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 0 Rating 1,544

Rating-period composition

Rating matches
33 0
Record
26–7 Previous month 26–7
Opponents
21 0
Events
9 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 1,544

Rating-period composition

Rating matches
33 0
Record
26–7 Previous month 26–7
Opponents
21 0
Events
9 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

June 2026 5 new matches Change +6 Rating 1,544

Rating-period composition

Rating matches
33 +5
Record
26–7 Previous month 22–6
Opponents
21 +4
Events
9 +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
Cauliflower Cup Circuit 2 Girls Gi / White / Junior II (11yrs) / -36,30 kg
Method Submission 02:30 0–0
Marginal influence -17
Win
June 6, 2026 You An Sun
Cauliflower Cup Circuit 2 Girls Gi / White / Junior II (11yrs) / -36,30 kg
Method Submission 04:46 6–0
Marginal influence +5
Win
Cauliflower Cup Circuit 2 Girls Gi / Grey / Junior I (10yrs) / -30,40 kg
Method Points 05:00 12–0
Marginal influence +4
Win
June 6, 2026 Mida Janthajorn
Cauliflower Cup Circuit 2 Girls Gi / Grey / Junior I (10yrs) / -30,40 kg
Method Submission 03:07 10–0
Marginal influence +4
Win
June 6, 2026 Safiyah Zoakman
Cauliflower Cup Circuit 2 Girls Gi / Grey / Junior I (10yrs) / -30,40 kg
Method Submission 02:21 0–2
Marginal influence +2
May 2026 10 new matches · 3 left period Change +84 Rating 1,538

Rating-period composition

Rating matches
28 +7
Record
22–6 Previous month 16–5
Opponents
17 +5
Events
8 +1

3 older matches left the 12-month period: 1 won and 2 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 30, 2026 Sophie De Goede
Nijmegen Open BJJ 2026 Kids / 8 - 9 years girls / White & Grey / -30 & -34 kg
Method Submission 02:19 9–0
Marginal influence +4
Win
May 30, 2026 Elissa May Attaea
Nijmegen Open BJJ 2026 Kids / 8 - 9 years girls / White & Grey / -30 & -34 kg
Method Submission 01:23 6–0
Marginal influence +4
Win
May 30, 2026 Filipa Brito
Nijmegen Open BJJ 2026 Kids / 8 - 9 years girls / White & Grey / -30 & -34 kg
Method Submission 02:09 10–0
Marginal influence +9
Loss
NAGA Germany Grappling Championship Children Gi (Female) / Beginner / 30 - 34.9 / 8-9 years
Method Submission 02:04 0–7
Marginal influence -13
Win
May 23, 2026 Anni Diana Goller
NAGA Germany Grappling Championship Children Gi (Female) / Beginner / 30 - 34.9 / 8-9 years
Method Points 03:00 12–0
Marginal influence +9
Loss
NAGA Germany Grappling Championship Children No-Gi (Female) / Beginner / 30 - 34.9 / 8-9 years
Method Submission 00:32 0–3
Marginal influence -5
Loss
May 23, 2026 Anni Diana Goller
NAGA Germany Grappling Championship Children No-Gi (Female) / Beginner / 30 - 34.9 / 8-9 years
Method Submission 02:00 7–2
Marginal influence -9
Win
May 9, 2026 Alisa Vymorkova
Lion Cub Jiu Jitsu Competition 6 Girls GI / 8 - 10 years old (DAY 2: Sunday) / White & Grey belt / -34 kg
Method Submission 00:09 0–0
Marginal influence +4
Win
Lion Cub Jiu Jitsu Competition 6 Girls GI / 8 - 10 years old (DAY 2: Sunday) / White & Grey belt / -34 kg
Method Submission 02:40 6–0
Marginal influence +7
Win
Lion Cub Jiu Jitsu Competition 6 Girls GI / 8 - 10 years old (DAY 2: Sunday) / White & Grey belt / -34 kg
Method Submission 00:58 6–0
Marginal influence +7
April 2026 5 new matches · 2 left period Change -5 Rating 1,454

Rating-period composition

Rating matches
21 +3
Record
16–5 Previous month 14–4
Opponents
12 -2
Events
7 0

2 older matches left the 12-month period: 2 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
April 18, 2026 Lia Liberato
2026 AGF Netherlands Championships No Gi Kids Challenger / Girls / Regular Challenger / Feather II (Up to 34.00 kg)
Method Points 03:00 6–3
Marginal influence +5
Win
April 18, 2026 Lia Liberato
2026 AGF Netherlands Championships No Gi Kids / Girls / Kids (8 - 9 yrs) / Gray / Feather II (Up to 34.00 kg)
Method Points 03:00 6–2
Marginal influence +5
Win
April 18, 2026 Lia Liberato
2026 AGF Netherlands Championships No Gi Kids / Girls / Kids (8 - 9 yrs) / Gray / Feather II (Up to 34.00 kg)
Method Points 03:00 5–2
Marginal influence +5
Loss
April 18, 2026 Lia Liberato
2026 AGF Netherlands Championships No Gi Kids / Girls / Kids (8 - 9 yrs) / Gray / Feather II (Up to 34.00 kg)
Method Submission 02:39 2–0
Marginal influence -3
Win
April 18, 2026 Lia Liberato
2026 AGF Netherlands Championships Gi Kids Challenger / Girls / Regular Challenger / Feather II (Up to 34.00 kg)
Method Points 03:00 12–3
Marginal influence +7
March 2026 4 new matches Change +64 Rating 1,459

Rating-period composition

Rating matches
18 +4
Record
14–4 Previous month 10–4
Opponents
14 +2
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
March 15, 2026 Roxy Van Zoolingen
Cauliflower Cup Circuit Girls Gi / Grey / Junior I (10yrs) / -30,40 kg
Method Decision 05:00 0–0
Marginal influence +4
Win
March 15, 2026 Ghislaine K
Cauliflower Cup Circuit Girls Gi / Grey / Junior I (10yrs) / -30,40 kg
Method Decision 05:00 0–0
Marginal influence +8
Win
March 15, 2026 Ghislaine K
Cauliflower Cup Circuit Girls No-Gi / Grey / Junior I (10yrs) / -28,80 kg
Method Points 05:00 6–2
Marginal influence +4
Win
March 15, 2026 Ghislaine K
Cauliflower Cup Circuit Girls No-Gi / Grey / Junior I (10yrs) / -28,80 kg
Method Points 05:00 9–2
Marginal influence +4
February 2026 No new matches Change -1 Rating 1,395

Rating-period composition

Rating matches
14 0
Record
10–4 Previous month 10–4
Opponents
12 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 Change 0 Rating 1,396

Rating-period composition

Rating matches
14 0
Record
10–4 Previous month 10–4
Opponents
12 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.

December 2025 No new matches Change 0 Rating 1,396

Rating-period composition

Rating matches
14 0
Record
10–4 Previous month 10–4
Opponents
12 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.

November 2025 4 new matches · 4 left period Change -38 Rating 1,396

Rating-period composition

Rating matches
14 0
Record
10–4 Previous month 11–3
Opponents
12 0
Events
6 +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.

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 9, 2025 Daniel Magomedov
GrappleCity: Rotterdam Winter Open Kids Gi / Grey / Kids 8-9 years / -30kg
Method Points 03:00 0–2
Marginal influence -17
Loss
November 9, 2025 Sem Schildermans
GrappleCity: Rotterdam Winter Open Kids Gi / Grey / Kids 8-9 years / -30kg
Method Submission 01:53 2–0
Marginal influence -16
Win
November 2, 2025 Yuki The
Grappling Industries AMSTERDAM Gi Kids / Grey / 8 - 9 years / -65 lbs
Method Decision 03:00 0–0
Marginal influence +3
Win
November 2, 2025 Yuki The
Grappling Industries AMSTERDAM Gi Kids / Grey / 8 - 9 years / -65 lbs
Method Points 03:00 6–0
Marginal influence +3
October 2025 5 new matches · 3 left period Change +22 Rating 1,434

Rating-period composition

Rating matches
14 +2
Record
11–3 Previous month 9–3
Opponents
12 +1
Events
5 0

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.

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 Nayara Diniz De Araujo
Lion Cub Jiu Jitsu Competition 5 Girls GI / 8 & 9 years old (DAY 2: Sunday) / Grey belt / -27 & -30 kg
Method Points 03:00 0–0
Marginal influence +4
Win
October 25, 2025 Aura Lee
Lion Cub Jiu Jitsu Competition 5 Girls GI / 8 & 9 years old (DAY 2: Sunday) / Grey belt / -27 & -30 kg
Method Points 03:00 9–0
Marginal influence +2
Win
October 25, 2025 Lucie Meyers
Lion Cub Jiu Jitsu Competition 5 Girls GI / 8 & 9 years old (DAY 2: Sunday) / Grey belt / -27 & -30 kg
Method Decision 03:00 0–0
Marginal influence +4
Win
October 25, 2025 Nayara Diniz De Araujo
Lion Cub Jiu Jitsu Competition 5 Girls GI / 8 & 9 years old (DAY 2: Sunday) / Grey belt / -27 & -30 kg
Method Points 03:00 13–0
Marginal influence +4
Win
October 25, 2025 Lia Liberato
Lion Cub Jiu Jitsu Competition 5 Girls GI / 8 & 9 years old (DAY 2: Sunday) / Grey belt / -27 & -30 kg
Method Points 03:00 15–0
Marginal influence +6
September 2025 No new matches Change 0 Rating 1,412

Rating-period composition

Rating matches
12 0
Record
9–3 Previous month 9–3
Opponents
11 0
Events
5 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

Relevant matches
21.4
Official ranking percentile
Top 5%
Performance
7.5 pp above expectation

21.4 weighted matches against 21 different opponents across 9 events

Weighted win rate
75.4%
Expected win rate
67.8%
Average opponent rating
1,382
Repeated-opponent share
36.4%
Network connectivity
80.9%