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 1,291

Rating-period composition

Rating matches
13 0
Record
5–8 Previous month 5–8
Opponents
8 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 1,291

Rating-period composition

Rating matches
13 0
Record
5–8 Previous month 5–8
Opponents
8 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 Change -1 Rating 1,291

Rating-period composition

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

May 2026 No new matches Change -2 Rating 1,292

Rating-period composition

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

April 2026 8 new matches Change +71 Rating 1,294

Rating-period composition

Rating matches
13 +8
Record
5–8 Previous month 1–4
Opponents
8 +6
Events
3 +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 Zbyněk Zámečník
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) No-Gi / 4-6 years / Mixed (4 - 9 years) / -24 kg / Mixed (4 - 9 years)
Method Submission 00:52 0–0
Marginal influence +10
Win
April 25, 2026 Daniel Uhryn
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) No-Gi / 4-6 years / Mixed (4 - 9 years) / -24 kg / Mixed (4 - 9 years)
Method Submission 00:30 0–0
Marginal influence +17
Loss
April 25, 2026 Constantin Pîslaru
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) No-Gi / 4-6 years / Mixed (4 - 9 years) / -24 kg / Mixed (4 - 9 years)
Method Points 02:00 2–6
Marginal influence -6
Loss
April 25, 2026 Lara Lehár
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -24 kg / Mixed (4 - 9 years)
Method Submission 01:09 0–9
Marginal influence -12
Win
April 25, 2026 Ondřej Smutný
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -24 kg / Mixed (4 - 9 years)
Method Submission 01:30 4–2
Marginal influence +12
Loss
April 25, 2026 Unknown opponent
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -24 kg / Mixed (4 - 9 years)
Method Points 03:00 0–17
Marginal influence -9
Win
April 25, 2026 Benjamin Štumpf
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -24 kg / Mixed (4 - 9 years)
Method Points 03:00 8–4
Marginal influence +13
Loss
April 25, 2026 Unknown opponent
GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -24 kg / Mixed (4 - 9 years)
Method Points 03:00 0–10
Marginal influence -9
March 2026 3 new matches Change +113 Rating 1,223

Rating-period composition

Rating matches
5 +3
Record
1–4 Previous month 0–2
Opponents
2 +1
Events
2 +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
March 22, 2026 Matyáš Píha
CJJA Kids Open – Gladiators Games Kids Gi / White / Pee Wee I (7yrs) / -27,20 kg
Method Points 04:00 2–28
Marginal influence -12
Loss
March 22, 2026 Matyáš Píha
CJJA Kids Open – Gladiators Games Kids Gi / White / Pee Wee I (7yrs) / -27,20 kg
Method Points 04:00 0–31
Marginal influence -12
Win
March 22, 2026 Matyáš Píha
CJJA Kids Open – Gladiators Games Kids Gi / White / Pee Wee I (7yrs) / -27,20 kg
Method Submission 03:39 6–15
Marginal influence +7
February 2026 No new matches Change -14 Rating 1,110

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
Opponents
1 0
Events
1 0

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

January 2026 2 new matches Change Starting point Rating 1,124

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 Constantin Pîslaru
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) No-Gi / 4-6 years / Mixed (4 - 9 years) / -24 kg / Mixed (4 - 9 years)
Method Submission 02:25 0–0
Marginal influence -7
Loss
January 24, 2026 Constantin Pîslaru
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) No-Gi / 4-6 years / Mixed (4 - 9 years) / -24 kg / Mixed (4 - 9 years)
Method Submission 03:16 0–0
Marginal influence -7
Relevant matches
7.2
Official ranking percentile
Top 63%
Performance
0.8 pp below expectation

7.2 weighted matches against 8 different opponents across 3 events

Weighted win rate
46.4%
Expected win rate
47.3%
Average opponent rating
1,234
Repeated-opponent share
38.5%
Network connectivity
80.9%