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John Aleksander Rizkallah

Blackout Academy

W–L
3–5
Won and lost rating-eligible matches in the past 12 months.
Gi
1,208
Rating based on Gi matches in the past 12 months.
No-Gi
1,164
Rating based on No-Gi matches in the past 12 months.
Current form
3–5
Results from the ten most recent rating-eligible matches.
Opponents
6
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

9
Indexed competition matches
Date Opponent Result Event Division
2026-03-22 Lucas Martinez
Loss
GNC TOUR - TOURNOI DE NICE No-Gi · TOURNOI NOGI / U17 / Masculin / -76 u17 / White belt
2026-03-22 Ivan Prokopenko
Win
GNC TOUR - TOURNOI DE NICE Gi · TOURNOI GI / Masculin / U17 / -76 u17 / White belt
2026-03-22 Ivan Prokopenko
Win
GNC TOUR - TOURNOI DE NICE Gi · TOURNOI GI / Masculin / U17 / -76 u17 / White belt
2025-11-29 Nassim Khadiji
Loss
Grappling Industries BRUSSELS No-Gi · No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
2025-11-29 Unknown User
Win
Grappling Industries BRUSSELS No-Gi · No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
2025-11-29 Ilyas Azaroui
Win
Grappling Industries BRUSSELS No-Gi · No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
2025-11-29 Nykyta Tymofeiev
Loss
Grappling Industries BRUSSELS No-Gi · No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
2025-11-29 Nassim Khadiji
Loss
Grappling Industries BRUSSELS Gi · Gi Kids / White / 14 - 15 years (Male) / -170 lbs
2025-11-29 Teoman Tacal
Loss
Grappling Industries BRUSSELS Gi · Gi Kids / White / 14 - 15 years (Male) / -170 lbs

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 +1 Rating 1,265

Rating-period composition

Rating matches
8 0
Record
3–5 Previous month 3–5
Opponents
6 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.

July 2026 No new matches Change 0 Rating 1,264

Rating-period composition

Rating matches
8 0
Record
3–5 Previous month 3–5
Opponents
6 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.

June 2026 No new matches Change 0 Rating 1,264

Rating-period composition

Rating matches
8 0
Record
3–5 Previous month 3–5
Opponents
6 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.

May 2026 No new matches Change +7 Rating 1,264

Rating-period composition

Rating matches
8 0
Record
3–5 Previous month 3–5
Opponents
6 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.

April 2026 No new matches Change 0 Rating 1,257

Rating-period composition

Rating matches
8 0
Record
3–5 Previous month 3–5
Opponents
6 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.

March 2026 3 new matches Change +30 Rating 1,257

Rating-period composition

Rating matches
8 +3
Record
3–5 Previous month 1–4
Opponents
6 +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
March 22, 2026 Lucas Martinez
GNC TOUR - TOURNOI DE NICE TOURNOI NOGI / U17 / Masculin / -76 u17 / White belt
Method Points 05:00 4–10
Marginal influence -20
Win
March 22, 2026 Ivan Prokopenko
GNC TOUR - TOURNOI DE NICE TOURNOI GI / Masculin / U17 / -76 u17 / White belt
Method Submission 00:11 0–0
Marginal influence +15
Win
March 22, 2026 Ivan Prokopenko
GNC TOUR - TOURNOI DE NICE TOURNOI GI / Masculin / U17 / -76 u17 / White belt
Method Submission 01:01 0–0
Marginal influence +15
February 2026 No new matches Change 0 Rating 1,227

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
4 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 No new matches Change -6 Rating 1,227

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
4 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 1,233

Rating-period composition

Rating matches
5 0
Record
1–4 Previous month 1–4
Opponents
4 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 5 new matches Change Starting point Rating 1,233

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 29, 2025 Nassim Khadiji
Grappling Industries BRUSSELS No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
Method Submission 02:58 0–0
Marginal influence -17
Win
November 29, 2025 Ilyas Azaroui
Grappling Industries BRUSSELS No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
Method Points 04:00 6–2
Marginal influence +15
Loss
November 29, 2025 Nykyta Tymofeiev
Grappling Industries BRUSSELS No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
Method Submission 00:58 0–0
Marginal influence -8
Loss
November 29, 2025 Nassim Khadiji
Grappling Industries BRUSSELS Gi Kids / White / 14 - 15 years (Male) / -170 lbs
Method Decision 04:00 0–0
Marginal influence -14
Loss
November 29, 2025 Teoman Tacal
Grappling Industries BRUSSELS Gi Kids / White / 14 - 15 years (Male) / -170 lbs
Method Submission 03:51 0–12
Marginal influence -9
Relevant matches
6.2
Official ranking percentile
-
Performance
-

6.2 weighted matches against 6 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,341
Repeated-opponent share
25.0%
Network connectivity
87.6%

Classification evidence

Why U18?

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

  • U18 1 event vote Selected outcome

Registrations and outcomes

GNC TOUR - TOURNOI DE NICE
U18 · Counts
TOURNOI NOGI / U17 / Masculin / -76 u17 / White belt
  • Competition age 17
  • Registered age: u18
  • Source category: u18
TOURNOI GI / Masculin / U17 / -76 u17 / White belt
  • Competition age 17
  • Registered age: u18
  • Source category: u18
Grappling Industries BRUSSELS
Does not count
No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
  • Competition age 16
  • Registered age: u16
  • Source category: u16
Gi Kids / White / 14 - 15 years (Male) / -170 lbs
  • Competition age 16
  • Registered age: u16
  • Source category: u16

Classification evidence

Why White?

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

  • white 8 matches in the rating period Selected outcome

Registrations and outcomes

GNC TOUR - TOURNOI DE NICE
white · Counts as a match
TOURNOI NOGI / U17 / Masculin / -76 u17 / White belt
  • Source belt category: white

1 match in the rating period

GNC TOUR - TOURNOI DE NICE
white · Counts as a match
TOURNOI GI / Masculin / U17 / -76 u17 / White belt
  • Source belt category: white

2 matches in the rating period

Grappling Industries BRUSSELS
white · Counts as a match
No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
  • Source belt category: white

3 matches in the rating period

Grappling Industries BRUSSELS
white · Counts as a match
Gi Kids / White / 14 - 15 years (Male) / -170 lbs
  • Source belt category: white

2 matches in the rating period