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 1,284

Rating-period composition

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

July 2026 No new matches Change -1 Rating 1,284

Rating-period composition

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

June 2026 No new matches Change +1 Rating 1,285

Rating-period composition

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

May 2026 No new matches Change +3 Rating 1,284

Rating-period composition

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

April 2026 2 new matches Change +1 Rating 1,281

Rating-period composition

Rating matches
15 +2
Record
6–9 Previous month 5–8
Opponents
12 +2
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.
Loss
April 12, 2026 Miroslav Lagron
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Grappling Gi / U12 Děti chlapci / -35 kg
Method Submission 00:59 2–0
Marginal influence -12
Win
April 12, 2026 Alex Vondrášek
CFS 13 CZECH CHAMPIONSHIP ČSAKJ 2026 Grappling Gi / U12 Děti chlapci / -35 kg
Method Submission 00:11 0–0
Marginal influence +9
March 2026 3 new matches Change -4 Rating 1,280

Rating-period composition

Rating matches
13 +3
Record
5–8 Previous month 4–6
Opponents
10 +2
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
March 21, 2026 Markó Rebeka
TATAMY 20: PRAGUE - KIDS (round robin) Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg
Method Points 04:00 0–3
Marginal influence -14
Loss
March 21, 2026 Mykhailo Shpynta
TATAMY 20: PRAGUE - KIDS (round robin) Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg
Method Submission 00:46 0–0
Marginal influence -6
Win
March 21, 2026 Ondřej Jirásek
TATAMY 20: PRAGUE - KIDS (round robin) Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg
Method Points 04:00 9–4
Marginal influence +10
February 2026 7 new matches Change +108 Rating 1,284

Rating-period composition

Rating matches
10 +7
Record
4–6 Previous month 1–2
Opponents
8 +5
Events
3 +2

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
February 28, 2026 Ondřej Jirásek
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Grappling NoGi / U12 Děti chlapci / -35 kg
Method Points 02:00 2–0
Marginal influence +12
Win
February 28, 2026 Milan Kolomazník
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Grappling NoGi / U12 Děti chlapci / -35 kg
Method Points 02:00 2–0
Marginal influence +20
Loss
February 28, 2026 Ondřej Jirásek
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Grappling Gi / U12 Děti chlapci / -35 kg
Method Points 02:00 5–6
Marginal influence -18
Loss
February 28, 2026 Kiril Delos Santos
CZECH FIGHTING SERIES 12 – Under the Lights 2026 Grappling Gi / U12 Děti chlapci / -35 kg
Method Points 02:00 4–8
Marginal influence -7
Loss
February 7, 2026 Luka Long
Pardubice Grappling Open vol.5 Boys Junior No-GI / 9-10 years / -36 kg / Intermediate
Method Submission 01:48 0–0
Marginal influence -7
Loss
February 7, 2026 Ondřej Jirásek
Pardubice Grappling Open vol.5 Boys Junior No-GI / 9-10 years / -36 kg / Intermediate
Method Submission 03:54 4–4
Marginal influence -6
Win
February 7, 2026 Roman Hauf-Soldát
Pardubice Grappling Open vol.5 Boys Junior No-GI / 9-10 years / -36 kg / Intermediate
Method Points 05:00 4–0
Marginal influence +11
January 2026 No new matches Change 0 Rating 1,176

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
Opponents
3 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.

December 2025 No new matches Change 0 Rating 1,176

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
Opponents
3 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.

November 2025 No new matches Change +10 Rating 1,176

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
Opponents
3 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.

October 2025 3 new matches Change Starting point Rating 1,166

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
October 18, 2025 Roman Marčenko
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Grappling Gi / U12 Děti chlapci / -35 kg
Method Submission 01:35 6–4
Marginal influence -15
Win
October 18, 2025 Richard Beneš
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Grappling Gi / U12 Děti chlapci / -35 kg
Method Submission 00:42 8–0
Marginal influence +14
Loss
October 18, 2025 Eliáš Foukal
CZECH FIGHTING SERIES 11, Samurai Cup 2025 Grappling Gi / U12 Děti chlapci / -35 kg
Method Points 02:00 0–9
Marginal influence -13
Relevant matches
10.9
Official ranking percentile
Top 65%
Performance
9.1 pp below expectation

10.9 weighted matches against 12 different opponents across 5 events

Weighted win rate
36.9%
Expected win rate
46.1%
Average opponent rating
1,371
Repeated-opponent share
20.0%
Network connectivity
80.9%