TopBJJ Index Youth
Language selector
Menu

Calculation details

Rating breakdown for the past 12 months

Close

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 1,484

Rating-period composition

Rating matches
24 0
Record
18–6 Previous month 18–6
Opponents
15 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 -2 Rating 1,481

Rating-period composition

Rating matches
24 0
Record
18–6 Previous month 18–6
Opponents
15 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 · 6 left period Change -12 Rating 1,483

Rating-period composition

Rating matches
24 -6
Record
18–6 Previous month 22–8
Opponents
15 -4
Events
4 -1

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

May 2026 No new matches · 8 left period Change -26 Rating 1,495

Rating-period composition

Rating matches
30 -8
Record
22–8 Previous month 29–9
Opponents
19 -7
Events
5 -2

8 older matches left the 12-month period: 7 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

April 2026 9 new matches Change -26 Rating 1,521

Rating-period composition

Rating matches
38 +9
Record
29–9 Previous month 24–5
Opponents
26 +3
Events
7 +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
April 18, 2026 Muhammad Sakaev
2026 AGF Netherlands Championships No Gi Kids / Boys / Juniors (12 - 13 yrs) / Gray / Light I (Up to 43.10 kg)
Method Submission 02:34 0–2
Marginal influence +7
Loss
April 18, 2026 Kivanc Uygun
2026 AGF Netherlands Championships No Gi Kids / Boys / Juniors (12 - 13 yrs) / Gray / Light I (Up to 43.10 kg)
Method Submission 02:19 0–10
Marginal influence -16
Loss
April 18, 2026 Rayan Mouhdad
2026 AGF Netherlands Championships No Gi Kids Challenger / Boys / Regular Challenger / Light II (Up to 47.60 kg)
Method Submission 01:30 0–2
Marginal influence -13
Win
April 18, 2026 Muhammad Sakaev
2026 AGF Netherlands Championships No Gi Kids Challenger / Boys / Regular Challenger / Light II (Up to 47.60 kg)
Method Points 03:00 5–2
Marginal influence +7
Win
April 18, 2026 Frits Van Est
2026 AGF Netherlands Championships No Gi Kids Challenger / Boys / Regular Challenger / Light II (Up to 47.60 kg)
Method Submission 00:16 0–0
Marginal influence +3
Loss
April 18, 2026 Rayan Mouhdad
2026 AGF Netherlands Championships Gi Kids Challenger / Boys / Regular Challenger / Light II (Up to 47.60 kg)
Method Submission 01:16 0–4
Marginal influence -9
Win
April 18, 2026 Kivanc Uygun
2026 AGF Netherlands Championships Gi Kids / Boys / Juniors (12 - 13 yrs) / Gray / Light I (Up to 43.10 kg)
Method Points 03:00 2–1
Marginal influence +6
Win
April 18, 2026 Kivanc Uygun
2026 AGF Netherlands Championships Gi Kids / Boys / Juniors (12 - 13 yrs) / Gray / Light I (Up to 43.10 kg)
Method Points 03:00 5–2
Marginal influence +6
Loss
April 18, 2026 Kivanc Uygun
2026 AGF Netherlands Championships Gi Kids / Boys / Juniors (12 - 13 yrs) / Gray / Light I (Up to 43.10 kg)
Method Points 03:00 1–2
Marginal influence -6
March 2026 6 new matches · 4 left period Change +54 Rating 1,547

Rating-period composition

Rating matches
29 +2
Record
24–5 Previous month 19–8
Opponents
23 +1
Events
6 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
March 21, 2026 Leo De Vuyst
Grappling Industries BRUSSELS No Gi Kids / 12 - 13 years (Male) / Intermediate (Grey) / -95 lbs
Method Submission 00:14 0–0
Marginal influence +2
Win
March 21, 2026 Senne Van Der Perre
Grappling Industries BRUSSELS No Gi Kids / 12 - 13 years (Male) / Intermediate (Grey) / -95 lbs
Method Submission 01:21 6–0
Marginal influence +8
Win
March 21, 2026 Wolf De Wint
Grappling Industries BRUSSELS No Gi Kids / 12 - 13 years (Male) / Intermediate (Grey) / -95 lbs
Method Submission 00:43 4–0
Marginal influence +3
Win
March 21, 2026 Wolf De Wint
Grappling Industries BRUSSELS Gi Kids / 12 - 13 years (Male) / Grey / -95 lbs
Method Submission 01:09 6–0
Marginal influence +6
Win
March 21, 2026 Leo De Vuyst
Grappling Industries BRUSSELS Gi Kids / 12 - 13 years (Male) / Grey / -95 lbs
Method Submission 01:20 8–0
Marginal influence +10
Win
March 21, 2026 Senne Van Der Perre
Grappling Industries BRUSSELS Gi Kids / 12 - 13 years (Male) / Grey / -95 lbs
Method Points 03:00 6–0
Marginal influence +10
February 2026 No new matches Change +3 Rating 1,493

Rating-period composition

Rating matches
27 0
Record
19–8 Previous month 19–8
Opponents
22 0
Events
6 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 · 5 left period Change -40 Rating 1,490

Rating-period composition

Rating matches
27 -5
Record
19–8 Previous month 23–9
Opponents
22 -2
Events
6 -2

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.

December 2025 No new matches Change -1 Rating 1,530

Rating-period composition

Rating matches
32 0
Record
23–9 Previous month 23–9
Opponents
24 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.

November 2025 1 new match · 4 left period Change +1 Rating 1,531

Rating-period composition

Rating matches
32 -3
Record
23–9 Previous month 26–9
Opponents
24 -2
Events
8 0

4 older matches left the 12-month period: 4 won and 0 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 Jayden Van Vliet
GrappleCity: Rotterdam Winter Open Teens Gi / Grey / 12-13 years / -50kg / Boy
Method Points 04:00 10–4
Marginal influence +17
October 2025 8 new matches · 4 left period Change +7 Rating 1,530

Rating-period composition

Rating matches
35 +4
Record
26–9 Previous month 23–8
Opponents
26 +2
Events
8 0

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.

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
October 25, 2025 Romaoric Van Rijnsoever
Lion Cub Jiu Jitsu Competition 5 Boys GI / 12 years old (DAY 1: Saturday) / Grey belt / -42 & -46 kg
Method Submission 00:35 6–0
Marginal influence +13
Win
October 25, 2025 Anouar Mokhtar
Lion Cub Jiu Jitsu Competition 5 Boys GI / 12 years old (DAY 1: Saturday) / Grey belt / -42 & -46 kg
Method Points 03:00 4–2
Marginal influence +8
Win
October 25, 2025 Anas Ouriaghli
Lion Cub Jiu Jitsu Competition 5 Boys GI / 12 years old (DAY 1: Saturday) / Grey belt / -42 & -46 kg
Method Submission 00:22 0–0
Marginal influence +6
Win
October 25, 2025 Kivanc Uygun
Lion Cub Jiu Jitsu Competition 5 Boys GI / 12 years old (DAY 1: Saturday) / Grey belt / -42 & -46 kg
Method Submission 01:05 0–0
Marginal influence +6
Win
October 25, 2025 Skyler Van Daalen
Lion Cub Jiu Jitsu Competition 5 Boys NO-GI / 12 years old (DAY 1: Saturday) / White & Grey & Yellow belt / -42 kg
Method Submission 01:15 6–0
Marginal influence +4
Loss
October 25, 2025 Sonny Van Heeswijk
Lion Cub Jiu Jitsu Competition 5 Boys NO-GI / 12 years old (DAY 1: Saturday) / White & Grey & Yellow belt / -42 kg
Method Submission 00:57 3–0
Marginal influence -13
Win
October 25, 2025 YANNIS ROSU
Lion Cub Jiu Jitsu Competition 5 Boys NO-GI / 12 years old (DAY 1: Saturday) / White & Grey & Yellow belt / -42 kg
Method Submission 01:05 6–0
Marginal influence +4
Loss
October 25, 2025 Obayd Zouggari
Lion Cub Jiu Jitsu Competition 5 Boys NO-GI / 12 years old (DAY 1: Saturday) / White & Grey & Yellow belt / -42 kg
Method Submission 01:41 0–0
Marginal influence -15
September 2025 No new matches Change -1 Rating 1,523

Rating-period composition

Rating matches
31 0
Record
23–8 Previous month 23–8
Opponents
24 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.

Relevant matches
15.6
Official ranking percentile
Top 10%
Performance
12.0 pp above expectation

15.6 weighted matches against 15 different opponents across 4 events

Weighted win rate
75.5%
Expected win rate
63.5%
Average opponent rating
1,351
Repeated-opponent share
37.5%
Network connectivity
80.9%