loss
The Future League 8 – Gi & No-Gi Gi · Gi-05
2025-11-30 Adam Moaddine
Loss
The Future League 8 – Gi & No-Gi Gi · Gi-05
2025-11-30 Filip Roter
Loss
The Future League 8 – Gi & No-Gi Gi · Gi-05
2025-11-09 Dempsey Makatita
Loss
GrappleCity: Rotterdam Winter Open Gi · Kids Gi / White / Kids 8-9 years / -30kg
2025-11-09 Aura Lee
Loss
GrappleCity: Rotterdam Winter Open Gi · Kids Gi / White / Kids 8-9 years / -30kg

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 1,100

Rating-period composition

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

July 2026 No new matches Change 0 Rating 1,100

Rating-period composition

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

June 2026 No new matches Change -2 Rating 1,100

Rating-period composition

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

May 2026 No new matches Change +2 Rating 1,102

Rating-period composition

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

April 2026 No new matches Change -3 Rating 1,100

Rating-period composition

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

March 2026 2 new matches Change -29 Rating 1,103

Rating-period composition

Rating matches
8 +2
Record
1–7 Previous month 1–5
Opponents
8 +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.
Loss
The Future League 9 - Gi & NoGi Gi - 33
Method Submission 00:52 0–0
Marginal influence -18
Loss
March 22, 2026 Bart Franssen
The Future League 9 - Gi & NoGi Gi - 33
Method Submission 01:04 0–0
Marginal influence -21
February 2026 1 new match Change +83 Rating 1,132

Rating-period composition

Rating matches
6 +1
Record
1–5 Previous month 0–5
Opponents
6 +1
Events
3 +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
February 22, 2026 Lukas Mok
GrappleCity: Rotterdam Spring Open Kids Gi / White / Kids 10-11 years / -30kg
Method Submission 00:18 0–0
Marginal influence +48
January 2026 No new matches Change -1 Rating 1,049

Rating-period composition

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

December 2025 No new matches Change +1 Rating 1,050

Rating-period composition

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

November 2025 5 new matches Change Starting point Rating 1,049

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 30, 2025 Elias Schlösser
The Future League 8 – Gi & No-Gi Gi-05
Method Submission 01:05 2–0
Marginal influence -16
Loss
November 30, 2025 Adam Moaddine
The Future League 8 – Gi & No-Gi Gi-05
Method Points 03:00 0–7
Marginal influence -8
Loss
November 30, 2025 Filip Roter
The Future League 8 – Gi & No-Gi Gi-05
Method Submission 03:00 4–0
Marginal influence -16
Loss
November 9, 2025 Dempsey Makatita
GrappleCity: Rotterdam Winter Open Kids Gi / White / Kids 8-9 years / -30kg
Method Points 03:00 0–7
Marginal influence -14
Loss
November 9, 2025 Aura Lee
GrappleCity: Rotterdam Winter Open Kids Gi / White / Kids 8-9 years / -30kg
Method Decision 03:00 0–0
Marginal influence -33
Relevant matches
6.6
Official ranking percentile
Top 98%
Performance
19.7 pp below expectation

6.6 weighted matches against 8 different opponents across 4 events

Weighted win rate
15.4%
Expected win rate
35.1%
Average opponent rating
1,273
Repeated-opponent share
0.0%
Network connectivity
87.6%

Classification evidence

Why U12?

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

  • U12 3 event votes Selected outcome

Registrations and outcomes

GrappleCity: Rotterdam Summer Open
U12 · Counts
Kids Gi / White / Kids 10-11 years / -35kg
  • Competition age 11
  • Registered age: u12
  • Source category: u12
The Future League 9 - Gi & NoGi
U12 · Counts
Gi - 33
  • Competition age 11
  • Registered age: u14
  • Source category: u14
GrappleCity: Rotterdam Spring Open
U12 · Counts
Kids Gi / White / Kids 10-11 years / -30kg
  • Competition age 11
  • Registered age: u12
  • Source category: u12
The Future League 8 – Gi & No-Gi
Does not count
Gi-05
  • Competition age 10
  • Registered age: u12
  • Source category: u12
GrappleCity: Rotterdam Winter Open
Does not count
Kids Gi / White / Kids 8-9 years / -30kg
  • Competition age 10
  • Registered age: u10
  • Source category: u10

Classification evidence

Why ≤ 30 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

  • ≤ 30 kg 2 competition events Selected outcome

Registrations and outcomes

GrappleCity: Rotterdam Summer Open
Does not count
Kids Gi / White / Kids 10-11 years / -35kg
  • Registered weight class: -35kg
  • Source competition limit: -35kg

No matches in the rating period · no valid weight evidence

The Future League 9 - Gi & NoGi
Does not count
Gi - 33

2 matches in the rating period · weight class could not be normalized reliably

GrappleCity: Rotterdam Spring Open
≤ 30 kg · Counts as a competition event
Kids Gi / White / Kids 10-11 years / -30kg
  • Registered weight class: -30kg
  • Source competition limit: -30kg

1 match in the rating period

The Future League 8 – Gi & No-Gi
Does not count
Gi-05

3 matches in the rating period · weight class could not be normalized reliably

GrappleCity: Rotterdam Winter Open
≤ 30 kg · Counts as a competition event
Kids Gi / White / Kids 8-9 years / -30kg
  • Registered weight class: -30kg
  • Source competition limit: -30kg

2 matches in the rating period

Classification evidence

Why White?

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

  • white 3 matches in the rating period Selected outcome

Registrations and outcomes

GrappleCity: Rotterdam Spring Open
white · Counts as a match
Kids Gi / White / Kids 10-11 years / -30kg
  • Source belt category: white

1 match in the rating period

GrappleCity: Rotterdam Winter Open
white · Counts as a match
Kids Gi / White / Kids 8-9 years / -30kg
  • Source belt category: white

2 matches in the rating period