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NL

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.

Honours

Medals and placements

Gold
6
Silver
6
Bronze
4
Total medals
16
Events with results
11

Full career record

Wins
35
Losses
20
Matches
55
Win rate
63.6%

Ways of winning

Submission
17
Points
12
Decision
4
Disqualification
0

Personal records

Longest winning streak
7
Longest submission streak
4
Longest gold streak
1
Largest recorded points win
15–0

Recent recorded placements

  3. Grappling Industries AMSTERDAM

    NL Event record 2–3

    • Gi Kids / Grey / 12 - 13 years (Male) / -95 lbs
    • No Gi Kids / Intermediate (Grey) / 12 - 13 years (Male) / -95 lbs

  5. Grappling Industries AMSTERDAM

    NL Event record 4–0

    • Gi Kids / Grey / 12 - 13 years (Male) / -85 lbs
    • No Gi Kids / Intermediate (Grey) / 12 - 13 years (Male) / -85 lbs

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
7
Unique opponents
6
Distinct events
2

Ways of winning

  • Submission 4 57%
  • Points 2 29%
  • Decision 1 14%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
-
Record
-
Win rate
-
Submission share
-

No-Gi

Rating
1439
Record
7–1
Win rate
88%
Submission share
57%

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
1,439
Change over 90 days
+38
Highest rating in 12 months
1,432
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,444
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
25%
Effective evidence
4.8
Confidence
65/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 25–14 25–14 across 39 rematches against 15 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #11 Euan Besems · Lion Cub Jiu Jitsu Competition 6 Dec 2–6
  2. #83 Amy Broodkoorn · International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Pts 8–6
  3. #85 Rayan Mouhdad · Lion Cub Jiu Jitsu Competition 6 Sub 03:11 2–4 Earlier · Sub 02:16 7–2 March 28, 2026 · International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI
  4. #741 Romaoric Van Rijnsoever · Lion Cub Jiu Jitsu Competition 6 Pts 9–0
  5. #831 Mayson Bonte · Lion Cub Jiu Jitsu Competition 6 Sub 01:06 2–2
  6. #1364 Jesse Van Den Berg · International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Sub 02:06 6–0

Full career

  1. #1 Kris Bruce Kerssies · Grappling Industries AMSTERDAM Sub 01:18 0–2
  2. #11 Euan Besems · Lion Cub Jiu Jitsu Competition 6 Dec 2–6 Earlier · Sub 01:51 2–0 May 3, 2025 · Grappling Industries AMSTERDAM
  3. #83 Amy Broodkoorn · International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Pts 8–6
  4. #85 Rayan Mouhdad · Lion Cub Jiu Jitsu Competition 6 Sub 03:11 2–4 Earlier · Sub 02:16 7–2 March 28, 2026 · International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI
  5. #212 Boaz Van Der Bom · Grappling Industries AMSTERDAM Pts 6–0
  6. #652 Liam Gevaert · Lion Cub Jiu Jitsu Competition 4 Pts 4–0
  7. #741 Romaoric Van Rijnsoever · Lion Cub Jiu Jitsu Competition 6 Pts 9–0 Earlier · Sub 02:55 0–2 April 19, 2025 · Lion Cub Jiu Jitsu Competition 4
  8. #831 Mayson Bonte · Lion Cub Jiu Jitsu Competition 6 Sub 01:06 2–2
  9. #999 Julius Van Leijen · Lion Cub Jiu Jitsu Competition 3 Dec 0–0
  10. #1364 Jesse Van Den Berg · International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Sub 02:06 6–0

Rivals

Opponent Head-to-head record Matches
Euan Besems 4–4 8
Patryk Saluk 3–0 3
Rayan Mouhdad 2–1 3

Around this athlete

Athlete Rank Rating
Selmene Zeggaï #269 1,439
Jay Poort #270 1,439

Scheduled

  3. Nijmegen Open NO-Gi

    the Netherlands

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

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 +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