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Jay Poort

Brotherhood Haarlem

W–L
7–1
Won and lost rating-eligible matches in the past 12 months.
Gi
-
Rating based on Gi matches in the past 12 months.
No-Gi
1,439
Rating based on No-Gi matches in the past 12 months.
Current form
7–1
Results from the ten most recent rating-eligible matches.
Opponents
6
Unique opponents faced in rating-eligible matches in the past 12 months.

Scheduled

  3. Nijmegen Open NO-Gi

    the Netherlands

    Kids No-Gi / 13 years boys / Yellow / -50 kg
    Confirmed

Tournament history

Events

11
Events
Date Event Result Format Division
Lion Cub Jiu Jitsu Competition 6 the Netherlands · No-Gi · 12–13 yo · grey · ≤46/50 kg 4–0 W–L: Win / Loss No-Gi
  • Boys NO-GI / 12 & 13 years old (DAY 1: Saturday) / Grey belt / -46 & -50 kg
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI the Netherlands · No-Gi · 13–15 yo · white/grey · ≤46 kg 3–1 W–L: Win / Loss No-Gi
  • Kids No-GI / 13 - 15 years / White & Grey / -46 kg & -50 kg
Grappling Industries AMSTERDAM the Netherlands · Gi · 12–13 yo · grey · ≤95 lb ; No-Gi · 12–13 yo · grey · ≤95 lb 2–3 W–L: Win / Loss GiNo-Gi
  • Gi Kids / Grey / 12 - 13 years (Male) / -95 lbs
  • No Gi Kids / Intermediate (Grey) / 12 - 13 years (Male) / -95 lbs
Lion Cub Jiu Jitsu Competition 4 the Netherlands · Gi · 12 yo · grey · ≤42 kg ; No-Gi · 11–13 yo · grey/yellow/orange · ≤38/42 kg 3–4 W–L: Win / Loss GiNo-Gi
  • Boys GI / 12 years old (DAY 1: Saturday) / Grey belt / -42 kg
  • Place #4
Grappling Industries AMSTERDAM the Netherlands · Gi · 12–13 yo · grey · ≤85 lb ; No-Gi · 12–13 yo · grey · ≤85 lb 4–0 W–L: Win / Loss GiNo-Gi
  • Gi Kids / Grey / 12 - 13 years (Male) / -85 lbs
  • No Gi Kids / Intermediate (Grey) / 12 - 13 years (Male) / -85 lbs
Lion Cub Jiu Jitsu Competition 3 the Netherlands · Gi · grey · ≤42 kg 3–1 W–L: Win / Loss Gi
  • Boys / 10 - 12 Boys / Grey / -42 kg
Grappling Industries AMSTERDAM the Netherlands · Gi · 10–11 yo · yellow/orange · ≤85 lb ; No-Gi · 10–11 yo · yellow/orange · ≤85 lb 2–4 W–L: Win / Loss GiNo-Gi
  • Gi Kids / Yellow/Orange / 10 - 11 years / -85 lbs
  • No Gi Kids / Advanced (Yellow/Orange) / 10 - 11 years / -85 lbs
Lion Cub Jiu Jitsu Competition 1 the Netherlands · Gi · white/grey/yellow · ≤38 kg 2–2 W–L: Win / Loss Gi
  • Boys / 10 - 12 Boys / White & Grey & Yellow / -38 kg
Grappling Industries AMSTERDAM the Netherlands · Gi · 10–11 yo · grey · ≤75 lb ; No-Gi · 10–11 yo · grey · ≤75 lb 6–2 W–L: Win / Loss GiNo-Gi
  • No Gi Kids / Intermediate (Grey) / 10 - 11 years / -75 lbs
  • Gi Kids / Grey / 10 - 11 years / -75 lbs
Grappling Industries AMSTERDAM the Netherlands · Gi · 8–9 yo · white · ≤75 lb ; No-Gi · 8–9 yo · white · ≤75 lb 4–1 W–L: Win / Loss GiNo-Gi
  • No Gi Kids / Beginner (White) / 8 - 9 years / -75 lbs
  • Gi Kids / White / 8 - 9 years / -75 lbs
Nijmegen Open BJJ 2022 the Netherlands · Gi · 8–9 yo · white/grey/yellow · ≤34 kg 2–2 W–L: Win / Loss Gi
  • Kids / 8 - 9 years boys / White & Grey & Yellow / -34 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 +4 Rating 1,439

Rating-period composition

Rating matches
8 0
Record
7–1 Previous month 7–1
Opponents
6 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 -2 Rating 1,435

Rating-period composition

Rating matches
8 0
Record
7–1 Previous month 7–1
Opponents
6 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 +5 Rating 1,437

Rating-period composition

Rating matches
8 0
Record
7–1 Previous month 7–1
Opponents
6 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 4 new matches · 5 left period Change +66 Rating 1,432

Rating-period composition

Rating matches
8 -1
Record
7–1 Previous month 5–4
Opponents
6 +2
Events
2 0

5 older matches left the 12-month period: 2 won and 3 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
May 9, 2026 Euan Besems
Lion Cub Jiu Jitsu Competition 6 Boys NO-GI / 12 & 13 years old (DAY 1: Saturday) / Grey belt / -46 & -50 kg
Method Decision 00:31 2–6
Marginal influence +28
Win
Lion Cub Jiu Jitsu Competition 6 Boys NO-GI / 12 & 13 years old (DAY 1: Saturday) / Grey belt / -46 & -50 kg
Method Points 04:00 9–0
Marginal influence +8
Win
May 9, 2026 Mayson Bonte
Lion Cub Jiu Jitsu Competition 6 Boys NO-GI / 12 & 13 years old (DAY 1: Saturday) / Grey belt / -46 & -50 kg
Method Submission 01:06 2–2
Marginal influence +17
Win
May 9, 2026 Rayan Mouhdad
Lion Cub Jiu Jitsu Competition 6 Boys NO-GI / 12 & 13 years old (DAY 1: Saturday) / Grey belt / -46 & -50 kg
Method Submission 03:11 2–4
Marginal influence +19
April 2026 No new matches · 7 left period Change -15 Rating 1,366

Rating-period composition

Rating matches
9 -7
Record
5–4 Previous month 8–8
Opponents
4 -5
Events
2 -1

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

March 2026 4 new matches Change +56 Rating 1,381

Rating-period composition

Rating matches
16 +4
Record
8–8 Previous month 5–7
Opponents
9 +2
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
March 28, 2026 Rayan Mouhdad
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids No-GI / 13 - 15 years / White & Grey / -46 kg & -50 kg
Method Submission 02:16 7–2
Marginal influence +19
Win
March 28, 2026 Jesse Van Den Berg
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids No-GI / 13 - 15 years / White & Grey / -46 kg & -50 kg
Method Submission 02:06 6–0
Marginal influence +8
Win
March 28, 2026 Amy Broodkoorn
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids No-GI / 13 - 15 years / White & Grey / -46 kg & -50 kg
Method Points 04:00 8–6
Marginal influence +28
Loss
March 28, 2026 Euan Besems
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids No-GI / 13 - 15 years / White & Grey / -46 kg & -50 kg
Method Points 04:00 0–11
Marginal influence -20
February 2026 No new matches · 3 left period Change -49 Rating 1,325

Rating-period composition

Rating matches
12 -3
Record
5–7 Previous month 8–7
Opponents
7 -1
Events
2 -1

3 older matches left the 12-month period: 3 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

January 2026 No new matches Change +2 Rating 1,374

Rating-period composition

Rating matches
15 0
Record
8–7 Previous month 8–7
Opponents
8 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 No new matches Change 0 Rating 1,372

Rating-period composition

Rating matches
15 0
Record
8–7 Previous month 8–7
Opponents
8 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.

November 2025 No new matches Change +5 Rating 1,372

Rating-period composition

Rating matches
15 0
Record
8–7 Previous month 8–7
Opponents
8 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.

October 2025 No new matches · 4 left period Change -29 Rating 1,367

Rating-period composition

Rating matches
15 -4
Record
8–7 Previous month 11–8
Opponents
8 -3
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.

September 2025 No new matches Change +2 Rating 1,396

Rating-period composition

Rating matches
19 0
Record
11–8 Previous month 11–8
Opponents
11 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
4.8
Official ranking percentile
Top 19%
Performance
-

4.8 weighted matches against 6 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,444
Repeated-opponent share
25.0%
Network connectivity
87.6%

Classification evidence

Why U14?

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

  • U14 2 event votes Selected outcome

Registrations and outcomes

Lion Cub Jiu Jitsu Competition 6
U14 · Counts
Boys NO-GI / 12 & 13 years old (DAY 1: Saturday) / Grey belt / -46 & -50 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI
U14 · Counts
Kids No-GI / 13 - 15 years / White & Grey / -46 kg & -50 kg
  • Competition age 13
  • Registered age: u16
  • Source category: u16

Classification evidence

Why ≤ 46 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

  • ≤ 46 kg 1 competition event Selected outcome
  • ≤ 50 kg 1 competition event

Registrations and outcomes

Lion Cub Jiu Jitsu Competition 6
≤ 50 kg · Counts as a competition event
Boys NO-GI / 12 & 13 years old (DAY 1: Saturday) / Grey belt / -46 & -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

4 matches in the rating period

International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI
≤ 46 kg · Counts as a competition event
Kids No-GI / 13 - 15 years / White & Grey / -46 kg & -50 kg
  • Registered weight class: -46 kg
  • Source competition limit: -46 kg

4 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
  • white 4 matches in the rating period

Registrations and outcomes

Lion Cub Jiu Jitsu Competition 6
grey · Counts as a match
Boys NO-GI / 12 & 13 years old (DAY 1: Saturday) / Grey belt / -46 & -50 kg
  • Source belt category: grey

4 matches in the rating period

International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI
white · Counts as a match
Kids No-GI / 13 - 15 years / White & Grey / -46 kg & -50 kg
  • Source belt category: white

4 matches in the rating period