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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.

Honours

Medals and placements

Gold
1
Silver
0
Bronze
1
Total medals
2
Events with results
2

Full career record

Wins
4
Losses
5
Matches
9
Win rate
44.4%

Ways of winning

Submission
2
Points
1
Decision
0
Disqualification
0

Personal records

Longest winning streak
1
Longest submission streak
1

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
1
Unique opponents
6
Distinct events
2

Ways of winning

  • Submission 2 67%
  • Points 1 33%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1208
Record
2–2
Win rate
50%
Submission share
100%

No-Gi

Rating
1164
Record
1–3
Win rate
25%
Submission share
0%

Win quality

Grouped by pre-match win probability. This provides context and does not award an extra rating bonus.

As underdog 0–0 Less than 35% expected win probability before the match.
Even match 0–0 Between 35% and 65% expected win probability before the match.
As favourite 0–0 More than 65% expected win probability before the match.

Development

Rating and development

The same published rating, supported by trend, opponent strength and evidence quality.

Current rating
1,265
Change over 90 days
+24
Highest rating in 12 months
1,257
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,341
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
25%
Effective evidence
6.2
Confidence
76/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 2–2 2–2 across 4 rematches against 2 repeat opponents.

Rivals

Opponent Head-to-head record Matches
Ivan Prokopenko 2–0 2
Nassim Khadiji 0–2 2

Recent tournaments

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