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Calculation details

Rating breakdown for the past 12 months

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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 +3 Rating 1,421

Rating-period composition

Rating matches
30 0
Record
15–15 Previous month 15–15
Opponents
24 0
Events
7 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 · 6 left period Change -5 Rating 1,418

Rating-period composition

Rating matches
30 -6
Record
15–15 Previous month 17–19
Opponents
24 -2
Events
7 -1

6 older matches left the 12-month period: 2 won and 4 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

June 2026 No new matches Change +2 Rating 1,423

Rating-period composition

Rating matches
36 0
Record
17–19 Previous month 17–19
Opponents
26 0
Events
8 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 · 11 left period Change -70 Rating 1,421

Rating-period composition

Rating matches
36 -7
Record
17–19 Previous month 25–18
Opponents
26 -10
Events
8 -2

11 older matches left the 12-month period: 10 won and 1 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.
Loss
Nijmegen Open BJJ 2026 Kids / 8 - 9 years boys / Grey / -34 kg
Method Submission 00:42 0–7
Marginal influence -1
Win
May 30, 2026 Noud De Jong
Nijmegen Open BJJ 2026 Kids / 8 - 9 years boys / Grey / -34 kg
Method Points 03:00 2–0
Marginal influence +6
Loss
May 30, 2026 Omar Tahiri
Nijmegen Open BJJ 2026 Kids / 8 - 9 years boys / Grey / -34 kg
Method Decision 03:00 0–0
Marginal influence -14
Win
May 30, 2026 Jayce Tai
Nijmegen Open BJJ 2026 Kids / 8 - 9 years boys / Grey / -34 kg
Method Points 03:00 0–0
Marginal influence +8
April 2026 No new matches · 5 left period Change -13 Rating 1,491

Rating-period composition

Rating matches
43 -5
Record
25–18 Previous month 29–19
Opponents
36 -4
Events
10 -1

5 older matches left the 12-month period: 4 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

March 2026 7 new matches · 7 left period Change -22 Rating 1,504

Rating-period composition

Rating matches
48 0
Record
29–19 Previous month 31–17
Opponents
40 +5
Events
11 -1

7 older matches left the 12-month period: 4 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
March 28, 2026 Ahmed Nureddin
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids GI / 8 - 9 years / White & Grey / -34 kg
Method Points 03:00 4–4
Marginal influence +11
Loss
March 28, 2026 Jinte Hurkens
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids GI / 8 - 9 years / White & Grey / -34 kg
Method Points 03:00 0–19
Marginal influence -6
Loss
March 28, 2026 Jayce Tai
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids GI / 8 - 9 years / White & Grey / -34 kg
Method Points 03:00 2–3
Marginal influence -7
Win
March 28, 2026 Noud De Jong
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids GI / 8 - 9 years / White & Grey / -34 kg
Method Decision 03:00 0–0
Marginal influence +6
Loss
March 28, 2026 Sem Schildermans
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids No-GI / 8 - 9 years / Grey / -30 kg & -34 kg
Method Points 03:00 0–5
Marginal influence -8
Loss
March 28, 2026 Meaya-Lynn Poort
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids No-GI / 8 - 9 years / Grey / -30 kg & -34 kg
Method Points 03:00 3–14
Marginal influence -15
Loss
March 28, 2026 Floris Ilario
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids No-GI / 8 - 9 years / Grey / -30 kg & -34 kg
Method Points 03:00 2–2
Marginal influence -11
February 2026 4 new matches Change +16 Rating 1,526

Rating-period composition

Rating matches
48 +4
Record
31–17 Previous month 28–16
Opponents
35 +2
Events
12 +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 Kais De Boisgency
GrappleCity: Rotterdam Spring Open Kids Gi / Grey / Kids 8-9 years / -30kg
Method Disqualification 0–0
Marginal influence +18
Win
February 22, 2026 Maria Clara Lantin Rosa
GrappleCity: Rotterdam Spring Open Kids Gi / Grey / Kids 8-9 years / -30kg
Method Decision 03:00 0–0
Marginal influence +9
Loss
February 22, 2026 Joe Smol
GrappleCity: Rotterdam Spring Open Kids Gi / Grey / Kids 8-9 years / -30kg
Method Points 03:00 0–14
Marginal influence -5
Win
February 22, 2026 Augusto Sam-Sin
GrappleCity: Rotterdam Spring Open Kids Gi / Grey / Kids 8-9 years / -30kg
Method Points 03:00 4–2
Marginal influence +9
January 2026 2 new matches · 3 left period Change +3 Rating 1,510

Rating-period composition

Rating matches
44 -1
Record
28–16 Previous month 28–17
Opponents
33 0
Events
11 0

3 older matches left the 12-month period: 0 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.
Loss
January 24, 2026 Souhayl Jaanin
2026 AGF Brugge Championships No Gi Kids / Boys / Kids (8 - 9 yrs) / Gray / Feather I (Up to 29.50 kg)
Method Submission 02:22 2–5
Marginal influence -8
Loss
January 24, 2026 Mateus Martins
2026 AGF Brugge Championships No Gi Kids / Boys / Kids (8 - 9 yrs) / Gray / Feather I (Up to 29.50 kg)
Method Points 03:00 0–5
Marginal influence -8
December 2025 No new matches Change +1 Rating 1,507

Rating-period composition

Rating matches
45 0
Record
28–17 Previous month 28–17
Opponents
33 0
Events
11 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 · 4 left period Change +37 Rating 1,506

Rating-period composition

Rating matches
45 0
Record
28–17 Previous month 25–20
Opponents
33 +3
Events
11 0

4 older matches left the 12-month period: 1 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
November 9, 2025 Moussa Allach
GrappleCity: Rotterdam Winter Open Kids NoGi / White / Kids 6-7 years / -30kg
Method Points 03:00 11–4
Marginal influence +7
Win
November 9, 2025 Moussa Allach
GrappleCity: Rotterdam Winter Open Kids NoGi / White / Kids 6-7 years / -30kg
Method Submission 02:03 0–2
Marginal influence +7
Win
November 9, 2025 Mika Vroon
GrappleCity: Rotterdam Winter Open Kids Gi / White / Kids 6-7 years / -30kg
Method Submission 00:11 0–0
Marginal influence +7
Win
November 9, 2025 David Plak
GrappleCity: Rotterdam Winter Open Kids Gi / White / Kids 6-7 years / -30kg
Method Submission 0–0
Marginal influence +15
October 2025 6 new matches Change -6 Rating 1,469

Rating-period composition

Rating matches
45 +6
Record
25–20 Previous month 22–17
Opponents
30 +4
Events
11 +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
October 25, 2025 Emilio De Wit
Lion Cub Jiu Jitsu Competition 5 Boys GI / 6 & 7 years old (DAY 2: Sunday) / White belt / -30 & -34 kg
Method Points 03:00 0–0
Marginal influence -9
Win
October 25, 2025 Noah Ziamari
Lion Cub Jiu Jitsu Competition 5 Boys GI / 6 & 7 years old (DAY 2: Sunday) / White belt / -30 & -34 kg
Method Submission 00:07 0–0
Marginal influence +7
Win
October 25, 2025 Michele Mendolia
Lion Cub Jiu Jitsu Competition 5 Boys GI / 6 & 7 years old (DAY 2: Sunday) / White belt / -30 & -34 kg
Method Submission 02:13 0–0
Marginal influence +9
Win
October 25, 2025 Emilio De Wit
Lion Cub Jiu Jitsu Competition 5 Boys NO-GI / 7 & 8 years old (DAY 2: Sunday) / White belt / -30 kg
Method Submission 02:07 2–8
Marginal influence +6
Loss
October 25, 2025 Joe Smol
Lion Cub Jiu Jitsu Competition 5 Boys NO-GI / 7 & 8 years old (DAY 2: Sunday) / White belt / -30 kg
Method Points 03:00 0–3
Marginal influence -8
Loss
October 25, 2025 Leon Hyldedahl
Lion Cub Jiu Jitsu Competition 5 Boys NO-GI / 7 & 8 years old (DAY 2: Sunday) / White belt / -30 kg
Method Points 03:00 2–7
Marginal influence -14
September 2025 3 new matches Change +6 Rating 1,475

Rating-period composition

Rating matches
39 +3
Record
22–17 Previous month 21–15
Opponents
26 +1
Events
10 +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
September 7, 2025 Saifedinne Bouhany
Gelders Open BJJ Kids / 7 & 8 years / White & Grey / -27 & -30 kg
Method Points 02:00 0–0
Marginal influence -2
Loss
Gelders Open BJJ Kids / 7 & 8 years / White & Grey / -27 & -30 kg
Method Points 02:00 0–13
Marginal influence -8
Win
September 7, 2025 Omar Tahsin Haji Moustafa
Gelders Open BJJ Kids / 7 & 8 years / White & Grey / -27 & -30 kg
Method Submission 01:02 2–2
Marginal influence +12
Relevant matches
20.9
Official ranking percentile
Top 22%
Performance
1.4 pp above expectation

20.9 weighted matches against 24 different opponents across 7 events

Weighted win rate
49.5%
Expected win rate
48.1%
Average opponent rating
1,395
Repeated-opponent share
20.0%
Network connectivity
80.9%