TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
Language selector
Menu
ES

Aitor Losada

Blakz International

W–L
2–4
Won and lost rating-eligible matches in the past 12 months.
Gi
1,234
Rating based on Gi matches in the past 12 months.
No-Gi
-
Rating based on No-Gi matches in the past 12 months.
Current form
2–4
Results from the ten most recent rating-eligible matches.
Opponents
4
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

7
Indexed competition matches
Date Opponent Result Event Division
2026-04-26 Unax Unibaso Portella
Win
OPEN SANTURTZI | OSO DURO Gi · Boys Gi / Yellow / Teen II (14yrs) / -69,20 kg
2026-03-01 Hector Aguilera
Loss
OPEN BALMASEDA | OSO DURO Gi · Boys Gi / Green / Teen III (15yrs) / -69,20 kg
2026-02-01 Hector Aguilera
Loss
ZAMUDIO CUP | OSO DURO Gi · Boys Gi / Yellow / Teen II (14yrs) / -69,20 kg
2025-11-01 Adrián Calvo Iturbe
Loss
OPEN PAÍS VASCO | D-BJJ Gi · Boys Gi / Yellow / Teen I (13yrs) / -69,20 kg
2025-11-01 Martín Calvo
Win
OPEN PAÍS VASCO | D-BJJ Gi · Boys Gi / Yellow / Teen I (13yrs) / -69,20 kg
2025-11-01 Adrián Calvo Iturbe
Loss
OPEN PAÍS VASCO | D-BJJ Gi · Boys Gi / Yellow / Teen I (13yrs) / -69,20 kg
2025-06-07 Hector Aguilera
Loss
PBJJF BILBAO SPRING INTERNATIONAL OPEN Gi · Kids Gi / Junior 2 Boys ( 12 & 13 years old ) / White / -65 kg

Calculation details

Rating breakdown for the past 12 months

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 1,234

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
4 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.

July 2026 No new matches Change +2 Rating 1,234

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
4 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.

June 2026 No new matches · 1 left period Change -2 Rating 1,232

Rating-period composition

Rating matches
6 -1
Record
2–4 Previous month 2–5
Opponents
4 0
Events
4 -1

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.

May 2026 No new matches Change +3 Rating 1,234

Rating-period composition

Rating matches
7 0
Record
2–5 Previous month 2–5
Opponents
4 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 1 new match Change +65 Rating 1,231

Rating-period composition

Rating matches
7 +1
Record
2–5 Previous month 1–5
Opponents
4 +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
OPEN SANTURTZI | OSO DURO Boys Gi / Yellow / Teen II (14yrs) / -69,20 kg
Method Points 04:00 7–0
Marginal influence +39
March 2026 1 new match Change -3 Rating 1,166

Rating-period composition

Rating matches
6 +1
Record
1–5 Previous month 1–4
Opponents
3 0
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 1, 2026 Hector Aguilera
OPEN BALMASEDA | OSO DURO Boys Gi / Green / Teen III (15yrs) / -69,20 kg
Method Points 04:00 0–7
Marginal influence -13
February 2026 1 new match Change -2 Rating 1,169

Rating-period composition

Rating matches
5 +1
Record
1–4 Previous month 1–3
Opponents
3 0
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.
Loss
February 1, 2026 Hector Aguilera
ZAMUDIO CUP | OSO DURO Boys Gi / Yellow / Teen II (14yrs) / -69,20 kg
Method Submission 03:11 0–10
Marginal influence -13
January 2026 No new matches Change 0 Rating 1,171

Rating-period composition

Rating matches
4 0
Record
1–3 Previous month 1–3
Opponents
3 0
Events
2 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 1,171

Rating-period composition

Rating matches
4 0
Record
1–3 Previous month 1–3
Opponents
3 0
Events
2 0

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

November 2025 3 new matches Change +37 Rating 1,171

Rating-period composition

Rating matches
4 +3
Record
1–3 Previous month 0–1
Opponents
3 +2
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
November 1, 2025 Adrián Calvo Iturbe
OPEN PAÍS VASCO | D-BJJ Boys Gi / Yellow / Teen I (13yrs) / -69,20 kg
Method Points 03:00 0–2
Marginal influence -21
Win
November 1, 2025 Martín Calvo
OPEN PAÍS VASCO | D-BJJ Boys Gi / Yellow / Teen I (13yrs) / -69,20 kg
Method Submission 00:36 9–0
Marginal influence +25
Loss
November 1, 2025 Adrián Calvo Iturbe
OPEN PAÍS VASCO | D-BJJ Boys Gi / Yellow / Teen I (13yrs) / -69,20 kg
Method Points 03:00 0–2
Marginal influence -21
October 2025 No new matches Change +6 Rating 1,134

Rating-period composition

Rating matches
1 0
Record
0–1 Previous month 0–1
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.

September 2025 No new matches Change 0 Rating 1,128

Rating-period composition

Rating matches
1 0
Record
0–1 Previous month 0–1
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.

Relevant matches
4.2
Official ranking percentile
Top 80%
Performance
-

4.2 weighted matches against 4 different opponents across 4 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,302
Repeated-opponent share
33.3%
Network connectivity
80.9%

Classification evidence

Why U16?

Within the published period from 2025-09-01 through 2026-08-31, only competition ages recorded at events in the calculation year determine this outcome, with at most one vote per event. Without such an age, the most recent unambiguous earlier competition age is projected to the calculation year; bracket evidence is the final fallback. The newest evidence breaks a tie.

Evidence outcome

  • U16 3 event votes Selected outcome

Registrations and outcomes

OPEN SANTURTZI | OSO DURO
U16 · Counts
Boys Gi / Yellow / Teen II (14yrs) / -69,20 kg
  • Competition age 14
  • Registered age: u16
  • Source category: u16
OPEN BALMASEDA | OSO DURO
U16 · Counts
Boys Gi / Green / Teen III (15yrs) / -69,20 kg
  • Competition age 14
  • Registered age: u16
  • Source category: u16
ZAMUDIO CUP | OSO DURO
U16 · Counts
Boys Gi / Yellow / Teen II (14yrs) / -69,20 kg
  • Competition age 14
  • Registered age: u16
  • Source category: u16
OPEN PAÍS VASCO | D-BJJ
Does not count
Boys Gi / Yellow / Teen I (13yrs) / -69,20 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14

Classification evidence

Why ≤ 69 kg?

This outcome uses at most one unambiguous upper weight limit per completed ranking event from 2025-09-01 through 2026-08-31. Only the three most recent eligible events are considered, and the lightest verified upper limit is selected. A higher division is not treated as measured body weight.

Evidence outcome

  • ≤ 69 kg 3 competition events Selected outcome

Registrations and outcomes

OPEN SANTURTZI | OSO DURO
≤ 69 kg · Counts as a competition event
Boys Gi / Yellow / Teen II (14yrs) / -69,20 kg
  • Registered weight class: -69,20 kg
  • Source competition limit: -69,20 kg

1 match in the rating period

OPEN BALMASEDA | OSO DURO
≤ 69 kg · Counts as a competition event
Boys Gi / Green / Teen III (15yrs) / -69,20 kg
  • Registered weight class: -69,20 kg
  • Source competition limit: -69,20 kg

1 match in the rating period

ZAMUDIO CUP | OSO DURO
≤ 69 kg · Counts as a competition event
Boys Gi / Yellow / Teen II (14yrs) / -69,20 kg
  • Registered weight class: -69,20 kg
  • Source competition limit: -69,20 kg

1 match in the rating period

OPEN PAÍS VASCO | D-BJJ
≤ 69 kg · Does not count
Boys Gi / Yellow / Teen I (13yrs) / -69,20 kg
  • Registered weight class: -69,20 kg
  • Source competition limit: -69,20 kg

3 matches in the rating period · outside the three most recent unambiguous events

Classification evidence

Why Yellow?

This outcome uses the belt category of every rating-eligible match from 2025-09-01 through 2026-08-31. The most-fought category is selected; the newest evidence breaks a tie.

Evidence outcome

  • yellow 5 matches in the rating period Selected outcome
  • green 1 match in the rating period

Registrations and outcomes

OPEN SANTURTZI | OSO DURO
yellow · Counts as a match
Boys Gi / Yellow / Teen II (14yrs) / -69,20 kg
  • Source belt category: yellow

1 match in the rating period

OPEN BALMASEDA | OSO DURO
green · Counts as a match
Boys Gi / Green / Teen III (15yrs) / -69,20 kg
  • Source belt category: green

1 match in the rating period

ZAMUDIO CUP | OSO DURO
yellow · Counts as a match
Boys Gi / Yellow / Teen II (14yrs) / -69,20 kg
  • Source belt category: yellow

1 match in the rating period

OPEN PAÍS VASCO | D-BJJ
yellow · Counts as a match
Boys Gi / Yellow / Teen I (13yrs) / -69,20 kg
  • Source belt category: yellow

3 matches in the rating period