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 1,551

Rating-period composition

Rating matches
28 0
Record
23–5 Previous month 23–5
Opponents
15 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 Change -2 Rating 1,551

Rating-period composition

Rating matches
28 0
Record
23–5 Previous month 23–5
Opponents
15 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.

June 2026 6 new matches · 2 left period Change +24 Rating 1,553

Rating-period composition

Rating matches
28 +4
Record
23–5 Previous month 18–6
Opponents
15 -1
Events
7 0

2 older matches left the 12-month period: 0 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
June 13, 2026 Alexander Klak
2026 AGF Antwerp Championships No Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Yellow / Light III (Up to 52.20 kg)
Method Submission 03:00 14–4
Marginal influence 0
Win
June 13, 2026 Alexander Klak
2026 AGF Antwerp Championships No Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Yellow / Light III (Up to 52.20 kg)
Method Submission 02:55 13–1
Marginal influence 0
Loss
June 13, 2026 Euan Besems
2026 AGF Antwerp Championships Gi Kids Challenger / Boys / Regular Challenger / Light III (Up to 52.20 kg)
Method Submission 02:09 1–0
Marginal influence -8
Win
June 13, 2026 Alexander Klak
2026 AGF Antwerp Championships Gi Kids Challenger / Boys / Regular Challenger / Light III (Up to 52.20 kg)
Method Points 03:00 4–1
Marginal influence +4
Win
June 13, 2026 Alexander Klak
2026 AGF Antwerp Championships Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Yellow / Light III (Up to 52.20 kg)
Method Submission 00:46 4–0
Marginal influence +4
Win
June 13, 2026 Alexander Klak
2026 AGF Antwerp Championships Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Yellow / Light III (Up to 52.20 kg)
Method Submission 01:00 6–0
Marginal influence +4
May 2026 5 new matches Change +15 Rating 1,529

Rating-period composition

Rating matches
24 +5
Record
18–6 Previous month 14–5
Opponents
16 +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
May 9, 2026 Ouweys Bouklil
OPEN BRUSSELS 3 FBJJB RANKING KID GI & NoGi 09.05.2026 BOY GI DIVISION (-16years old) / KID GI / KID (-16years old) / -55kg (cat 1 )
Method Points 04:00 7–0
Marginal influence +9
Win
May 9, 2026 Sandro Rubino
OPEN BRUSSELS 3 FBJJB RANKING KID GI & NoGi 09.05.2026 BOY GI DIVISION (-16years old) / KID GI / KID (-16years old) / -55kg (cat 1 )
Method Points 04:00 0–0
Marginal influence +7
Loss
May 9, 2026 Iustin Duina
OPEN BRUSSELS 3 FBJJB RANKING KID GI & NoGi 09.05.2026 BOY GI DIVISION (-16years old) / KID GI / KID (-16years old) / -55kg (cat 1 )
Method Submission 00:16 0–0
Marginal influence -17
Win
May 9, 2026 Sandro Rubino
OPEN BRUSSELS 3 FBJJB RANKING KID GI & NoGi 09.05.2026 NoGi DIVISION (-16years old) / KID NoGi / KID (-16years old) / -48kg
Method Points 04:00 6–0
Marginal influence +2
Win
May 9, 2026 Sandro Rubino
OPEN BRUSSELS 3 FBJJB RANKING KID GI & NoGi 09.05.2026 NoGi DIVISION (-16years old) / KID NoGi / KID (-16years old) / -48kg
Method Points 04:00 10–2
Marginal influence +2
April 2026 2 new matches Change +17 Rating 1,514

Rating-period composition

Rating matches
19 +2
Record
14–5 Previous month 12–5
Opponents
13 +1
Events
6 +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 4, 2026 Nathanael CARLHIAN
NO GI - BELGIAN CHAMPIONSHIP KIDS YOUTH & ADULTS 2026 Boys NoGi / Yellow / 10-11-12 yrs / -48 kg
Method Points 04:00 9–0
Marginal influence +5
Win
NO GI - BELGIAN CHAMPIONSHIP KIDS YOUTH & ADULTS 2026 Boys NoGi / Yellow / 10-11-12 yrs / -48 kg
Method Points 04:00 5–2
Marginal influence +7
March 2026 5 new matches · 5 left period Change -9 Rating 1,497

Rating-period composition

Rating matches
17 0
Record
12–5 Previous month 13–4
Opponents
12 0
Events
5 0

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.

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 14, 2026 Sacha Vreux
OPEN BRUSSELS 2 FBJJB RANKING KID GI & NoGi 14.03.2025 BOY KID GI -48kg Cat 2
Method Points 04:00 3–0
Marginal influence +12
Win
March 14, 2026 Ibrahim Siddiqui
OPEN BRUSSELS 2 FBJJB RANKING KID GI & NoGi 14.03.2025 BOY KID GI -48kg Cat 2
Method Submission 02:33 7–0
Marginal influence +6
Win
March 14, 2026 Iassonas PETSETAS
OPEN BRUSSELS 2 FBJJB RANKING KID GI & NoGi 14.03.2025 BOY KID GI -48kg Cat 2
Method Submission 00:41 6–0
Marginal influence +5
Loss
March 14, 2026 Euan Besems
OPEN BRUSSELS 2 FBJJB RANKING KID GI & NoGi 14.03.2025 NoGi KID -48kg cat 2
Method Points 03:00 2–6
Marginal influence -10
Loss
March 14, 2026 Sacha Vreux
OPEN BRUSSELS 2 FBJJB RANKING KID GI & NoGi 14.03.2025 NoGi KID -48kg cat 2
Method Points 03:00 0–7
Marginal influence -13
February 2026 No new matches Change -1 Rating 1,506

Rating-period composition

Rating matches
17 0
Record
13–4 Previous month 13–4
Opponents
12 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.

January 2026 4 new matches · 4 left period Change +62 Rating 1,507

Rating-period composition

Rating matches
17 0
Record
13–4 Previous month 11–6
Opponents
12 -1
Events
5 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
January 24, 2026 Lucas Szymczak
2026 AGF Brugge Championships No Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Yellow / Light II (Up to 47.60 kg)
Method Points 03:00 4–0
Marginal influence +7
Loss
January 24, 2026 André Zaytsev
2026 AGF Brugge Championships No Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Yellow / Light II (Up to 47.60 kg)
Method Points 03:00 2–4
Marginal influence -17
Win
January 24, 2026 Lucas Szymczak
2026 AGF Brugge Championships Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Yellow / Light II (Up to 47.60 kg)
Method Submission 00:18 1–0
Marginal influence +8
Win
January 24, 2026 André Zaytsev
2026 AGF Brugge Championships Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Yellow / Light II (Up to 47.60 kg)
Method Points 03:00 4–2
Marginal influence +11
December 2025 No new matches Change +3 Rating 1,445

Rating-period composition

Rating matches
17 0
Record
11–6 Previous month 11–6
Opponents
13 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.

November 2025 2 new matches Change +26 Rating 1,442

Rating-period composition

Rating matches
17 +2
Record
11–6 Previous month 9–6
Opponents
13 +1
Events
5 +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
November 22, 2025 Nathanael CARLHIAN
BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Boys Gi / Yellow / 10-11-12 yrs / -48 kg
Method Points 04:00 6–2
Marginal influence +10
Win
November 22, 2025 Eymen Ali
BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Boys Gi / Yellow / 10-11-12 yrs / -48 kg
Method Points 04:00 12–0
Marginal influence +5
October 2025 No new matches Change -1 Rating 1,416

Rating-period composition

Rating matches
15 0
Record
9–6 Previous month 9–6
Opponents
12 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.

September 2025 4 new matches · 3 left period Change +20 Rating 1,417

Rating-period composition

Rating matches
15 +1
Record
9–6 Previous month 8–6
Opponents
12 -1
Events
4 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
September 20, 2025 Eymen Ali
BRUSSELS KID (-16y) FBJJB OPEN 1 - Gi & NoGi 20.09.2025 NoGi DIVISION (-16years old) / KID NoGi / KID (-16years old) / -48kg
Method Points 2–0
Marginal influence +5
Win
September 20, 2025 Liam ORiordan
BRUSSELS KID (-16y) FBJJB OPEN 1 - Gi & NoGi 20.09.2025 NoGi DIVISION (-16years old) / KID NoGi / KID (-16years old) / -48kg
Method Submission 00:30 5–0
Marginal influence +2
Win
September 20, 2025 Eymen Ali
BRUSSELS KID (-16y) FBJJB OPEN 1 - Gi & NoGi 20.09.2025 BOY GI DIVISION (-16years old) / KID GI / KID (-16years old) / -48kg*
Method Submission 01:54 10–0
Marginal influence +5
Win
September 20, 2025 Harun Ibrahim
BRUSSELS KID (-16y) FBJJB OPEN 1 - Gi & NoGi 20.09.2025 BOY GI DIVISION (-16years old) / KID GI / KID (-16years old) / -48kg*
Method Points 03:00 7–2
Marginal influence +9
Relevant matches
20.1
Official ranking percentile
Top 5%
Performance
12.8 pp above expectation

20.1 weighted matches against 15 different opponents across 7 events

Weighted win rate
80.2%
Expected win rate
67.4%
Average opponent rating
1,367
Repeated-opponent share
46.4%
Network connectivity
80.9%