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 +5 Rating 1,347

Rating-period composition

Rating matches
10 0
Record
5–5 Previous month 5–5
Opponents
7 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.

July 2026 No new matches Change 0 Rating 1,342

Rating-period composition

Rating matches
10 0
Record
5–5 Previous month 5–5
Opponents
7 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.

June 2026 No new matches · 3 left period Change -71 Rating 1,342

Rating-period composition

Rating matches
10 -3
Record
5–5 Previous month 8–5
Opponents
7 -1
Events
3 -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.

May 2026 No new matches Change -7 Rating 1,413

Rating-period composition

Rating matches
13 0
Record
8–5 Previous month 8–5
Opponents
8 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.

April 2026 2 new matches Change +14 Rating 1,420

Rating-period composition

Rating matches
13 +2
Record
8–5 Previous month 7–4
Opponents
8 +1
Events
4 +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 25, 2026 Prokop Zoubek
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -36 kg / Mixed (4 - 9 years)
Method Points 05:00 4–2
Marginal influence +22
Loss
April 25, 2026 Kiril Delos Santos
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -36 kg / Mixed (4 - 9 years)
Method Points 05:00 0–6
Marginal influence -10
March 2026 No new matches · 4 left period Change -19 Rating 1,406

Rating-period composition

Rating matches
11 -4
Record
7–4 Previous month 9–6
Opponents
7 -3
Events
3 -1

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

February 2026 No new matches Change +9 Rating 1,425

Rating-period composition

Rating matches
15 0
Record
9–6 Previous month 9–6
Opponents
10 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.

January 2026 3 new matches · 1 left period Change +47 Rating 1,416

Rating-period composition

Rating matches
15 +2
Record
9–6 Previous month 7–6
Opponents
10 0
Events
4 0

1 older matches left the 12-month period: 0 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
January 24, 2026 Mykola Beshleha
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -36 kg / Mixed (4 - 9 years)
Method Points 03:00 4–0
Marginal influence +22
Win
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -36 kg / Mixed (4 - 9 years)
Method Submission 01:09 12–0
Marginal influence +13
Loss
January 24, 2026 Kiril Delos Santos
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -36 kg / Mixed (4 - 9 years)
Method Submission 02:41 0–7
Marginal influence -9
December 2025 No new matches Change +1 Rating 1,369

Rating-period composition

Rating matches
13 0
Record
7–6 Previous month 7–6
Opponents
10 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.

November 2025 5 new matches Change +10 Rating 1,368

Rating-period composition

Rating matches
13 +5
Record
7–6 Previous month 5–3
Opponents
10 +3
Events
4 +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
November 1, 2025 Alex Janda
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Points 03:00 0–0
Marginal influence -25
Loss
November 1, 2025 Mykola Beshleha
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Points 03:00 0–5
Marginal influence -19
Win
November 1, 2025 Zoe Horvatova
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Points 03:00 8–0
Marginal influence +16
Loss
November 1, 2025 Kiril Delos Santos
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Points 03:00 0–2
Marginal influence -6
Win
November 1, 2025 Artur Kovalov
TATAMY 17 KIDS (No-GI and GI round robin) Kids / Gi / 7-9 years / Mix / All levels / -36 kg
Method Points 03:00 2–0
Marginal influence +35
October 2025 No new matches · 2 left period Change +41 Rating 1,358

Rating-period composition

Rating matches
8 -2
Record
5–3 Previous month 5–5
Opponents
7 -2
Events
3 -1

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.

September 2025 No new matches Change -11 Rating 1,317

Rating-period composition

Rating matches
10 0
Record
5–5 Previous month 5–5
Opponents
9 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
5.9
Official ranking percentile
Top 45%
Performance
9.7 pp above expectation

5.9 weighted matches against 7 different opponents across 3 events

Weighted win rate
59.2%
Expected win rate
49.6%
Average opponent rating
1,385
Repeated-opponent share
30.0%
Network connectivity
80.9%